feat: Add new gcloud commands, API clients, and third-party libraries across various services.

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/custom/LICENSE

@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/custom/README.md

@@ -0,0 +1,7 @@
+
+Custom Runtime Definition
+=========================
+
+This is the runtime definition for GAE "custom" runtimes.  Its only job is to
+generate an app.yaml when it sees a Dockerfile present.
+

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/custom/app.yaml

@@ -0,0 +1,2 @@
+env: flex
+runtime: custom

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/custom/bin/detect

@@ -0,0 +1,32 @@
+#!/usr/bin/python
+# Copyright 2015 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import os
+import sys
+
+def main(args):
+  if len(args) != 2:
+    sys.stderr.write('Invalid Usage: %s <source-root-directory>' %
+                     sys.argv[0])
+    return 1
+
+  path = args[1]
+  if os.path.exists(os.path.join(path, 'Dockerfile')):
+    return 0
+  else:
+    return 1
+
+if __name__ == '__main__':
+  sys.exit(main(sys.argv))

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/custom/runtime.yaml

@@ -0,0 +1,11 @@
+author: mmuller@google.com
+name: custom
+description: \
+  Official Google custom runtime definition.
+  This definition matches runtimes containing a dockerfile.
+api_version: 0.1
+detect:
+  python: bin/detect
+generate_configs:
+  files_to_copy:
+  - app.yaml

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/custom/test/runtime_test.py

@@ -0,0 +1,31 @@
+#!/usr/bin/python
+
+import os
+import unittest
+
+from gae_ext_runtime import testutil
+
+RUNTIME_DEF_ROOT = os.path.dirname(os.path.dirname(__file__))
+
+class RuntimeTest(testutil.TestBase):
+
+  def setUp(self):
+    self.runtime_def_root = RUNTIME_DEF_ROOT
+    super(RuntimeTest, self).setUp()
+
+  def test_custom_runtime(self):
+    self.write_file('Dockerfile', 'boring contents')
+    self.generate_configs()
+    self.assert_file_exists_with_contents('app.yaml',
+                                          'env: flex\nruntime: custom\n')
+
+  def test_custom_runtime_no_write(self):
+    """Ensure custom runtime writes app.yaml to disk with GenerateConfigData."""
+    self.write_file('Dockerfile', 'boring contents')
+    self.generate_config_data()
+    self.assert_file_exists_with_contents(
+        'app.yaml',
+        'env: flex\nruntime: custom\n')
+
+if __name__ == '__main__':
+  unittest.main()

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/go/LICENSE

@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/go/README.md

@@ -0,0 +1,6 @@
+
+Go Externalized Runtime
+=======================
+
+This is the Go runtime definition that will soon be used by gcloud for
+generating dockerfiles for GAE.

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/go/bin/detect

@@ -0,0 +1,103 @@
+#!/usr/bin/python
+# Copyright 2015 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Fingerprinting code for the Go runtime."""
+
+import fnmatch
+import os
+import re
+import sys
+
+# TODO(b/28231839): Import a vendored gae_ext_runtime library until we have a
+# better solution.
+sys.path.append(os.path.join(
+    os.path.dirname(os.path.dirname(os.path.abspath(sys.argv[0]))), 'lib'))
+
+from gae_ext_runtime import comm
+
+def find_go_files(path):
+    """Return list of '*.go' files in directory 'path', listed non-recursively.
+
+    Args:
+        path: (str) Application path.
+
+    Returns:
+        ([str, ...]) List of full pathnames for all '*.go' files under 'path'
+        dir.
+    """
+    go_files = []
+    root, _, filenames = next(os.walk(path))
+    for filename in fnmatch.filter(filenames, '*.go'):
+        go_files.append(os.path.join(root, filename))
+    return go_files
+
+
+def has_main(filename):
+  """Check filename for 'package main' and 'func main'.
+
+  Args:
+    filename: (str) File name to check.
+
+  Returns:
+    (bool) True if main is found in filename.
+  """
+  with open(filename) as f:
+      found_package = False
+      found_func = False
+      for line in f:
+          if re.match('^package main', line):
+              found_package = True
+          elif re.match('^func main', line):
+              found_func = True
+          if found_package and found_func:
+              return True
+  return False
+
+
+def main(args):
+    if len(args) != 2:
+        # If we're being called incorrectly, this probably isn't happening
+        # from a framework.
+        sys.stderr.write('Invalid Usage: %s <source-root-directory>' %
+                         sys.argv[0])
+        return 1
+    path = args[1]
+
+    comm.info('Checking for Go.')
+
+    # Test #1 - are there any '*.go' files at 'path'?
+    go_files = find_go_files(path)
+    if not go_files:
+        return 1
+
+    # Test #2 - check that one of these files has "package main" and "func main".
+    main_found = False
+    for f in go_files:
+        if has_main(f):
+            comm.info('Found Go main in %s', f)
+            main_found = True
+            break
+    if not main_found:
+        return 1
+
+    # Send the app.yaml contents.
+    runtime = 'custom' if comm.get_config().params.custom else 'go'
+    comm.send_runtime_params(None, {'runtime': 'go'})
+
+    return 0
+
+
+if __name__ == '__main__':
+    sys.exit(main(sys.argv))

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/go/bin/generate_configs

@@ -0,0 +1,38 @@
+#!/usr/bin/python
+# Copyright 2015 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import os
+import sys
+
+# TODO(b/28231839): Import a vendored gae_ext_runtime library until we have a
+# better solution.
+sys.path.append(os.path.join(
+    os.path.dirname(os.path.dirname(os.path.abspath(sys.argv[0]))), 'lib'))
+
+from gae_ext_runtime import comm
+
+ROOT = comm.RuntimeDefinitionRoot(os.path.dirname(os.path.dirname(__file__)))
+
+
+def main(args):
+    params = comm.get_config().params
+    if params.custom or params.deploy:
+        comm.gen_file('Dockerfile', ROOT.read_file('data', 'Dockerfile'))
+        comm.gen_file('.dockerignore', ROOT.read_file('data', 'dockerignore'))
+
+
+if __name__ == '__main__':
+    sys.exit(main(sys.argv))
+

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/go/data/Dockerfile

@@ -0,0 +1,6 @@
+# Dockerfile extending the generic Go image with application files for a
+# single application.
+FROM gcr.io/google-appengine/golang
+
+COPY . /go/src/app
+RUN go-wrapper install -tags appenginevm

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/go/data/dockerignore

@@ -0,0 +1,5 @@
+.dockerignore
+Dockerfile
+.git
+.hg
+.svn

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/go/lib/gae_ext_runtime/__init__.py

@@ -0,0 +1,14 @@
+# Copyright 2016 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/go/lib/gae_ext_runtime/comm.py

@@ -0,0 +1,181 @@
+# Copyright 2015 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Note: this file is part of the sdk-ext-runtime package.  It gets copied into
+# individual GAE runtime modules so that they can be easily deployed.
+
+import json
+import os
+import sys
+
+
+class JSONObject(object):
+    """Wrapper for a JSON object.
+
+    Presents a JSON object as a python object (where fields are attributes)
+    instead of a dictionary.  Undefined attributes produce a value of None
+    instead of an AttributeError.
+
+    Note that attribute names beginning with an underscore are excluded.
+    """
+
+    def __getattr__(self, attr):
+        return None
+
+    def to_dict(self):
+        result = {}
+        for attr, val in self.__dict__.iteritems():
+            if not attr.startswith('_'):
+                result[attr] = _make_serializable(val)
+        return result
+
+    # Alias old style naming so this interoperates with gcloud's appinfo.
+    ToDict = to_dict
+
+
+def _make_serializable(obj):
+    """Converts objects to serializable form."""
+    if isinstance(obj, JSONObject):
+        return obj.to_dict()
+    else:
+        return obj
+
+
+def _write_msg(**message):
+    """Write a message to standard output.
+
+    Args:
+        **message: ({str: object, ...}) A JSON message encoded in keyword
+            arguments.
+    """
+    json.dump(message, sys.stdout, default=_make_serializable)
+    sys.stdout.write('\n')
+    sys.stdout.flush()
+
+
+def error(message, *args):
+    _write_msg(type='error', message=message % args)
+
+
+def warn(message, *args):
+    _write_msg(type='warn', message=message % args)
+
+
+def info(message, *args):
+    _write_msg(type='info', message=message % args)
+
+
+def debug(message, *args):
+    _write_msg(type='debug', message=message % args)
+
+
+def print_status(message, *args):
+    _write_msg(type='print_status', message=message % args)
+
+
+def send_runtime_params(params, appinfo=None):
+    """Send runtime parameters back to the controller.
+
+    Args:
+        params: ({str: object, ...}) Set of runtime parameters.  Must be
+            json-encodable.
+        appinfo: ({str: object, ...} or None) Contents of the app.yaml file to
+            be produced by the runtime definition.  Required fields may be
+            added to this by the framework, the only thing an application
+            needs to provide is the "runtime" field and any additional data
+            fields.
+    """
+    if appinfo is not None:
+        _write_msg(type='runtime_parameters', runtime_data=params,
+                   appinfo=appinfo)
+    else:
+        _write_msg(type='runtime_parameters', runtime_data=params)
+
+def set_docker_context(path):
+    """Send updated Docker context to the controller.
+
+    Args:
+        path: (str) new directory to use as docker context.
+    """
+    _write_msg(type='set_docker_context', path=path)
+
+def get_config():
+    """Request runtime parameters from the controller.
+
+    Returns:
+      (object) The runtime parameters represented as an object.
+    """
+    _write_msg(type='get_config')
+    return dict_to_object(json.loads(sys.stdin.readline()))
+
+
+def dict_to_object(json_dict):
+    """Converts a dictionary to a python object.
+
+    Converts key-values to attribute-values.
+
+    Args:
+      json_dict: ({str: object, ...})
+
+    Returns:
+      (JSONObject)
+    """
+    obj = JSONObject()
+    for name, val in json_dict.iteritems():
+        if isinstance(val, dict):
+          val = dict_to_object(val)
+        setattr(obj, name, val)
+    return obj
+
+
+class RuntimeDefinitionRoot(object):
+    """Abstraction that allows us to access files in the runtime definiton."""
+
+    def __init__(self, path):
+        self.root = path
+
+    def read_file(self, *name):
+        with open(os.path.join(self.root, *name)) as src:
+            return src.read()
+
+
+def gen_file(name, contents):
+    """Generate the file.
+
+    This writes the file to be generated back to the controller.
+
+    Args:
+        name: (str) The UNIX-style relative path of the file.
+        contents: (str) The complete file contents.
+    """
+    _write_msg(type='gen_file', filename=name, contents=contents)
+
+
+def query_user(prompt, default=None):
+    """Query the user for data.
+
+    Args:
+        prompt: (str) Prompt to display to the user.
+        default: (str or None) Default value to use if the user doesn't input
+            anything.
+
+    Returns:
+        (str) Value returned by the user.
+    """
+    kwargs = {}
+    kwargs['prompt'] = prompt
+    if default is not None:
+        kwargs['default'] = default
+    _write_msg(type='query_user', **kwargs)
+    return json.loads(sys.stdin.readline())['result']

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/go/runtime.yaml

@@ -0,0 +1,8 @@
+author: mmuller@google.com
+name: go
+description: Official Google Go runtime definition.
+api_version: 0.1
+detect:
+  python: bin/detect
+generate_configs:
+  python: bin/generate_configs

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/go/test/runtime_test.py

@@ -0,0 +1,133 @@
+# Copyright 2015 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import os
+import unittest
+import yaml
+
+from gae_ext_runtime import testutil
+
+RUNTIME_DEF_ROOT = os.path.dirname(os.path.dirname(__file__))
+
+
+class RuntimeTests(testutil.TestBase):
+
+    def setUp(self):
+        self.runtime_def_root = RUNTIME_DEF_ROOT
+        super(RuntimeTests, self).setUp()
+
+    def assert_no_file(self, filename):
+        """Asserts that the relative path 'filename' does not exist."""
+        self.assertFalse(os.path.exists(os.path.join(self.temp_path, filename)))
+
+    def test_go_files_no_go(self):
+        self.write_file('foo.notgo', 'package main\nfunc main')
+        self.assertFalse(self.generate_configs())
+        self.assertEqual(os.listdir(self.temp_path), ['foo.notgo'])
+
+    def test_go_files_with_go(self):
+        self.write_file('foo.go', 'package main\nfunc main')
+        self.generate_configs()
+        with open(self.full_path('app.yaml')) as f:
+            contents = yaml.load(f)
+        self.assertEqual(contents,
+                         {'runtime': 'go', 'env': 'flex'})
+
+        self.assert_no_file('Dockerfile')
+        self.assert_no_file('.dockerignore')
+        self.generate_configs(deploy=True)
+        self.assert_file_exists_with_contents(
+            'Dockerfile',
+            self.read_runtime_def_file('data', 'Dockerfile'))
+        self.assert_file_exists_with_contents(
+            '.dockerignore',
+            self.read_runtime_def_file('data',  'dockerignore'))
+
+    def test_go_files_in_subdirs(self):
+        """Test go runtime does not recognize go files in subdirectories."""
+        subdir_path = os.mkdir(os.path.join(self.temp_path, 'subdir'))
+        self.write_file(os.path.join('subdir', 'foo.go'),
+                        'package main\nfunc main')
+        self.assertEqual(None, self.generate_configs())
+        self.assertFalse(os.path.exists(self.full_path('app.yaml')))
+
+    def test_go_genfiles_with_go(self):
+        """Test generate_config_data with single .go file."""
+        self.write_file('foo.go', 'package main\nfunc main')
+        self.generate_configs()
+        with open(self.full_path('app.yaml')) as f:
+            contents = yaml.load(f)
+        self.assertEqual(contents,
+                         {'runtime': 'go', 'env': 'flex'})
+
+        self.assert_no_file('Dockerfile')
+        self.assert_no_file('.dockerignore')
+        cfg_files = self.generate_config_data(deploy=True)
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            'Dockerfile',
+            self.read_runtime_def_file('data', 'Dockerfile'))
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            '.dockerignore',
+            self.read_runtime_def_file('data', 'dockerignore'))
+
+    def test_go_custom_runtime(self):
+        self.write_file('foo.go', 'package main\nfunc main')
+        self.generate_configs(custom=True)
+        self.assert_file_exists_with_contents(
+            'app.yaml',
+            'env: flex\nruntime: go\n')
+        self.assert_file_exists_with_contents(
+            'Dockerfile',
+            self.read_runtime_def_file('data', 'Dockerfile'))
+        self.assert_file_exists_with_contents(
+            '.dockerignore',
+            self.read_runtime_def_file('data', 'dockerignore'))
+
+    def test_go_custom_runtime_no_write(self):
+        """Test generate_config_data with custom runtime."""
+        self.write_file('foo.go', 'package main\nfunc main')
+        cfg_files = self.generate_config_data(custom=True)
+        self.assert_file_exists_with_contents(
+            'app.yaml',
+            'env: flex\nruntime: go\n')
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            'Dockerfile',
+            self.read_runtime_def_file('data', 'Dockerfile'))
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            '.dockerignore',
+            self.read_runtime_def_file('data',  'dockerignore'))
+
+    def test_go_runtime_field(self):
+        self.write_file('foo.go', 'package main\nfunc main')
+        config = testutil.AppInfoFake(
+            runtime="go",
+            env=2)
+        self.assertTrue(self.generate_configs(appinfo=config,
+                                              deploy=True))
+
+    def test_go_custom_runtime_field(self):
+        self.write_file('foo.go', 'package main\nfunc main')
+        config = testutil.AppInfoFake(
+            runtime="custom",
+            env=2)
+        self.assertTrue(self.generate_configs(appinfo=config,
+                                              deploy=True))
+
+
+if __name__ == '__main__':
+    unittest.main()

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/java/LICENSE

@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
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+
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gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/java/bin/detect

@@ -0,0 +1,98 @@
+#!/usr/bin/python
+# Copyright 2015 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Java detection plugin."""
+
+import os
+import sys
+
+# Augment the path with our library directory.
+ROOT_DIR = os.path.dirname(os.path.dirname(os.path.abspath(sys.argv[0])))
+sys.path.append(os.path.join(ROOT_DIR, 'lib'))
+
+import comm
+
+
+def main(args):
+    if len(args) != 2:
+        # If we're being called incorrectly, this probably isn't happening
+        # from a framework.
+        sys.stderr.write('Invalid Usage: %s <source-root-directory>' % sys.argv[0])
+        return 1
+
+    # Get the first argument, should be the source root directory.
+    path = args[1]
+
+    entrypoint = None
+    server = None
+    openjdk = None
+    config = comm.get_config()
+    appinfo = config.params.appinfo
+    if appinfo and appinfo.entrypoint:
+        entrypoint = appinfo.entrypoint
+
+    comm.info('Checking for Java.')
+    if appinfo:
+        runtime_config = appinfo.runtime_config
+        if runtime_config:
+            for key, value in runtime_config.to_dict().iteritems():
+                if key == 'server':
+                    if value != 'jetty9':
+                        comm.error('Unknown server : %s.' % value)
+                        return 1
+                    server = value
+                elif key == 'jdk':
+                    if value != 'openjdk8':
+                        comm.error('Unknown JDK : %s.' % value)
+                        return 1
+                    openjdk = value
+                else:
+                    comm.error('Unknown runtime_config entry : %s.' % key)
+                    return 1
+
+    artifact_to_deploy = '?'
+
+    # check for any Java known artifacts: a jar, a war, or an exploded Web App.
+    # TODO(ludo): expand to more complex configs with multiple Jars.
+    number_of_possible_artifacts = 0
+    for filename in os.listdir(path):
+        if filename.endswith('.war'):
+            artifact_to_deploy = filename
+            number_of_possible_artifacts += 1
+        if filename.endswith('.jar'):
+            artifact_to_deploy = filename
+            number_of_possible_artifacts += 1
+        if filename.endswith('WEB-INF'):
+            artifact_to_deploy = '.'
+            number_of_possible_artifacts += 1
+    if number_of_possible_artifacts == 0:
+        return 1
+    if number_of_possible_artifacts > 1:
+        comm.error('Too many java artifacts to deploy (.jar, .war, or Java '
+                   'Web App).')
+        return 1
+
+    if not appinfo:
+        appinfo = {'runtime': 'custom' if config.params.custom else 'java'}
+
+    comm.send_runtime_params({'entrypoint': entrypoint, 'server': server,
+                              'openjdk': openjdk,
+                              'artifact_to_deploy': artifact_to_deploy},
+                              appinfo)
+    return 0
+
+
+if __name__ == '__main__':
+    sys.exit(main(sys.argv))

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/java/bin/generate_configs

@@ -0,0 +1,141 @@
+#!/usr/bin/python
+# Copyright 2015 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Java config generation plugin."""
+
+import os
+import StringIO
+import sys
+
+# Augment the path with our library directory.
+ROOT_DIR = os.path.dirname(os.path.dirname(os.path.abspath(sys.argv[0])))
+sys.path.append(os.path.join(ROOT_DIR, 'lib'))
+
+import comm
+import constants
+
+ROOT = comm.RuntimeDefinitionRoot(ROOT_DIR)
+
+
+def is_flex(env):
+    return env in ['2', 'flex', 'flexible']
+
+
+class JavaConfigurator(object):
+    """Generates configuration for a Java application.
+
+      What is supported is:
+        - jar file (run with Open JDK8 image)
+        - war file (run with Jetty9 image)
+        - Exploded war directory (with WEB-INF/):
+          - if env: 2, we use the latest Jetty9 compat runtime image
+          - if not, we use the current Jetty9 compat image we build.
+        This will ease the transition to the new Jetty9 compat runtime for
+        people migrating to env: 2. Once all are on env: 2, we will remove
+        entirely the support for the legacy Jetty9 compat runtime.
+    """
+
+    def __init__(self, appinfo, deploy, entrypoint, server,
+                 openjdk, artifact_to_deploy, custom):
+        """Constructor.
+
+        Args:
+            appinfo: (apphosting.api.appinfo.AppInfoExternal or None) The parsed
+            app.yaml file for the module if it exists.
+            deploy: (bool) True if run in deployment mode.
+            entrypoint: (str) Name of the entrypoint to generate.
+            server: (str) Name of the server to use (jetty9 or None for now).
+            openjdk: (str) Name of the jdk to use (openjdk8 or None for now).
+            artifact_to_deploy: (str) Name of the file or directory to deploy.
+            custom: (bool) True if it is a custom runtime.
+        """
+        self.appinfo = appinfo
+        self.deploy = deploy
+        self.custom = custom
+        self.entrypoint = entrypoint
+        self.server = server
+        self.openjdk = openjdk
+        self.artifact_to_deploy = artifact_to_deploy
+
+    def GenerateConfigs(self):
+        """Generates config files for the module, not including app.yaml.
+           For app.yaml generation, see gae-xrt-java/bin/detect.
+        """
+        if self.custom or self.deploy:
+            self._GenerateDockerfile()
+            self._GenerateDockerignore()
+
+    def _GenerateDockerfile(self):
+      """Generates a Dockerfile appropriate to this application.
+
+      Raises:
+          JavaConfigError: if there is an app.yaml configuration error.
+      """
+      # Customize the dockerfile.
+      out = StringIO.StringIO()
+      if self.artifact_to_deploy.endswith('.war'):
+          if self.appinfo and is_flex(self.appinfo.env):
+              out.write(constants.DOCKERFILE_JETTY_PREAMBLE)
+          else:
+              out.write(constants.DOCKERFILE_JETTY9_PREAMBLE)
+          out.write(constants.DOCKERFILE_INSTALL_WAR.format(
+              self.artifact_to_deploy))
+      if self.artifact_to_deploy.endswith('.jar'):
+          if self.server is not None:
+              raise JavaConfigError('Cannot use server %s '
+                                    'for jar deployment.' % self.server)
+          if self.appinfo and is_flex(self.appinfo.env):
+              out.write(constants.DOCKERFILE_JAVA_PREAMBLE)
+          else:
+              out.write(constants.DOCKERFILE_JAVA8_PREAMBLE)
+          out.write(constants.DOCKERFILE_INSTALL_APP.format(
+              self.artifact_to_deploy))
+      if self.artifact_to_deploy == '.':
+          if self.appinfo and is_flex(self.appinfo.env):
+              out.write(constants.DOCKERFILE_COMPAT_PREAMBLE)
+          elif self.openjdk == 'openjdk8':
+              out.write(constants.DOCKERFILE_COMPAT_PREAMBLE)
+          else:
+              out.write(constants.DOCKERFILE_LEGACY_PREAMBLE)
+          out.write(constants.DOCKERFILE_INSTALL_APP.format(
+              self.artifact_to_deploy))
+
+      # Generate the appropriate start command.
+      if self.entrypoint:
+          out.write(constants.DOCKERFILE_CMD % self.entrypoint)
+      elif self.artifact_to_deploy.endswith('.jar'):
+          # for jar execution generate the command to run:
+          out.write(constants.DOCKERFILE_JAVA8_JAR_CMD.format(
+              self.artifact_to_deploy))
+      comm.gen_file('Dockerfile', out.getvalue())
+
+    def _GenerateDockerignore(self):
+      """Generates a .dockerignore file appropriate to this application."""
+      comm.gen_file('.dockerignore', ROOT.read_file('data', 'dockerignore'))
+
+
+def main(args):
+    config = comm.get_config()
+    JavaConfigurator(config.params.appinfo,
+                     config.params.deploy,
+                     config.runtime_data.entrypoint,
+                     config.runtime_data.server,
+                     config.runtime_data.openjdk,
+                     config.runtime_data.artifact_to_deploy,
+                     config.params.custom).GenerateConfigs()
+
+
+if __name__ == '__main__':
+    sys.exit(main(sys.argv))

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/java/data/dockerignore

@@ -0,0 +1,6 @@
+.dockerignore
+Dockerfile
+.git
+.hg
+.svn
+app.yaml

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/java/lib/comm.py

@@ -0,0 +1,174 @@
+# Copyright 2015 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Note: this file is part of the sdk-ext-runtime package.  It gets copied into
+# individual GAE runtime modules so that they can be easily deployed.
+
+import json
+import os
+import sys
+
+
+class JSONObject(object):
+    """Wrapper for a JSON object.
+
+    Presents a JSON object as a python object (where fields are attributes)
+    instead of a dictionary.  Undefined attributes produce a value of None
+    instead of an AttributeError.
+
+    Note that attribute names beginning with an underscore are excluded.
+    """
+
+    def __getattr__(self, attr):
+        return None
+
+    def to_dict(self):
+        result = {}
+        for attr, val in self.__dict__.iteritems():
+            if not attr.startswith('_'):
+                result[attr] = _make_serializable(val)
+        return result
+
+    # Alias old style naming so this interoperates with gcloud's appinfo.
+    ToDict = to_dict
+
+
+def _make_serializable(obj):
+    """Converts objects to serializable form."""
+    if isinstance(obj, JSONObject):
+        return obj.to_dict()
+    else:
+        return obj
+
+
+def _write_msg(**message):
+    """Write a message to standard output.
+
+    Args:
+        **message: ({str: object, ...}) A JSON message encoded in keyword
+            arguments.
+    """
+    json.dump(message, sys.stdout, default=_make_serializable)
+    sys.stdout.write('\n')
+    sys.stdout.flush()
+
+
+def error(message, *args):
+    _write_msg(type='error', message=message % args)
+
+
+def warn(message, *args):
+    _write_msg(type='warn', message=message % args)
+
+
+def info(message, *args):
+    _write_msg(type='info', message=message % args)
+
+
+def debug(message, *args):
+    _write_msg(type='debug', message=message % args)
+
+
+def print_status(message, *args):
+    _write_msg(type='print_status', message=message % args)
+
+
+def send_runtime_params(params, appinfo=None):
+    """Send runtime parameters back to the controller.
+
+    Args:
+        params: ({str: object, ...}) Set of runtime parameters.  Must be
+            json-encodable.
+        appinfo: ({str: object, ...} or None) Contents of the app.yaml file to
+            be produced by the runtime definition.  Required fields may be
+            added to this by the framework, the only thing an application
+            needs to provide is the "runtime" field and any additional data
+            fields.
+    """
+    if appinfo is not None:
+        _write_msg(type='runtime_parameters', runtime_data=params,
+                   appinfo=appinfo)
+    else:
+        _write_msg(type='runtime_parameters', runtime_data=params)
+
+
+def get_config():
+    """Request runtime parameters from the controller.
+
+    Returns:
+      (object) The runtime parameters represented as an object.
+    """
+    _write_msg(type='get_config')
+    return dict_to_object(json.loads(sys.stdin.readline()))
+
+
+def dict_to_object(json_dict):
+    """Converts a dictionary to a python object.
+
+    Converts key-values to attribute-values.
+
+    Args:
+      json_dict: ({str: object, ...})
+
+    Returns:
+      (JSONObject)
+    """
+    obj = JSONObject()
+    for name, val in json_dict.iteritems():
+        if isinstance(val, dict):
+          val = dict_to_object(val)
+        setattr(obj, name, val)
+    return obj
+
+
+class RuntimeDefinitionRoot(object):
+    """Abstraction that allows us to access files in the runtime definiton."""
+
+    def __init__(self, path):
+        self.root = path
+
+    def read_file(self, *name):
+        with open(os.path.join(self.root, *name)) as src:
+            return src.read()
+
+
+def gen_file(name, contents):
+    """Generate the file.
+
+    This writes the file to be generated back to the controller.
+
+    Args:
+        name: (str) The UNIX-style relative path of the file.
+        contents: (str) The complete file contents.
+    """
+    _write_msg(type='gen_file', filename=name, contents=contents)
+
+
+def query_user(prompt, default=None):
+    """Query the user for data.
+
+    Args:
+        prompt: (str) Prompt to display to the user.
+        default: (str or None) Default value to use if the user doesn't input
+            anything.
+
+    Returns:
+        (str) Value returned by the user.
+    """
+    kwargs = {}
+    kwargs['prompt'] = prompt
+    if default is not None:
+        kwargs['default'] = default
+    _write_msg(type='query_user', **kwargs)
+    return json.loads(sys.stdin.readline())['result']

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/java/lib/constants.py

@@ -0,0 +1,30 @@
+# Copyright 2015 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Constants shared by plugin and tests."""
+
+# rutimes based on appengine-java-vm-runtime GitHub repo
+DOCKERFILE_JAVA8_PREAMBLE = 'FROM gcr.io/google_appengine/openjdk8\n'
+DOCKERFILE_JETTY9_PREAMBLE = 'FROM gcr.io/google_appengine/jetty9\n'
+
+# runtimes based on openjdk-runtime and jetty-runtime GitHub repos
+DOCKERFILE_JAVA_PREAMBLE = 'FROM gcr.io/google_appengine/openjdk\n'
+DOCKERFILE_JETTY_PREAMBLE = 'FROM gcr.io/google_appengine/jetty\n'
+
+DOCKERFILE_LEGACY_PREAMBLE = 'FROM gcr.io/google_appengine/java-compat\n'
+DOCKERFILE_COMPAT_PREAMBLE = 'FROM gcr.io/google_appengine/jetty9-compat\n'
+DOCKERFILE_CMD = 'CMD {0}\n'
+DOCKERFILE_JAVA8_JAR_CMD = 'CMD ["java", "-jar", "/app/{0}"]\n'
+DOCKERFILE_INSTALL_APP = 'ADD {0} /app/\n'
+DOCKERFILE_INSTALL_WAR = 'ADD {0} $JETTY_BASE/webapps/root.war\n'
+

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/java/requirements.txt

@@ -0,0 +1 @@
+mock>=1.3.0,<2

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/java/runtime.yaml

@@ -0,0 +1,22 @@
+# Copyright 2015 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: java
+author: mmuller@google.com
+description: Official Google Java runtime definition.
+api_version: 0.1
+detect:
+    python: bin/detect
+generate_configs:
+    python: bin/generate_configs

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/java/test/runtime_test.py

@@ -0,0 +1,555 @@
+#!/usr/bin/python
+# Copyright 2015 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Tests of the java runtime."""
+
+import logging
+import mock
+import os
+import re
+import sys
+import shutil
+import tempfile
+import textwrap
+import unittest
+
+from gae_ext_runtime import testutil
+from gae_ext_runtime import ext_runtime
+
+# Augment the path with our library directory.
+ROOT_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+sys.path.append(os.path.join(ROOT_DIR, 'lib'))
+
+import constants
+
+#from googlecloudsdk.third_party.appengine.api import appinfo
+#from googlecloudsdk.core import log
+#from googlecloudsdk.api_lib.app import ext_runtime
+#from googlecloudsdk.api_lib.app.runtimes import fingerprinter
+#from googlecloudsdk.api_lib.app.ext_runtimes import fingerprinting
+
+RUNTIME_DEF_ROOT = os.path.dirname(os.path.dirname(__file__))
+
+
+class RuntimeTests(testutil.TestBase):
+
+    def setUp(self):
+        self.runtime_def_root = RUNTIME_DEF_ROOT
+        super(RuntimeTests, self).setUp()
+
+    def assert_no_file(self, *path):
+        self.assertFalse(os.path.exists(self.full_path(*path)))
+
+    def make_app_yaml(self, runtime):
+        return 'env: flex\nruntime: {runtime}\n'.format(runtime=runtime)
+
+    def test_java_all_defaults(self):
+        self.write_file('foo.jar', '')
+
+        self.generate_configs()
+
+        self.assert_file_exists_with_contents('app.yaml',
+                                              self.make_app_yaml('java'))
+        self.assert_no_file('Dockerfile')
+        self.assert_no_file('.dockerignore')
+
+        self.generate_configs(deploy=True)
+
+        self.assert_file_exists_with_contents(
+            '.dockerignore',
+            self.read_runtime_def_file('data', 'dockerignore'))
+        dockerfile_contents = [
+            constants.DOCKERFILE_JAVA_PREAMBLE,
+            constants.DOCKERFILE_INSTALL_APP.format('foo.jar'),
+            constants.DOCKERFILE_JAVA8_JAR_CMD.format('foo.jar'),
+        ]
+        self.assert_file_exists_with_contents('Dockerfile',
+                                              ''.join(dockerfile_contents))
+
+        self.assertEqual(set(os.listdir(self.temp_path)),
+                         {'.dockerignore', 'Dockerfile', 'app.yaml', 'foo.jar'})
+
+    def test_java_all_defaults_no_write(self):
+        """Test generate_config_data after writing app.yaml."""
+        self.write_file('foo.jar', '')
+
+        self.generate_configs()
+
+        self.assert_file_exists_with_contents('app.yaml',
+                                              self.make_app_yaml('java'))
+        self.assert_no_file('Dockerfile')
+        self.assert_no_file('.dockerignore')
+
+        cfg_files = self.generate_config_data(deploy=True)
+
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            '.dockerignore',
+            self.read_runtime_def_file('data', 'dockerignore'))
+        dockerfile_contents = [
+            constants.DOCKERFILE_JAVA_PREAMBLE,
+            constants.DOCKERFILE_INSTALL_APP.format('foo.jar'),
+            constants.DOCKERFILE_JAVA8_JAR_CMD.format('foo.jar'),
+        ]
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            'Dockerfile',
+            ''.join(dockerfile_contents))
+
+        self.assertEqual(set(os.listdir(self.temp_path)),
+                         {'app.yaml', 'foo.jar'})
+
+    def test_java_custom(self):
+        self.write_file('foo.jar', '')
+        self.generate_configs(deploy=False, custom=True)
+
+        self.assert_file_exists_with_contents('app.yaml',
+                                              self.make_app_yaml('custom'))
+
+        self.assert_file_exists_with_contents(
+            '.dockerignore',
+            self.read_runtime_def_file('data', 'dockerignore'))
+        dockerfile_contents = [
+            constants.DOCKERFILE_JAVA_PREAMBLE,
+            constants.DOCKERFILE_INSTALL_APP.format('foo.jar'),
+            constants.DOCKERFILE_JAVA8_JAR_CMD.format('foo.jar'),
+        ]
+        self.assert_file_exists_with_contents('Dockerfile',
+                                              ''.join(dockerfile_contents))
+
+    def test_java_custom_no_write(self):
+        """Test generate_config_data with custom=True.
+
+        app.yaml should be written to disk. Also tests correct dockerfile
+        contents with a .jar.
+        """
+        self.write_file('foo.jar', '')
+        cfg_files = self.generate_config_data(deploy=False, custom=True)
+
+        self.assert_file_exists_with_contents('app.yaml',
+                                              self.make_app_yaml('custom'))
+
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            '.dockerignore',
+            self.read_runtime_def_file('data', 'dockerignore'))
+        dockerfile_contents = [
+            constants.DOCKERFILE_JAVA_PREAMBLE,
+            constants.DOCKERFILE_INSTALL_APP.format('foo.jar'),
+            constants.DOCKERFILE_JAVA8_JAR_CMD.format('foo.jar'),
+        ]
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            'Dockerfile',
+            ''.join(dockerfile_contents))
+
+    def test_java_files_no_java(self):
+        self.write_file('foo.nojava', '')
+        self.assertFalse(self.generate_configs())
+        self.assertEqual(os.listdir(self.temp_path), ['foo.nojava'])
+
+    def test_java_files_with_war(self):
+        self.write_file('foo.war', '')
+
+        self.generate_configs()
+        self.assert_file_exists_with_contents('app.yaml',
+                                              self.make_app_yaml('java'))
+        self.assert_no_file('Dockerfile')
+        self.assert_no_file('.dockerignore')
+
+        self.generate_configs(deploy=True)
+        dockerfile_contents = [
+            constants.DOCKERFILE_JETTY_PREAMBLE,
+            constants.DOCKERFILE_INSTALL_WAR.format('foo.war'),
+        ]
+        self.assert_file_exists_with_contents('Dockerfile',
+                                            ''.join(dockerfile_contents))
+        self.assert_file_exists_with_contents(
+            '.dockerignore', self.read_runtime_def_file('data', 'dockerignore'))
+
+    def test_java_files_with_war_no_write(self):
+        """Test generate_config_data Dockerfile contents with .war file."""
+        self.write_file('foo.war', '')
+
+        self.generate_configs()
+        self.assert_file_exists_with_contents('app.yaml',
+                                              self.make_app_yaml('java'))
+        self.assert_no_file('Dockerfile')
+        self.assert_no_file('.dockerignore')
+
+        cfg_files = self.generate_config_data(deploy=True)
+        dockerfile_contents = [
+            constants.DOCKERFILE_JETTY_PREAMBLE,
+            constants.DOCKERFILE_INSTALL_WAR.format('foo.war'),
+        ]
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            'Dockerfile',
+            ''.join(dockerfile_contents))
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            '.dockerignore',
+            self.read_runtime_def_file('data', 'dockerignore'))
+
+    def test_java_files_with_jar(self):
+        self.write_file('foo.jar', '')
+
+        self.generate_configs()
+        self.assert_file_exists_with_contents('app.yaml',
+                                              self.make_app_yaml('java'))
+        self.assert_no_file('Dockerfile')
+        self.assert_no_file('.dockerignore')
+
+        self.generate_configs(deploy=True)
+        dockerfile_contents = [
+            constants.DOCKERFILE_JAVA_PREAMBLE,
+            constants.DOCKERFILE_INSTALL_APP.format('foo.jar'),
+            constants.DOCKERFILE_JAVA8_JAR_CMD.format('foo.jar'),
+        ]
+        self.assert_file_exists_with_contents('Dockerfile',
+                                              ''.join(dockerfile_contents))
+        self.assert_file_exists_with_contents(
+            '.dockerignore',
+            self.read_runtime_def_file('data', 'dockerignore'))
+
+    def test_java_files_with_jar_no_write(self):
+        """Test generate_config_data Dockerfile contents with .jar file."""
+        self.write_file('foo.jar', '')
+
+        self.generate_configs()
+        self.assert_file_exists_with_contents('app.yaml',
+                                              self.make_app_yaml('java'))
+        self.assert_no_file('Dockerfile')
+        self.assert_no_file('.dockerignore')
+
+        cfg_files = self.generate_config_data(deploy=True)
+        dockerfile_contents = [
+            constants.DOCKERFILE_JAVA_PREAMBLE,
+            constants.DOCKERFILE_INSTALL_APP.format('foo.jar'),
+            constants.DOCKERFILE_JAVA8_JAR_CMD.format('foo.jar'),
+        ]
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            'Dockerfile',
+            ''.join(dockerfile_contents))
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            '.dockerignore',
+            self.read_runtime_def_file('data', 'dockerignore'))
+
+    def test_java_files_with_webinf(self):
+        self.write_file('WEB-INF', '')
+
+        self.generate_configs()
+        self.assert_file_exists_with_contents('app.yaml',
+                                              self.make_app_yaml('java'))
+        self.assert_no_file('Dockerfile')
+        self.assert_no_file('.dockerignore')
+
+        self.generate_configs(deploy=True)
+        dockerfile_contents = [
+            constants.DOCKERFILE_COMPAT_PREAMBLE,
+            constants.DOCKERFILE_INSTALL_APP.format('.'),
+        ]
+        self.assert_file_exists_with_contents('Dockerfile',
+                                              ''.join(dockerfile_contents))
+        self.assert_file_exists_with_contents(
+            '.dockerignore',
+            self.read_runtime_def_file('data', 'dockerignore'))
+
+    def test_java_files_with_webinf_no_write(self):
+        """Test generate_config_data Dockerfile contents with 'WEB-INF' file."""
+        self.write_file('WEB-INF', '')
+
+        self.generate_configs()
+        self.assert_file_exists_with_contents('app.yaml',
+                                              self.make_app_yaml('java'))
+        self.assert_no_file('Dockerfile')
+        self.assert_no_file('.dockerignore')
+
+        cfg_files = self.generate_config_data(deploy=True)
+        dockerfile_contents = [
+            constants.DOCKERFILE_COMPAT_PREAMBLE,
+            constants.DOCKERFILE_INSTALL_APP.format('.'),
+        ]
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            'Dockerfile',
+            ''.join(dockerfile_contents))
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            '.dockerignore',
+            self.read_runtime_def_file('data', 'dockerignore'))
+
+    def test_java_files_with_too_many_artifacts(self):
+        self.write_file('WEB-INF', '')
+        self.write_file('foo.jar', '')
+
+        errors = []
+
+        def ErrorFake(message):
+          errors.append(message)
+
+        with mock.patch.dict(ext_runtime._LOG_FUNCS, {'error': ErrorFake}):
+            self.assertFalse(self.generate_configs())
+
+        self.assertEqual(errors,
+                         ['Too many java artifacts to deploy (.jar, .war, or '
+                          'Java Web App).'])
+
+    # TODO(b/63385240): cover the case were the app.yaml might not be called
+    # app.yaml. For example: "gen-config --config=foo.yaml <path>"
+    # will use foo.yaml
+    def test_java_files_with_war_and_yaml(self):
+        self.write_file('foo.war', '')
+        appinfo = testutil.AppInfoFake(
+            runtime='java',
+            env='flex',
+            runtime_config=dict(
+                jdk='openjdk8',
+                server='jetty9'))
+        self.generate_configs(appinfo=appinfo, deploy=True)
+        dockerfile_contents = [
+            constants.DOCKERFILE_JETTY_PREAMBLE,
+            constants.DOCKERFILE_INSTALL_WAR.format('foo.war'),
+        ]
+        self.assert_file_exists_with_contents('Dockerfile',
+                                              ''.join(dockerfile_contents))
+        self.assert_file_exists_with_contents(
+            '.dockerignore',
+            self.read_runtime_def_file('data', 'dockerignore'))
+
+    def test_java_files_with_war_and_yaml_no_write(self):
+        """Test generate_config_data with .war and fake appinfo."""
+        self.write_file('foo.war', '')
+        appinfo = testutil.AppInfoFake(
+            runtime='java',
+            env='2',
+            runtime_config=dict(
+                jdk='openjdk8',
+                server='jetty9'))
+        cfg_files = self.generate_config_data(appinfo=appinfo, deploy=True)
+        dockerfile_contents = [
+            constants.DOCKERFILE_JETTY_PREAMBLE,
+            constants.DOCKERFILE_INSTALL_WAR.format('foo.war'),
+        ]
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            'Dockerfile',
+            ''.join(dockerfile_contents))
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            '.dockerignore',
+            self.read_runtime_def_file('data', 'dockerignore'))
+
+    def test_java_files_with_web_inf_and_yaml_and_env2(self):
+        self.write_file('WEB-INF', '')
+        config = testutil.AppInfoFake(
+            runtime='java',
+            env='2',
+            runtime_config=dict(
+              jdk='openjdk8',
+              server='jetty9'))
+        self.generate_configs(appinfo=config, deploy=True)
+        dockerfile_contents = [
+            constants.DOCKERFILE_COMPAT_PREAMBLE,
+            constants.DOCKERFILE_INSTALL_APP.format('.'),
+        ]
+        self.assert_file_exists_with_contents('Dockerfile',
+                                              ''.join(dockerfile_contents))
+        self.assert_file_exists_with_contents(
+            '.dockerignore',
+            self.read_runtime_def_file('data', 'dockerignore'))
+
+    def test_java_files_with_web_inf_and_yaml_and_env2_no_write(self):
+        """Test generate_config_data with .war, fake appinfo, env=2."""
+        self.write_file('WEB-INF', '')
+        config = testutil.AppInfoFake(
+            runtime='java',
+            env='2',
+            runtime_config=dict(
+                jdk='openjdk8',
+                server='jetty9'))
+        cfg_files = self.generate_config_data(appinfo=config, deploy=True)
+        dockerfile_contents = [
+            constants.DOCKERFILE_COMPAT_PREAMBLE,
+            constants.DOCKERFILE_INSTALL_APP.format('.'),
+        ]
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            'Dockerfile',
+            ''.join(dockerfile_contents))
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            '.dockerignore',
+            self.read_runtime_def_file('data', 'dockerignore'))
+
+    def test_java_files_with_web_inf_and_yaml_and_no_env2(self):
+        self.write_file('WEB-INF', '')
+        config = testutil.AppInfoFake(
+            runtime='java',
+            vm=True,
+            runtime_config=dict(server='jetty9'))
+        self.generate_configs(appinfo=config, deploy=True)
+        dockerfile_contents = [
+            constants.DOCKERFILE_LEGACY_PREAMBLE,
+            constants.DOCKERFILE_INSTALL_APP.format('.'),
+        ]
+        self.assert_file_exists_with_contents('Dockerfile',
+                                              ''.join(dockerfile_contents))
+        self.assert_file_exists_with_contents(
+            '.dockerignore',
+            self.read_runtime_def_file('data', 'dockerignore'))
+
+    def test_java_files_with_web_inf_and_yaml_and_no_env2_no_write(self):
+        """Test generate_config_data with .war, fake appinfo, env != 2."""
+        self.write_file('WEB-INF', '')
+        config = testutil.AppInfoFake(
+            runtime='java',
+            vm=True,
+            runtime_config=dict(server='jetty9'))
+        cfg_files = self.generate_config_data(appinfo=config, deploy=True)
+        dockerfile_contents = [
+            constants.DOCKERFILE_LEGACY_PREAMBLE,
+            constants.DOCKERFILE_INSTALL_APP.format('.'),
+        ]
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            'Dockerfile',
+            ''.join(dockerfile_contents))
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            '.dockerignore',
+            self.read_runtime_def_file('data', 'dockerignore'))
+
+    def test_java_files_with_web_inf_and_yaml_and_open_jdk8_no_env2(self):
+        self.write_file('WEB-INF', '')
+        config = testutil.AppInfoFake(
+            runtime='java',
+            vm=True,
+            runtime_config=dict(
+                jdk='openjdk8',
+                server='jetty9'))
+        self.generate_configs(appinfo=config, deploy=True)
+        dockerfile_contents = [
+            constants.DOCKERFILE_COMPAT_PREAMBLE,
+            constants.DOCKERFILE_INSTALL_APP.format('.'),
+        ]
+        self.assert_file_exists_with_contents('Dockerfile',
+                                              ''.join(dockerfile_contents))
+        self.assert_file_exists_with_contents(
+            '.dockerignore',
+            self.read_runtime_def_file('data', 'dockerignore'))
+
+    def test_java_files_with_web_inf_and_yaml_and_open_jdk8_no_env2_no_write(
+            self):
+        """Test generate_config_data with WEB-INF file, fake appinfo."""
+        self.write_file('WEB-INF', '')
+        config = testutil.AppInfoFake(
+            runtime='java',
+            vm=True,
+            runtime_config=dict(
+                jdk='openjdk8',
+                server='jetty9'))
+        cfg_files = self.generate_config_data(appinfo=config, deploy=True)
+        dockerfile_contents = [
+            constants.DOCKERFILE_COMPAT_PREAMBLE,
+            constants.DOCKERFILE_INSTALL_APP.format('.'),
+        ]
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            'Dockerfile',
+            ''.join(dockerfile_contents))
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            '.dockerignore',
+            self.read_runtime_def_file('data', 'dockerignore'))
+
+    def test_java_files_with_config_error(self):
+        self.write_file('foo.war', '')
+
+        errors = []
+
+        def ErrorFake(message):
+          errors.append(message)
+
+        config = testutil.AppInfoFake(
+            runtime='java',
+            env='2',
+            runtime_config=dict(
+                jdk='openjdk9'))
+        with mock.patch.dict(ext_runtime._LOG_FUNCS, {'error': ErrorFake}):
+            self.assertFalse(self.generate_configs(appinfo=config, deploy=True))
+        self.assertEqual(errors, ['Unknown JDK : openjdk9.'])
+
+    def test_java_custom_runtime_field(self):
+        self.write_file('foo.jar', '')
+        config = testutil.AppInfoFake(
+            runtime='java',
+            env='2')
+        self.assertTrue(self.generate_configs(appinfo=config, deploy=True))
+
+    def test_java7_runtime(self):
+        self.write_file('WEB-INF', '')
+        config = testutil.AppInfoFake(
+            runtime='java7',
+            vm=True)
+        self.generate_configs(appinfo=config, deploy=True)
+        dockerfile_contents = [
+            constants.DOCKERFILE_LEGACY_PREAMBLE,
+            constants.DOCKERFILE_INSTALL_APP.format('.'),
+        ]
+        self.assert_file_exists_with_contents('Dockerfile',
+                                              ''.join(dockerfile_contents))
+        self.assert_file_exists_with_contents(
+            '.dockerignore',
+            self.read_runtime_def_file('data', 'dockerignore'))
+
+    def test_java7_runtime_no_write(self):
+        """Test generate_config_data with java7 runtime."""
+        self.write_file('WEB-INF', '')
+        config = testutil.AppInfoFake(
+            runtime='java7',
+            vm=True)
+        cfg_files = self.generate_config_data(appinfo=config, deploy=True)
+        dockerfile_contents = [
+            constants.DOCKERFILE_LEGACY_PREAMBLE,
+            constants.DOCKERFILE_INSTALL_APP.format('.'),
+        ]
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            'Dockerfile',
+            ''.join(dockerfile_contents))
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            '.dockerignore',
+            self.read_runtime_def_file('data', 'dockerignore'))
+
+    def test_detect_appinfo_war(self):
+        self.write_file('foo.war', '')
+        configurator = self.detect()
+        self.assertEqual(configurator.generated_appinfo, {'runtime':'java',
+                                                          'env': 'flex'})
+
+    def test_detect_appinfo_jar(self):
+        self.write_file('foo.jar', '')
+        configurator = self.detect()
+        self.assertEqual(configurator.generated_appinfo, {'runtime':'java',
+                                                          'env': 'flex'})
+
+if __name__ == '__main__':
+  unittest.main()
+
+

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/nodejs/.gitignore

@@ -0,0 +1 @@
+*.pyc

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/nodejs/CONTRIBUTING.md

@@ -0,0 +1,24 @@
+Want to contribute? Great! First, read this page (including the small print at the end).
+
+### Before you contribute
+Before we can use your code, you must sign the
+[Google Individual Contributor License Agreement](https://developers.google.com/open-source/cla/individual?csw=1)
+(CLA), which you can do online. The CLA is necessary mainly because you own the
+copyright to your changes, even after your contribution becomes part of our
+codebase, so we need your permission to use and distribute your code. We also
+need to be sure of various other things—for instance that you'll tell us if you
+know that your code infringes on other people's patents. You don't have to sign
+the CLA until after you've submitted your code for review and a member has
+approved it, but you must do it before we can put your code into our codebase.
+Before you start working on a larger contribution, you should get in touch with
+us first through the issue tracker with your idea so that we can help out and
+possibly guide you. Coordinating up front makes it much easier to avoid
+frustration later on.
+
+### Code reviews
+All submissions, including submissions by project members, require review. We
+use Github pull requests for this purpose.
+
+### The small print
+Contributions made by corporations are covered by a different agreement than
+the one above, the Software Grant and Corporate Contributor License Agreement.

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/nodejs/LICENSE

@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
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+
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gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/nodejs/README.md

@@ -0,0 +1,6 @@
+
+Node.js Externalized Runtime
+============================
+
+This is the node.js runtime definition that will soon be used by gcloud for
+generating dockerfiles for GAE.

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/nodejs/bin/detect

@@ -0,0 +1,145 @@
+#!/usr/bin/python
+# Copyright 2015 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Language detection script.
+
+import json
+import os
+import re
+import sys
+import subprocess
+
+DEV_NULL = open(os.devnull, 'w')
+
+# Augment the path with our library directory.
+ROOT_DIR = os.path.dirname(os.path.dirname(os.path.abspath(sys.argv[0])))
+sys.path.append(os.path.join(ROOT_DIR, 'lib'))
+
+import comm
+
+def asList(val):
+    """Returns the value if it is a list else returns a list with the value.
+    """
+    return val if isinstance(val, list) else [val]
+
+def main(args):
+
+    if len(args) != 2:
+        # If we're being called incorrectly, this probably isn't happening from a
+        # framework.
+        sys.stderr.write('Invalid Usage: %s <source-root-directory>' %
+                         sys.argv[0])
+        return 1
+
+    # Get the first argument, should be the source root directory.
+    path = args[1]
+
+    # Show failures in debug or error depending on whether nodejs has been
+    # explicitly specified.
+    config = comm.get_config()
+    if ((config.params.appinfo and config.params.appinfo.runtime) or
+        config.params.runtime):
+        log_detect_error = comm.error
+    else:
+        log_detect_error = comm.debug
+
+    comm.info('Checking for Node.js.')
+    package_json = os.path.join(path, 'package.json')
+    yarn_lock_name = 'yarn.lock'
+    yarn_lock = os.path.join(path, yarn_lock_name)
+    got_shrinkwrap = False
+
+    if not os.path.isfile(package_json):
+        comm.debug('node.js checker: No package.json file.')
+        got_package_json = False
+        got_scripts_start = False
+        node_version = None
+        use_yarn = False
+    else:
+        got_package_json = True
+        # If there's a package.json file, that's unusual enough that any
+        # errors should be surfaced to the user.
+        log_detect_error = comm.error
+
+        # Consider the yarn.lock file as present if and only if the yarn.lock
+        # file exists and is not specified as being skipped in app.yaml.
+        try:
+            raw_skip_files = config.params.appinfo.skip_files
+            skip_files = [] if raw_skip_files is None else asList(raw_skip_files)
+        except AttributeError:
+            # If the skip_file attribute or any other parent attribute
+            # does not exist, treat the skip_files as not user specified.
+            skip_files = []
+
+        yarn_lock_exists = os.path.isfile(yarn_lock)
+        yarn_lock_skipped = False
+        for pattern in skip_files:
+            if re.match(pattern, yarn_lock_name) is not None:
+                yarn_lock_skipped = True
+                break;
+
+        use_yarn = yarn_lock_exists and not yarn_lock_skipped
+
+        # Try to read the package.json file.
+        try:
+            with open(package_json) as f:
+                contents = json.load(f)
+        except (IOError, ValueError) as ex:
+            # If we have an invalid or unreadable package.json file, there's
+            # something funny going on here so fail recognition.
+            # A package.json that exists is unusual enough that we want to warn
+            # regardless of whether the nodejs runtime was specified.
+            log_detect_error('node.js checker: error accessing package.json: '
+                             '%r' % ex)
+            return 1
+
+        # See if we've got a scripts.start field.
+        got_scripts_start = bool(contents.get('scripts', {}).get('start'))
+
+        # See if a version of node is specified.
+        try:
+            node_version = contents.get('engines', {}).get('node', None)
+            comm.info('node version is %s', node_version)
+        except AttributeError:
+            # Most likely "engines" wasn't a dictionary.
+            comm.warn('node.js checker: ignoring invalid "engines" field in '
+                      'package.json')
+            node_version = None
+
+        if node_version is None:
+            comm.warn('No node version specified.  Please add your node '
+                      'version, see '
+                      'https://docs.npmjs.com/files/package.json#engines')
+
+    if got_scripts_start or os.path.exists(os.path.join(path, 'server.js')):
+      runtime = 'custom' if config.params.custom else 'nodejs'
+      appinfo = {'runtime': runtime,
+                 'env': 'flex'}
+      comm.send_runtime_params({'got_package_json': got_package_json,
+                                'got_scripts_start': got_scripts_start,
+                                'node_version': node_version,
+                                'use_yarn': use_yarn},
+                                appinfo=appinfo)
+
+    else:
+        log_detect_error('node.js checker: Neither "start" in the "scripts" '
+                         'section of "package.json" nor the "server.js" file '
+                         'were found.')
+        return 1
+
+    return 0
+
+if __name__ == '__main__':
+    sys.exit(main(sys.argv))

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/nodejs/bin/generate_configs

@@ -0,0 +1,90 @@
+#!/usr/bin/python
+# Copyright 2015 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import os
+import StringIO
+import pipes
+import sys
+
+# Augment the path with our library directory.
+ROOT_DIR = os.path.dirname(os.path.dirname(os.path.abspath(sys.argv[0])))
+sys.path.append(os.path.join(ROOT_DIR, 'lib'))
+
+import comm
+
+ROOT = comm.RuntimeDefinitionRoot(ROOT_DIR)
+
+# The template for the docker command that is injected into the Dockerfile
+# when the user specifies a node version in their "engines" section.
+INSTALL_NODE_TEMPLATE = ROOT.read_file('data/install-node-version')
+
+def main(args):
+    """Generate all config files for the module."""
+
+    # Get runtime parameters from the controller.
+    info = comm.get_config()
+    runtime_data = info.runtime_data
+    params = info.params
+
+    # Generate app.yaml.
+    if not params.appinfo:
+        app_yaml = 'app.yaml'
+        runtime = 'custom' if params.custom else 'nodejs'
+        app_yaml_contents = ROOT.read_file('data/app.yaml')
+        comm.gen_file(app_yaml,
+                      app_yaml_contents.format(runtime=runtime))
+
+    if params.custom or params.deploy:
+        dockerfile = 'Dockerfile'
+
+        # Customize the dockerfile.
+        out = StringIO.StringIO()
+        out.write(ROOT.read_file('data', 'Dockerfile'))
+        if runtime_data.node_version:
+            # Let node check to see if it satisfies the version constraint and
+            # try to install the correct version if not.
+            out.write(INSTALL_NODE_TEMPLATE %
+                      {'version_spec': pipes.quote(runtime_data.node_version)})
+
+        # If the directory structure indicates that yarn is being used
+        # then install yarn since (unlike npm) Node.js doesn't include it
+        if runtime_data.use_yarn:
+            out.write(ROOT.read_file('data', 'install-yarn'))
+
+        out.write('COPY . /app/\n')
+
+        # Generate npm or yarn install if there is a package.json.
+        if runtime_data.got_package_json:
+            out.write(
+                ROOT.read_file('data/{0}-package-json-install'.
+                               format('yarn' if runtime_data.use_yarn
+                                      else 'npm')))
+
+        # Generate the appropriate start command.
+        if runtime_data.got_scripts_start:
+            out.write(
+                'CMD {0} start\n'.format('yarn' if runtime_data.use_yarn
+                                         else 'npm'))
+        else:
+            out.write('CMD node server.js\n')
+
+        comm.gen_file('Dockerfile', out.getvalue())
+
+        # Generate .dockerignore
+        dockerignore = '.dockerignore'
+        comm.gen_file(dockerignore, ROOT.read_file('data/dockerignore'))
+
+if __name__ == '__main__':
+    main(sys.argv)

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/nodejs/data/Dockerfile

@@ -0,0 +1,3 @@
+# Dockerfile extending the generic Node image with application files for a
+# single application.
+FROM gcr.io/google_appengine/nodejs

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/nodejs/data/app.yaml

@@ -0,0 +1,2 @@
+env: flex
+runtime: {runtime}

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/nodejs/data/dockerignore

@@ -0,0 +1,22 @@
+# Copyright 2015 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+node_modules
+.dockerignore
+Dockerfile
+npm-debug.log
+yarn-error.log
+.git
+.hg
+.svn

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/nodejs/data/install-node-version

@@ -0,0 +1,4 @@
+# Check to see if the the version included in the base runtime satisfies
+# %(version_spec)s, if not then do an npm install of the latest available
+# version that satisfies it.
+RUN /usr/local/bin/install_node %(version_spec)s

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/nodejs/data/install-yarn

@@ -0,0 +1,6 @@
+# You have to specify "--unsafe-perm" with npm install
+# when running as root.  Failing to do this can cause
+# install to appear to succeed even if a preinstall
+# script fails, and may have other adverse consequences
+# as well.
+RUN npm install --unsafe-perm --global yarn

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/nodejs/data/npm-package-json-install

@@ -0,0 +1,11 @@
+# You have to specify "--unsafe-perm" with npm install
+# when running as root.  Failing to do this can cause
+# install to appear to succeed even if a preinstall
+# script fails, and may have other adverse consequences
+# as well.
+# This command will also cat the npm-debug.log file after the
+# build, if it exists.
+RUN npm install --unsafe-perm || \
+  ((if [ -f npm-debug.log ]; then \
+      cat npm-debug.log; \
+    fi) && false)

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/nodejs/data/yarn-package-json-install

@@ -0,0 +1,5 @@
+
+RUN yarn install --production || \
+  ((if [ -f yarn-error.log ]; then \
+      cat yarn-error.log; \
+    fi) && false)

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/nodejs/lib/comm.py

@@ -0,0 +1,121 @@
+# Copyright 2015 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import json
+import os
+import sys
+
+def _write_msg(**message):
+    """Write a message to standard output.
+
+    Args:
+        **message: ({str: object, ...}) A JSON message encoded in keyword
+            arguments.
+    """
+    json.dump(message, sys.stdout)
+    sys.stdout.write('\n')
+    sys.stdout.flush()
+
+
+def error(message, *args):
+    _write_msg(type='error', message=message % args)
+
+
+def warn(message, *args):
+    _write_msg(type='warn', message=message % args)
+
+
+def info(message, *args):
+    _write_msg(type='info', message=message % args)
+
+
+def debug(message, *args):
+    _write_msg(type='debug', message=message % args)
+
+
+def print_status(message, *args):
+    _write_msg(type='print_status', message=message % args)
+
+
+def send_runtime_params(params, appinfo=None):
+    """Send runtime parameters back to the controller.
+
+    Args:
+        params: ({str: object, ...}) Set of runtime parameters.  Must be
+            json-encodable.
+        appinfo: ({str: object, ...}) Contents of the app.yaml file to
+            be produced by the runtime definition.  Required fields may be
+            added to this by the framework, the only thing an application
+            needs to provide is the "runtime" field and any additional data
+            fields.
+    """
+    if appinfo is not None:
+        _write_msg(type='runtime_parameters', runtime_data=params,
+                   appinfo=appinfo)
+    else:
+        _write_msg(type='runtime_parameters', runtime_data=params)
+
+
+def get_config():
+    """Request runtime parameters from the controller.
+
+    Returns:
+      (object) The runtime parameters represented as an object.
+    """
+    _write_msg(type='get_config')
+    return dict_to_object(json.loads(sys.stdin.readline()))
+
+
+def dict_to_object(json_dict):
+    """Converts a dictionary to a python object.
+
+    Converts key-values to attribute-values.
+
+    Args:
+      json_dict: ({str: object, ...})
+
+    Returns:
+      (object)
+    """
+    class Object(object):
+        pass
+    obj = Object()
+    for name, val in json_dict.iteritems():
+        if isinstance(val, dict):
+          val = dict_to_object(val)
+        setattr(obj, name, val)
+    return obj
+
+
+class RuntimeDefinitionRoot(object):
+    """Abstraction that allows us to access files in the runtime definiton."""
+
+    def __init__(self, path):
+        self.root = path
+
+    def read_file(self, *name):
+        with open(os.path.join(self.root, *name)) as src:
+            return src.read()
+
+
+def gen_file(name, contents):
+    """Generate the file.
+
+    This writes the file to be generated back to the controller.
+
+    Args:
+        name: (str) The UNIX-style relative path of the file.
+        contents: (str) The complete file contents.
+    """
+    _write_msg(type='gen_file', filename=name, contents=contents)

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/nodejs/runtime.yaml

@@ -0,0 +1,8 @@
+author: mmuller@google.com
+name: nodejs
+description: Official Google Node.js runtime definition.
+api_version: 0.1
+detect:
+  python: bin/detect
+generate_configs:
+  python: bin/generate_configs

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/nodejs/test/runtime_test.py

@@ -0,0 +1,480 @@
+#!/usr/bin/python
+
+import mock
+import os
+import re
+import sys
+import stat
+import shutil
+import tempfile
+import textwrap
+import unittest
+
+from gae_ext_runtime import ext_runtime
+from gae_ext_runtime import testutil
+
+RUNTIME_DEF_ROOT = os.path.dirname(os.path.dirname(__file__))
+
+
+class RuntimeTests(testutil.TestBase):
+
+    def setUp(self):
+        self.runtime_def_root = RUNTIME_DEF_ROOT
+        super(RuntimeTests, self).setUp()
+
+    def read_dist_file(self, *args):
+        """Read the entire contents of the file.
+
+        Returns the entire contents of the file identified by a set of
+        arguments forming a path relative to the root of the runtime
+        definition.
+
+        TODO: Move this down into the SDK.
+
+        Args:
+            *args: A set of path components (see full_path()).  Note that
+                these are relative to the runtime definition root, not the
+                temporary directory.
+        """
+        with open(os.path.join(self.runtime_def_root, *args)) as fp:
+            return fp.read()
+
+    def test_node_js_server_js_only(self):
+        self.write_file('server.js', 'fake contents')
+        self.generate_configs()
+        self.assert_file_exists_with_contents(
+            'app.yaml',
+            self.read_dist_file('data', 'app.yaml').format(runtime='nodejs'))
+
+        self.generate_configs(deploy=True)
+        self.assert_file_exists_with_contents(
+            'Dockerfile',
+            self.read_dist_file('data', 'Dockerfile') + textwrap.dedent("""\
+                COPY . /app/
+                CMD node server.js
+                """))
+        self.assert_file_exists_with_contents(
+            '.dockerignore',
+            self.read_dist_file('data', 'dockerignore'))
+        self.assertEqual(set(os.listdir(self.temp_path)),
+                         {'Dockerfile', '.dockerignore', 'app.yaml',
+                          'server.js'})
+
+    def test_node_js_server_js_only_no_write(self):
+        """Test generate_config_data with only .js files.
+
+        After running generate_configs(), app.yaml exists; after
+        generate_config_data(), only app.yaml should exist on disk --
+        Dockerfile and .dockerignore should be returned by the method."""
+        self.write_file('server.js', 'fake contents')
+        self.generate_configs()
+        self.assert_file_exists_with_contents(
+            'app.yaml',
+            self.read_dist_file('data', 'app.yaml').format(runtime='nodejs'))
+
+        cfg_files = self.generate_config_data(deploy=True)
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            'Dockerfile',
+            self.read_dist_file('data', 'Dockerfile') + textwrap.dedent("""\
+                COPY . /app/
+                CMD node server.js
+                """))
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            '.dockerignore',
+            self.read_dist_file('data', 'dockerignore'))
+        self.assertEqual(set(os.listdir(self.temp_path)),
+                         {'app.yaml', 'server.js'})
+        self.assertEqual({f.filename for f in cfg_files},
+                         {'Dockerfile', '.dockerignore'})
+
+    def _validate_docker_files_for_npm(self):
+        base_dockerfile = self.read_dist_file('data', 'Dockerfile')
+        self.assert_file_exists_with_contents(
+            'Dockerfile',
+            base_dockerfile + 'COPY . /app/\n' +
+            self.read_dist_file('data', 'npm-package-json-install') +
+            'CMD npm start\n')
+        self.assert_file_exists_with_contents(
+            '.dockerignore',
+            self.read_dist_file('data', 'dockerignore'))
+
+    def test_node_js_package_json_npm(self):
+        self.write_file('foo.js', 'bogus contents')
+        self.write_file('package.json', '{"scripts": {"start": "foo.js"}}')
+        self.generate_configs()
+        self.assert_file_exists_with_contents(
+            'app.yaml',
+            self.read_dist_file('data', 'app.yaml').format(runtime='nodejs'))
+        self.generate_configs(deploy=True)
+        self._validate_docker_files_for_npm()
+        self.assertEqual(set(os.listdir(self.temp_path)),
+                         {'Dockerfile', '.dockerignore', 'app.yaml',
+                          'foo.js', 'package.json'})
+
+    def _validate_docker_files_for_yarn(self):
+        base_dockerfile = self.read_dist_file('data', 'Dockerfile')
+        install_yarn = self.read_dist_file('data', 'install-yarn')
+        self.assert_file_exists_with_contents(
+            'Dockerfile',
+            base_dockerfile + install_yarn + 'COPY . /app/\n' +
+            self.read_dist_file('data', 'yarn-package-json-install') +
+            'CMD yarn start\n')
+        self.assert_file_exists_with_contents(
+            '.dockerignore',
+            self.read_dist_file('data', 'dockerignore'))
+
+    def test_node_js_package_json_yarn(self):
+        self.write_file('foo.js', 'bogus contents')
+        self.write_file('package.json', '{"scripts": {"start": "foo.js"}}')
+        self.write_file('yarn.lock', 'yarn overridden')
+        self.generate_configs()
+        self.assert_file_exists_with_contents(
+            'app.yaml',
+            self.read_dist_file('data', 'app.yaml').format(runtime='nodejs'))
+        self.generate_configs(deploy=True)
+        self._validate_docker_files_for_yarn()
+        self.assertEqual(set(os.listdir(self.temp_path)),
+                         {'Dockerfile', '.dockerignore', 'app.yaml',
+                          'foo.js', 'package.json', 'yarn.lock'})
+
+    def _validate_file_list_for_skip_yarn_lock(self):
+        self.assertEqual(set(os.listdir(self.temp_path)),
+                         {'Dockerfile', '.dockerignore', 'yarn.lock',
+                          'foo.js', 'package.json'})
+
+    def test_skip_yarn_lock_with_other_files(self):
+        """Ensure use_yarn is False with yarn.lock present but is being skipped.
+
+        Further, this test verifies that use_yarn is False even if multiple
+        other entries are present in skip_files.
+
+        A yarn executable is injected that passes all checks to ensure that if
+        yarn.lock is set to be skipped, use_yarn is set to False even if yarn
+        can be executed and reports that the yarn.lock file is valid.
+        """
+        self.write_file('package.json', '{"scripts": {"start": "foo.js"}}')
+        self.write_file('foo.js', 'fake contents')
+        self.write_file('yarn.lock', 'fake contents')
+        config = testutil.AppInfoFake(runtime='nodejs',
+                                      skip_files=['^abc$',
+                                                  '^xyz$',
+                                                  '^yarn\.lock$',
+                                                  '^node_modules$'])
+        configurator = self.detect(appinfo=config)
+        self.assertEqual(configurator.data['use_yarn'], False)
+        self.generate_configs(appinfo=config, deploy=True)
+        self._validate_docker_files_for_npm()
+        self._validate_file_list_for_skip_yarn_lock()
+
+    def test_only_skip_yarn_lock(self):
+        """Ensure use_yarn is False with yarn.lock present but is being skipped.
+
+        Further, this test ensures use_yarn is false if the value obtained
+        from skip_files is a regex string and not a list of strings.
+
+        A yarn executable is injected that passes all checks to ensure that if
+        yarn.lock is set to be skipped, use_yarn is set to False even if yarn
+        can be executed and reports that the yarn.lock file is valid.
+        """
+        self.write_file('package.json', '{"scripts": {"start": "foo.js"}}')
+        self.write_file('foo.js', 'fake contents')
+        self.write_file('yarn.lock', 'fake contents')
+        config = testutil.AppInfoFake(runtime='nodejs',
+                                      skip_files='^yarn\.lock$')
+        configurator = self.detect(appinfo=config)
+        self.assertEqual(configurator.data['use_yarn'], False)
+        self.generate_configs(appinfo=config, deploy=True)
+        self._validate_docker_files_for_npm()
+        self._validate_file_list_for_skip_yarn_lock()
+
+    def test_do_not_skip_yarn_lock(self):
+        """Ensure use_yarn is True with yarn.lock present and not skipped.
+        """
+        self.write_file('package.json', '{"scripts": {"start": "foo.js"}}')
+        self.write_file('foo.js', 'fake contents')
+        self.write_file('yarn.lock', 'fake contents')
+        # Here only 'node_modules' will be skipped
+        config = testutil.AppInfoFake(runtime='nodejs',
+                                      skip_files='^node_modules$')
+        configurator = self.detect(appinfo=config)
+        self.assertEqual(configurator.data['use_yarn'], True)
+        self.generate_configs(appinfo=config, deploy=True)
+        self._validate_docker_files_for_yarn()
+        self._validate_file_list_for_skip_yarn_lock()
+
+    def test_use_yarn_skip_files_not_present(self):
+        """Ensure use_yarn is True with yarn.lock present and not skipped.
+
+        In particular, this test ensures use_yarn is True even if app.yaml
+        doesn't contain a skip_files section.
+        """
+        self.write_file('package.json', '{"scripts": {"start": "foo.js"}}')
+        self.write_file('foo.js', 'fake contents')
+        self.write_file('yarn.lock', 'fake contents')
+        config = testutil.AppInfoFake(runtime='nodejs')
+        configurator = self.detect(appinfo=config)
+        self.assertEqual(configurator.data['use_yarn'], True)
+        self.generate_configs(appinfo=config, deploy=True)
+        self._validate_docker_files_for_yarn()
+        self._validate_file_list_for_skip_yarn_lock()
+
+    def test_node_js_package_json_no_write(self):
+        """Test generate_config_data with a nodejs file and package.json."""
+        self.write_file('foo.js', 'bogus contents')
+        self.write_file('package.json', '{"scripts": {"start": "foo.js"}}')
+        self.generate_configs()
+        self.assert_file_exists_with_contents(
+            'app.yaml',
+            self.read_dist_file('data', 'app.yaml').format(runtime='nodejs'))
+
+        cfg_files = self.generate_config_data(deploy=True)
+
+        base_dockerfile = self.read_dist_file('data', 'Dockerfile')
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            'Dockerfile',
+            base_dockerfile + 'COPY . /app/\n' +
+            self.read_dist_file('data', 'npm-package-json-install') +
+            'CMD npm start\n')
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            '.dockerignore',
+            self.read_dist_file('data', 'dockerignore'))
+        self.assertEqual(set(os.listdir(self.temp_path)),
+                         {'app.yaml', 'foo.js', 'package.json'})
+        self.assertEqual({f.filename for f in cfg_files},
+                         {'Dockerfile', '.dockerignore'})
+
+    def test_detect_basic(self):
+        """Ensure that appinfo will be generated in detect method."""
+        self.write_file('foo.js', 'bogus contents')
+        self.write_file('package.json', '{"scripts": {"start": "foo.js"}}')
+        configurator = self.detect()
+        self.assertEqual(configurator.generated_appinfo,
+                         {u'runtime': 'nodejs',
+                          u'env': 'flex'})
+
+    def test_detect_custom(self):
+        """Ensure that appinfo is correct with custom=True."""
+        self.write_file('foo.js', 'bogus contents')
+        self.write_file('package.json', '{"scripts": {"start": "foo.js"}}')
+        configurator = self.detect(custom=True)
+        self.assertEqual(configurator.generated_appinfo,
+                         {'runtime': 'custom',
+                          'env': 'flex'})
+
+    def test_detect_no_start_no_server(self):
+        """Ensure that detect fails if no scripts.start field, no server.js."""
+        self.write_file('foo.js', 'bogus contents')
+        self.write_file('package.json', '{"scripts": {"not-start": "foo.js"}}')
+        configurator = self.detect()
+        self.assertEqual(configurator, None)
+
+    def test_detect_no_start_with_server(self):
+        """Ensure appinfo generated if no scripts.start, server.js exists."""
+        self.write_file('server.js', 'bogus contents')
+        self.write_file('package.json', '{"scripts": {"not-start": "foo.js"}}')
+        configurator = self.detect()
+        self.assertEqual(configurator.generated_appinfo,
+                         {'runtime': 'nodejs',
+                          'env': 'flex'})
+
+    def test_node_js_with_engines(self):
+        self.write_file('foo.js', 'bogus contents')
+        self.write_file('package.json',
+                        '{"scripts": {"start": "foo.js"},'
+                        '"engines": {"node": "0.12.3"}}')
+        self.generate_configs(deploy=True)
+        dockerfile_path = self.full_path('Dockerfile')
+        self.assertTrue(os.path.exists(dockerfile_path))
+
+        # This just verifies that the crazy node install line is generated, it
+        # says nothing about whether or not it works.
+        rx = re.compile(r'RUN npm install')
+        for line in open(dockerfile_path):
+            if rx.match(line):
+                break
+        else:
+            self.fail('node install line not generated')
+
+    def test_node_js_with_engines_no_write(self):
+        """Test generate_config_data with 'engines' in package.json."""
+        self.write_file('foo.js', 'bogus contents')
+        self.write_file('package.json',
+                        '{"scripts": {"start": "foo.js"},'
+                        '"engines": {"node": "0.12.3"}}')
+        cfg_files = self.generate_config_data(deploy=True)
+        self.assertIn('Dockerfile', [f.filename for f in cfg_files])
+
+        # This just verifies that the crazy node install line is generated, it
+        # says nothing about whether or not it works.
+        rx = re.compile(r'RUN npm install')
+        line_generated = False
+        for cfg_file in cfg_files:
+            if cfg_file.filename == 'Dockerfile':
+                for line in cfg_file.contents.split('\n'):
+                    if rx.match(line):
+                        line_generated = True
+        if not line_generated:
+            self.fail('node install line not generated')
+
+    def test_node_js_custom_runtime(self):
+        self.write_file('server.js', 'fake contents')
+        self.generate_configs(custom=True)
+        self.assert_file_exists_with_contents(
+            'app.yaml',
+            self.read_dist_file('data', 'app.yaml').format(runtime='custom'))
+        self.assertEqual(sorted(os.listdir(self.temp_path)),
+                         ['.dockerignore', 'Dockerfile', 'app.yaml',
+                          'server.js'])
+
+    def test_node_js_custom_runtime_no_write(self):
+        """Test generate_config_data with custom runtime.
+
+        Should generate an app.yaml on disk, the Dockerfile and
+        .dockerignore in memory."""
+        self.write_file('server.js', 'fake contents')
+        cfg_files = self.generate_config_data(custom=True)
+        self.assert_file_exists_with_contents(
+            'app.yaml',
+            self.read_dist_file('data', 'app.yaml').format(runtime='custom'))
+        self.assertEqual(set(os.listdir(self.temp_path)),
+                         {'app.yaml', 'server.js'})
+        self.assertEqual({f.filename for f in cfg_files},
+                         {'Dockerfile', '.dockerignore'})
+
+    def test_node_js_runtime_field(self):
+        self.write_file('server.js', 'fake contents')
+        config = testutil.AppInfoFake(runtime='nodejs')
+        self.generate_configs(appinfo=config, deploy=True)
+        self.assertTrue(os.path.exists(self.full_path('Dockerfile')))
+
+    def test_node_js_custom_runtime_field(self):
+        self.write_file('server.js', 'fake contents')
+        config = testutil.AppInfoFake(runtime='custom')
+        self.assertTrue(self.generate_configs(appinfo=config, deploy=True))
+
+    def test_invalid_package_json(self):
+        self.write_file('package.json', '')
+        self.write_file('server.js', '')
+        self.generate_configs()
+        self.assertFalse(self.generate_configs())
+
+    # Tests that verify that the generated files match verbatim output.
+    # These will need to be maintained whenever the code generation changes,
+    # but this ensures that any diffs we introduce in the generate files will
+    # be reviewed.
+
+    def test_node_js_with_engines_retroactive(self):
+        self.write_file('foo.js', 'bogus contents')
+        self.write_file('package.json',
+                        '{"scripts": {"start": "foo.js"},'
+                        '"engines": {"node": "0.12.3"}}')
+        self.generate_configs(deploy=True)
+        self.assert_file_exists_with_contents(
+            'Dockerfile',
+            textwrap.dedent("""\
+                # Dockerfile extending the generic Node image with application files for a
+                # single application.
+                FROM gcr.io/google_appengine/nodejs
+                # Check to see if the the version included in the base runtime satisfies
+                # 0.12.3, if not then do an npm install of the latest available
+                # version that satisfies it.
+                RUN /usr/local/bin/install_node 0.12.3
+                COPY . /app/
+                # You have to specify "--unsafe-perm" with npm install
+                # when running as root.  Failing to do this can cause
+                # install to appear to succeed even if a preinstall
+                # script fails, and may have other adverse consequences
+                # as well.
+                # This command will also cat the npm-debug.log file after the
+                # build, if it exists.
+                RUN npm install --unsafe-perm || \\
+                  ((if [ -f npm-debug.log ]; then \\
+                      cat npm-debug.log; \\
+                    fi) && false)
+                CMD npm start
+                """))
+
+
+class FailureLoggingTests(testutil.TestBase):
+
+    def setUp(self):
+        self.runtime_def_root = RUNTIME_DEF_ROOT
+        super(FailureLoggingTests, self).setUp()
+
+        self.errors = []
+        self.debug = []
+        self.warnings = []
+
+    def error_fake(self, message):
+        self.errors.append(message)
+
+    def debug_fake(self, message):
+        self.debug.append(message)
+
+    def warn_fake(self, message):
+        self.warnings.append(message)
+
+    def test_invalid_package_json(self):
+        self.write_file('package.json', '')
+        self.write_file('server.js', '')
+
+        variations = [
+            (testutil.AppInfoFake(runtime='nodejs'), None),
+            (None, 'nodejs'),
+            (None, None)
+        ]
+        for appinfo, runtime in variations:
+            self.errors = []
+            with mock.patch.dict(ext_runtime._LOG_FUNCS,
+                                 {'error': self.error_fake}):
+                self.generate_configs(appinfo=appinfo, runtime=runtime)
+
+            self.assertTrue(self.errors[0].startswith(
+                'node.js checker: error accessing package.json'))
+
+    def test_no_startup_script(self):
+        with mock.patch.dict(ext_runtime._LOG_FUNCS,
+                             {'debug': self.debug_fake}):
+            self.generate_configs()
+        print self.debug
+        self.assertTrue(self.debug[1].startswith(
+            'node.js checker: Neither "start" in the "scripts" section '
+            'of "package.json" nor the "server.js" file were found.'))
+
+        variations = [
+            (testutil.AppInfoFake(runtime='nodejs'), None),
+            (None, 'nodejs')
+        ]
+        for appinfo, runtime in variations:
+            self.errors = []
+            with mock.patch.dict(ext_runtime._LOG_FUNCS,
+                                 {'error': self.error_fake}):
+                self.generate_configs(appinfo=appinfo, runtime=runtime)
+            self.assertTrue(self.errors[0].startswith(
+                'node.js checker: Neither "start" in the "scripts" section '
+                'of "package.json" nor the "server.js" file were found.'))
+
+    def test_package_json_no_startup_script(self):
+        self.write_file('package.json', '{"scripts": {"not-start": "foo.js"}}')
+
+        variations = [
+            (testutil.AppInfoFake(runtime='nodejs'), None),
+            (None, 'nodejs'),
+            (None, None)
+        ]
+        for appinfo, runtime in variations:
+            self.errors = []
+            with mock.patch.dict(ext_runtime._LOG_FUNCS,
+                                 {'error': self.error_fake}):
+                self.generate_configs(appinfo=appinfo, runtime=runtime)
+            self.assertTrue(self.errors[0].startswith(
+                'node.js checker: Neither "start" in the "scripts" section '
+                'of "package.json" nor the "server.js" file were found.'))
+
+
+if __name__ == '__main__':
+  unittest.main()

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/nodejs/testing.md

@@ -0,0 +1,22 @@
+
+Testing Notes
+=============
+
+To run the test script (`test/runtime_test.py`) you'll need to install the
+Google Cloud SDK add this to your PYTHONPATH:
+
+    export PYTHONPATH=$CLOUD_SDK/lib:$CLOUD_SDK/platform/google_appengine:$PYTHONPATH
+
+Where `$CLOUD_SDK` is the location where the cloud SDK is installed.
+
+Debugging
+---------
+
+If you do "sys.stderr.write(...)" from a plugin script, your output will go
+to a nice shiny bright warning message.  Exceptions will show up as warning
+messages simply by virtue of having been formatted to standard error.
+
+Full logging can be made to happen by adding:
+
+    from googlecloudsdk.core import log
+    log.SetVerbosity(logging.DEBUG)

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/php/CONTRIBUTING.md

@@ -0,0 +1,24 @@
+Want to contribute? Great! First, read this page (including the small print at the end).
+
+### Before you contribute
+Before we can use your code, you must sign the
+[Google Individual Contributor License Agreement](https://developers.google.com/open-source/cla/individual?csw=1)
+(CLA), which you can do online. The CLA is necessary mainly because you own the
+copyright to your changes, even after your contribution becomes part of our
+codebase, so we need your permission to use and distribute your code. We also
+need to be sure of various other things—for instance that you'll tell us if you
+know that your code infringes on other people's patents. You don't have to sign
+the CLA until after you've submitted your code for review and a member has
+approved it, but you must do it before we can put your code into our codebase.
+Before you start working on a larger contribution, you should get in touch with
+us first through the issue tracker with your idea so that we can help out and
+possibly guide you. Coordinating up front makes it much easier to avoid
+frustration later on.
+
+### Code reviews
+All submissions, including submissions by project members, require review. We
+use Github pull requests for this purpose.
+
+### The small print
+Contributions made by corporations are covered by a different agreement than
+the one above, the Software Grant and Corporate Contributor License Agreement.

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/php/LICENSE

@@ -0,0 +1,202 @@
+
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+                           Version 2.0, January 2004
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+
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gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/php/README.md

@@ -0,0 +1,25 @@
+
+PHP Externalized Runtime
+============================
+
+This is the PHP runtime definition that is used by gcloud to generate
+Dockerfiles for GAE.
+
+How to Run Tests
+============================
+
+In order to test your runtime changes you will need to run the following
+commands.
+
+```
+$ sudo apt-get install python-pip
+$ sudo pip install virtualenv
+$ cd $CODE_DIRECTORY
+$ git clone $GIT_HOST/ext-runtime-sdk
+$ virtualenv test_env
+$ . test_env/bin/activate
+(test_env)$ pip install ext-runtime-sdk/
+(test_env)$ pip install PyYaml appengine-config-transformer
+(test_env)$ cd gae-xrt-php
+(test_env)$ python test/runtime_test.py
+```

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/php/bin/detect

@@ -0,0 +1,90 @@
+#!/usr/bin/python
+# Copyright 2016 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# PHP detection script.
+
+import json
+import os
+import posixpath
+import sys
+
+def get_config():
+    """Requests the current runtime configuration.
+
+    Returns:
+        A dictionary containing the current runtime configuration.
+
+    Raises:
+        IOError: An error occurred writing to the controller.
+    """
+    json.dump({'type': 'get_config'}, sys.stdout)
+    sys.stdout.write('\n')
+    sys.stdout.flush()
+
+    return json.loads(sys.stdin.readline())
+
+def main(args):
+    if len(args) != 2:
+        print 'Invalid Usage: {} <source-root-directory>'.format(args[0])
+        return 1
+
+    config = get_config()
+    params = config['params']
+    appinfo = params['appinfo']
+    entrypoint = None
+    if appinfo and 'entrypoint' in appinfo:
+        entrypoint = appinfo['entrypoint']
+        if isinstance(entrypoint, list):
+          entrypoint = json.dumps(entrypoint)
+
+    root = '.'
+    document_root = '/app'
+    if appinfo and 'runtime_config' in appinfo:
+        if 'document_root' in appinfo['runtime_config']:
+            root = appinfo['runtime_config']['document_root']
+            document_root = posixpath.normpath(posixpath.join('/app', root))
+
+    directory = args[1]
+    for dirpath, _, filenames in os.walk(directory):
+        for filename in filenames:
+            if filename.endswith('.php'):
+                # "appinfo" writes to the app.yaml when it's generated, and
+		# "runtime_data" writes to the Dockerfile
+                json_config = {
+                    'type': 'runtime_parameters',
+                    'appinfo': {
+                        'runtime': 'custom' if params['custom'] else 'php',
+                        'env': 'flex',
+                        'runtime_config': {
+                            'document_root': root,
+                        },
+                    },
+                    'runtime_data': {
+                        'entrypoint': entrypoint,
+                        'document_root': document_root,
+                    },
+                }
+                # Prevent "entrypoint: null" in generated app.yaml
+                #if entrypoint:
+                #    json_config['appinfo']['entrypoint'] = entrypoint
+                json.dump(json_config, sys.stdout)
+                sys.stdout.write('\n')
+                sys.stdout.flush()
+                return 0
+
+    return 1
+
+if __name__ == '__main__':
+    sys.exit(main(sys.argv))

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/php/bin/generate_configs

@@ -0,0 +1,84 @@
+#!/usr/bin/python
+# Copyright 2016 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import json
+import os
+import sys
+
+def get_config():
+    """Requests the current runtime configuration.
+
+    Returns:
+        A dictionary containing the current runtime configuration.
+
+    Raises:
+        IOError: An error occurred writing to the controller.
+    """
+    json.dump({'type': 'get_config'}, sys.stdout)
+    sys.stdout.write('\n')
+    sys.stdout.flush()
+
+    return json.loads(sys.stdin.readline())
+
+def send_file(filename, data):
+    """Sends file data to be saved by the controller.
+
+    send_file currently only supports sending ASCII-encoded data. For binary
+    data it must be Base64 encoded and additional "encoding" parameter must be
+    sent indicating the data has been encoded.
+
+    Args:
+        filename: (str) Target filename.
+        data: (str) File contents.
+
+    Raises:
+        IOError: An error occurred writing to the controller.
+    """
+    json.dump({
+        'type': 'gen_file',
+        'filename': filename,
+        'contents': data}, sys.stdout)
+    sys.stdout.write('\n')
+    sys.stdout.flush()
+
+def main(args):
+    config = get_config()
+    params = config['params']
+    if not params['custom'] and not params['deploy']:
+        return 0
+
+    # Locate template directory.
+    template_dir = os.path.join(os.path.dirname(__file__), '..', 'templates')
+
+    # Generate Dockerfile
+    entrypoint = config['runtime_data']['entrypoint']
+    template_name = 'Dockerfile.entrypoint.template' if entrypoint else 'Dockerfile.template'
+    path = os.path.join(template_dir, template_name)
+    with open(path, 'r') as f:
+        data = f.read()
+        document_root = config['runtime_data']['document_root']
+
+        send_file('Dockerfile', data.format(document_root=document_root,
+            entrypoint=entrypoint))
+
+    # Generate .dockerignore
+    path = os.path.join(template_dir, 'dockerignore.template')
+    with open(path, 'r') as f:
+        send_file('.dockerignore', f.read())
+
+    return 0
+
+if __name__ == '__main__':
+    sys.exit(main(sys.argv))

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/php/runtime.yaml

@@ -0,0 +1,8 @@
+author: adamtanner@google.com
+name: php
+description: Official Google PHP runtime definition.
+api_version: 0.1
+detect:
+  python: bin/detect
+generate_configs:
+  python: bin/generate_configs

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/php/templates/Dockerfile.entrypoint.template

@@ -0,0 +1,10 @@
+# Dockerfile extending the generic PHP image with application files for a
+# single application.
+FROM gcr.io/google-appengine/php:latest
+
+# The Docker image will configure the document root according to this
+# environment variable.
+ENV DOCUMENT_ROOT {document_root}
+
+# Allow custom CMD
+CMD {entrypoint}

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/php/templates/Dockerfile.template

@@ -0,0 +1,7 @@
+# Dockerfile extending the generic PHP image with application files for a
+# single application.
+FROM gcr.io/google-appengine/php:latest
+
+# The Docker image will configure the document root according to this
+# environment variable.
+ENV DOCUMENT_ROOT {document_root}

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/php/templates/dockerignore.template

@@ -0,0 +1,19 @@
+# Copyright 2015 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+.dockerignore
+Dockerfile
+.git
+.hg
+.svn

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/php/test/runtime_test.py

@@ -0,0 +1,279 @@
+#!/usr/bin/python
+# Copyright 2016 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import os
+import textwrap
+import unittest
+
+from gae_ext_runtime import testutil
+
+RUNTIME_DEF_ROOT = os.path.dirname(os.path.dirname(__file__))
+
+
+class RuntimeTestCase(testutil.TestBase):
+    """Tests for the PHP external runtime fingerprinter."""
+
+    def license(self):
+        return textwrap.dedent('''\
+            # Copyright 2015 Google Inc. All Rights Reserved.
+            #
+            # Licensed under the Apache License, Version 2.0 (the "License");
+            # you may not use this file except in compliance with the License.
+            # You may obtain a copy of the License at
+            #
+            #    http://www.apache.org/licenses/LICENSE-2.0
+            #
+            # Unless required by applicable law or agreed to in writing, software
+            # distributed under the License is distributed on an "AS IS" BASIS,
+            # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+            # See the License for the specific language governing permissions and
+            # limitations under the License.
+
+            ''')
+
+    def preamble(self):
+        return textwrap.dedent('''\
+            # Dockerfile extending the generic PHP image with application files for a
+            # single application.
+            FROM gcr.io/google-appengine/php:latest
+
+            # The Docker image will configure the document root according to this
+            # environment variable.
+            ''')
+
+    def setUp(self):
+        self.runtime_def_root = RUNTIME_DEF_ROOT
+        super(RuntimeTestCase, self).setUp()
+
+    def file_contents(self, filename):
+        with open(self.full_path(filename)) as f:
+            return f.read()
+
+    def test_generate_without_php_files(self):
+        self.write_file('index.html', 'index')
+
+        self.assertFalse(self.generate_configs())
+
+        self.assertFalse(os.path.exists(self.full_path('app.yaml')))
+        self.assertFalse(os.path.exists(self.full_path('Dockerfile')))
+        self.assertFalse(os.path.exists(self.full_path('.dockerignore')))
+
+    def test_generate_with_php_files(self):
+        self.write_file('index.php', 'index')
+        self.generate_configs()
+
+        app_yaml = self.file_contents('app.yaml')
+        self.assertIn('runtime: php\n', app_yaml)
+        self.assertIn('env: flex\n', app_yaml)
+        self.assertIn('runtime_config:\n  document_root: .\n', app_yaml)
+        self.assertNotIn('entrypoint', app_yaml)
+
+        self.assertFalse(os.path.exists(self.full_path('Dockerfile')))
+        self.assertFalse(os.path.exists(self.full_path('.dockerignore')))
+
+    def test_generate_with_php_files_no_write(self):
+        """Test generate_config_data with a .php file.
+
+        Checks app.yaml contents, app.yaml is written to disk, and
+        Dockerfile and .dockerignore not in the directory.
+        """
+        self.write_file('index.php', 'index')
+        self.generate_config_data()
+
+        app_yaml = self.file_contents('app.yaml')
+        self.assertIn('runtime: php\n', app_yaml)
+        self.assertIn('env: flex\n', app_yaml)
+        self.assertIn('runtime_config:\n  document_root: .\n', app_yaml)
+
+        self.assertFalse(os.path.exists(self.full_path('Dockerfile')))
+        self.assertFalse(os.path.exists(self.full_path('.dockerignore')))
+
+    def test_generate_custom_runtime(self):
+        self.write_file('index.php', 'index')
+        self.generate_configs(custom=True)
+
+        dockerfile = self.file_contents('Dockerfile')
+        self.assertEqual(dockerfile, self.preamble() + textwrap.dedent('''\
+            ENV DOCUMENT_ROOT /app
+            '''))
+
+        self.assert_file_exists_with_contents(
+            '.dockerignore',
+            self.license() + textwrap.dedent('''\
+            .dockerignore
+            Dockerfile
+            .git
+            .hg
+            .svn
+            '''))
+
+    def test_generate_custom_runtime_no_write(self):
+        """Tests generate_config_data with custom runtime."""
+        self.write_file('index.php', 'index')
+        cfg_files = self.generate_config_data(custom=True)
+
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            'Dockerfile',
+            self.preamble() + textwrap.dedent('''\
+            ENV DOCUMENT_ROOT /app
+            '''))
+
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            '.dockerignore',
+            self.license() + textwrap.dedent('''\
+            .dockerignore
+            Dockerfile
+            .git
+            .hg
+            .svn
+            '''))
+
+    def test_generate_with_deploy(self):
+        self.write_file('index.php', 'index')
+        self.generate_configs(deploy=True)
+
+        dockerfile = self.file_contents('Dockerfile')
+        self.assertEqual(dockerfile, textwrap.dedent('''\
+            # Dockerfile extending the generic PHP image with application files for a
+            # single application.
+            FROM gcr.io/google-appengine/php:latest
+
+            # The Docker image will configure the document root according to this
+            # environment variable.
+            ENV DOCUMENT_ROOT /app
+            '''))
+
+        dockerignore = self.file_contents('.dockerignore')
+        self.assertEqual(dockerignore, self.license() + textwrap.dedent('''\
+            .dockerignore
+            Dockerfile
+            .git
+            .hg
+            .svn
+            '''))
+
+    def test_generate_with_deploy_no_write(self):
+        """Tests generate_config_data with deploy=True."""
+        self.write_file('index.php', 'index')
+        cfg_files = self.generate_config_data(deploy=True)
+
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            'Dockerfile',
+            self.preamble() + textwrap.dedent('''\
+            ENV DOCUMENT_ROOT /app
+            '''))
+
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            '.dockerignore',
+            self.license() + textwrap.dedent('''\
+            .dockerignore
+            Dockerfile
+            .git
+            .hg
+            .svn
+            '''))
+
+    def test_generate_with_existing_appinfo(self):
+        self.write_file('index.php', 'index')
+        appinfo = testutil.AppInfoFake(
+                runtime_config={'document_root': 'wordpress'},
+                entrypoint='["/bin/bash", "my-cmd.sh"]')
+        self.generate_configs(deploy=True, appinfo=appinfo)
+
+        dockerfile = self.file_contents('Dockerfile')
+        self.assertEqual(dockerfile, self.preamble() + textwrap.dedent('''\
+            ENV DOCUMENT_ROOT /app/wordpress
+
+            # Allow custom CMD
+            CMD ["/bin/bash", "my-cmd.sh"]
+            '''))
+
+        dockerignore = self.file_contents('.dockerignore')
+        self.assertEqual(dockerignore, self.license() + textwrap.dedent('''\
+            .dockerignore
+            Dockerfile
+            .git
+            .hg
+            .svn
+            '''))
+
+    def test_generate_with_existing_appinfo_no_write(self):
+        """Tests generate_config_data with fake appinfo."""
+        self.write_file('index.php', 'index')
+        appinfo = testutil.AppInfoFake(
+                runtime_config={'document_root': 'wordpress'},
+                entrypoint='["/bin/bash", "my-cmd.sh"]')
+        cfg_files = self.generate_config_data(deploy=True, appinfo=appinfo)
+
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            'Dockerfile',
+            self.preamble() + textwrap.dedent('''\
+            ENV DOCUMENT_ROOT /app/wordpress
+
+            # Allow custom CMD
+            CMD ["/bin/bash", "my-cmd.sh"]
+            '''))
+
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            '.dockerignore',
+            self.license() + textwrap.dedent('''\
+            .dockerignore
+            Dockerfile
+            .git
+            .hg
+            .svn
+            '''))
+
+    def test_generate_with_array_entrypoint(self):
+        self.write_file('index.php', 'index')
+        appinfo = testutil.AppInfoFake(
+                runtime_config={'document_root': 'wordpress'},
+                entrypoint=['/bin/bash', 'my-cmd.sh'])
+        self.generate_configs(deploy=True, appinfo=appinfo)
+
+        dockerfile = self.file_contents('Dockerfile')
+        self.assertEqual(dockerfile, self.preamble() + textwrap.dedent('''\
+            ENV DOCUMENT_ROOT /app/wordpress
+
+            # Allow custom CMD
+            CMD ["/bin/bash", "my-cmd.sh"]
+            '''))
+
+    def test_generate_with_array_entrypoint_no_write(self):
+        """Tests generate_config_data with an array entrypoint."""
+        self.write_file('index.php', 'index')
+        appinfo = testutil.AppInfoFake(
+                runtime_config={'document_root': 'wordpress'},
+                entrypoint=["/bin/bash", "my-cmd.sh"])
+        cfg_files = self.generate_config_data(deploy=True, appinfo=appinfo)
+
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            'Dockerfile',
+            self.preamble() + textwrap.dedent('''\
+            ENV DOCUMENT_ROOT /app/wordpress
+
+            # Allow custom CMD
+            CMD ["/bin/bash", "my-cmd.sh"]
+            '''))
+
+if __name__ == '__main__':
+    unittest.main()

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/python/CONTRIBUTING.md

@@ -0,0 +1,24 @@
+Want to contribute? Great! First, read this page (including the small print at the end).
+
+### Before you contribute
+Before we can use your code, you must sign the
+[Google Individual Contributor License Agreement](https://developers.google.com/open-source/cla/individual?csw=1)
+(CLA), which you can do online. The CLA is necessary mainly because you own the
+copyright to your changes, even after your contribution becomes part of our
+codebase, so we need your permission to use and distribute your code. We also
+need to be sure of various other things—for instance that you'll tell us if you
+know that your code infringes on other people's patents. You don't have to sign
+the CLA until after you've submitted your code for review and a member has
+approved it, but you must do it before we can put your code into our codebase.
+Before you start working on a larger contribution, you should get in touch with
+us first through the issue tracker with your idea so that we can help out and
+possibly guide you. Coordinating up front makes it much easier to avoid
+frustration later on.
+
+### Code reviews
+All submissions, including submissions by project members, require review. We
+use Github pull requests for this purpose.
+
+### The small print
+Contributions made by corporations are covered by a different agreement than
+the one above, the Software Grant and Corporate Contributor License Agreement.

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/python/LICENSE

@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
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+
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+
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+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/python/README.md

@@ -0,0 +1,6 @@
+
+Python Externalized Runtime
+===========================
+
+This is the python runtime definition that will soon be used by gcloud for
+generating dockerfiles for GAE.

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/python/bin/detect

@@ -0,0 +1,129 @@
+#!/usr/bin/python
+# Copyright 2015 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Language detection script.
+
+import json
+import os
+import sys
+
+# Augment the path with our library directory.
+ROOT_DIR = os.path.dirname(os.path.dirname(os.path.abspath(sys.argv[0])))
+sys.path.append(os.path.join(ROOT_DIR, 'lib'))
+
+import comm
+import versions
+
+def PythonVersionFromRuntimeConfig(runtime_config):
+  """Validate the python_version section of runtime_config, if present.
+
+  Valid values are set in versions.PYTHON_INTERPRETER_VERSION_MAP. If
+  runtime_config is false-equivalent or if the python_version field is
+  absent, versions.DEFAULT_PYTHON_INTERPRETER_VERSION is used as the
+  default.
+
+  Args:
+    runtime_config: A valid runtime_config.
+
+  Returns:
+    One of the strings from versions.PYTHON_INTERPRETER_VERSION_MAP.keys().
+
+  Raises:
+    ValueError: If the contents of the python_version field are not valid.
+  """
+  if not runtime_config:
+    python_version = None
+  else:
+    python_version = runtime_config.python_version
+
+  if not python_version:
+    return versions.DEFAULT_PYTHON_INTERPRETER_VERSION
+  elif python_version in versions.PYTHON_INTERPRETER_VERSION_MAP:
+    return python_version
+  else:
+    raise ValueError('Unsupported or invalid python version specified.')
+
+def Main(args):
+  if len(args) != 2:
+    # If we're being called incorrectly, this probably isn't happening from a
+    # framework.
+    sys.stderr.write('Invalid Usage: %s <source-root-directory>' % sys.argv[0])
+    return 1
+
+  # Get the first argument, should be the source root directory.
+  path = args[1]
+
+  # See if we have a config file and if it contains an entrypoint.
+  config = comm.get_config()
+  appinfo = config.params.appinfo
+  entrypoint = None
+  if appinfo:
+    entrypoint = appinfo.entrypoint
+
+  comm.info('Checking for Python.')
+  got_shrinkwrap = False
+
+  requirements_txt = os.path.join(path, 'requirements.txt')
+
+  got_requirements_txt = os.path.isfile(requirements_txt)
+  got_py_files = False
+
+  # check for any python files.
+  for _, _, files in os.walk(path):
+    for filename in files:
+      if filename.endswith('.py'):
+        got_py_files = True
+
+  if not got_requirements_txt and not got_py_files:
+    return 1
+
+  # Query the user for the WSGI entrypoint:
+  if not entrypoint:
+    entrypoint = comm.query_user('This looks like a Python app.  If so, please '
+                                 'enter the command to run the app in '
+                                 "production (enter nothing if it's not a "
+                                 'python app): ')
+    if not entrypoint:
+      comm.info('No entrypoint specified.  Assuming this is not a python app.')
+      return 1
+    elif appinfo:
+      comm.print_status('To avoid being asked for an entrypoint in the '
+                        'future, please add the entrypoint to your app.yaml:\n'
+                        '  entrypoint: %s' % entrypoint)
+
+  try:
+    # Get the python interpreter version. Use the default if not specified.
+    python_version = PythonVersionFromRuntimeConfig(
+        appinfo.runtime_config if appinfo else None)
+  except ValueError:
+    # The python version was selected, but set to an invalid result.
+    valid_versions = str(sorted(versions.PYTHON_INTERPRETER_VERSION_MAP.keys()))
+    comm.error('The python_version selected in runtime_config is invalid or not '
+               'supported. Please select from the following options:\n'
+               '%s', valid_versions)
+    return 1
+
+  runtime = 'custom' if config.params.custom else 'python'
+
+  comm.send_runtime_params({'entrypoint': entrypoint,
+                            'got_requirements_txt': got_requirements_txt,
+                            'python_version': python_version},
+                           appinfo={'runtime': runtime,
+                                    'entrypoint': entrypoint,
+                                    'env': 'flex'})
+  return 0
+
+if __name__ == '__main__':
+  sys.exit(Main(sys.argv))

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/python/bin/generate_configs

@@ -0,0 +1,60 @@
+#!/usr/bin/python
+# Copyright 2015 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import os
+import StringIO
+import sys
+
+# Augment the path with our library directory.
+ROOT_DIR = os.path.dirname(os.path.dirname(os.path.abspath(sys.argv[0])))
+sys.path.append(os.path.join(ROOT_DIR, 'lib'))
+
+import comm
+import versions
+
+ROOT = comm.RuntimeDefinitionRoot(ROOT_DIR)
+
+def Main(args):
+  """Generate all config files for the module."""
+
+  # Get runtime parameters from the controller.
+  config = comm.get_config()
+  params = config.params
+  runtime_data = config.runtime_data
+
+  # Customize the dockerfile.
+  if params.custom or params.deploy:
+    # Generate the Dockerfile.
+    out = StringIO.StringIO()
+    out.write(ROOT.read_file('data', 'Dockerfile.preamble'))
+    docker_python_version = versions.PYTHON_INTERPRETER_VERSION_MAP[
+        runtime_data.python_version]
+    out.write(ROOT.read_file('data', 'Dockerfile.virtualenv.template').format(
+              python_version=docker_python_version))
+
+    if runtime_data.got_requirements_txt:
+      out.write(ROOT.read_file('data', 'Dockerfile.requirements_txt'))
+
+    out.write(ROOT.read_file('data', 'Dockerfile.install_app'))
+    if runtime_data.entrypoint:
+      out.write('CMD {0}\n'.format(runtime_data.entrypoint))
+
+    comm.gen_file('Dockerfile', out.getvalue())
+
+    # Generate .dockerignore
+    comm.gen_file('.dockerignore', ROOT.read_file('data', 'dockerignore'))
+
+if __name__ == '__main__':
+  Main(sys.argv)

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/python/data/Dockerfile.install_app

@@ -0,0 +1 @@
+ADD . /app/

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/python/data/Dockerfile.preamble

@@ -0,0 +1 @@
+FROM gcr.io/google-appengine/python

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/python/data/Dockerfile.requirements_txt

@@ -0,0 +1,2 @@
+ADD requirements.txt /app/
+RUN pip install -r requirements.txt

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/python/data/Dockerfile.virtualenv.template

@@ -0,0 +1,7 @@
+LABEL python_version=python{python_version}
+RUN virtualenv --no-download /env -p python{python_version}
+
+# Set virtualenv environment variables. This is equivalent to running
+# source /env/bin/activate
+ENV VIRTUAL_ENV /env
+ENV PATH /env/bin:$PATH

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/python/data/app.yaml.template

@@ -0,0 +1,3 @@
+runtime: {runtime}
+env: flex
+entrypoint: {entrypoint}

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/python/data/dockerignore

@@ -0,0 +1,19 @@
+# Copyright 2015 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+.dockerignore
+Dockerfile
+.git
+.hg
+.svn

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/python/lib/comm.py

@@ -0,0 +1,174 @@
+# Copyright 2015 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Note: this file is part of the sdk-ext-runtime package.  It gets copied into
+# individual GAE runtime modules so that they can be easily deployed.
+
+import json
+import os
+import sys
+
+
+class JSONObject(object):
+    """Wrapper for a JSON object.
+
+    Presents a JSON object as a python object (where fields are attributes)
+    instead of a dictionary.  Undefined attributes produce a value of None
+    instead of an AttributeError.
+
+    Note that attribute names beginning with an underscore are excluded.
+    """
+
+    def __getattr__(self, attr):
+        return None
+
+    def to_dict(self):
+        result = {}
+        for attr, val in self.__dict__.iteritems():
+            if not attr.startswith('_'):
+                result[attr] = _make_serializable(val)
+        return result
+
+    # Alias old style naming so this interoperates with gcloud's appinfo.
+    ToDict = to_dict
+
+
+def _make_serializable(obj):
+    """Converts objects to serializable form."""
+    if isinstance(obj, JSONObject):
+        return obj.to_dict()
+    else:
+        return obj
+
+
+def _write_msg(**message):
+    """Write a message to standard output.
+
+    Args:
+        **message: ({str: object, ...}) A JSON message encoded in keyword
+            arguments.
+    """
+    json.dump(message, sys.stdout, default=_make_serializable)
+    sys.stdout.write('\n')
+    sys.stdout.flush()
+
+
+def error(message, *args):
+    _write_msg(type='error', message=message % args)
+
+
+def warn(message, *args):
+    _write_msg(type='warn', message=message % args)
+
+
+def info(message, *args):
+    _write_msg(type='info', message=message % args)
+
+
+def debug(message, *args):
+    _write_msg(type='debug', message=message % args)
+
+
+def print_status(message, *args):
+    _write_msg(type='print_status', message=message % args)
+
+
+def send_runtime_params(params, appinfo=None):
+    """Send runtime parameters back to the controller.
+
+    Args:
+        params: ({str: object, ...}) Set of runtime parameters.  Must be
+            json-encodable.
+        appinfo: ({str: object, ...} or None) Contents of the app.yaml file to
+            be produced by the runtime definition.  Required fields may be
+            added to this by the framework, the only thing an application
+            needs to provide is the "runtime" field and any additional data
+            fields.
+    """
+    if appinfo is not None:
+        _write_msg(type='runtime_parameters', runtime_data=params,
+                   appinfo=appinfo)
+    else:
+        _write_msg(type='runtime_parameters', runtime_data=params)
+
+
+def get_config():
+    """Request runtime parameters from the controller.
+
+    Returns:
+      (object) The runtime parameters represented as an object.
+    """
+    _write_msg(type='get_config')
+    return dict_to_object(json.loads(sys.stdin.readline()))
+
+
+def dict_to_object(json_dict):
+    """Converts a dictionary to a python object.
+
+    Converts key-values to attribute-values.
+
+    Args:
+      json_dict: ({str: object, ...})
+
+    Returns:
+      (JSONObject)
+    """
+    obj = JSONObject()
+    for name, val in json_dict.iteritems():
+        if isinstance(val, dict):
+          val = dict_to_object(val)
+        setattr(obj, name, val)
+    return obj
+
+
+class RuntimeDefinitionRoot(object):
+    """Abstraction that allows us to access files in the runtime definiton."""
+
+    def __init__(self, path):
+        self.root = path
+
+    def read_file(self, *name):
+        with open(os.path.join(self.root, *name)) as src:
+            return src.read()
+
+
+def gen_file(name, contents):
+    """Generate the file.
+
+    This writes the file to be generated back to the controller.
+
+    Args:
+        name: (str) The UNIX-style relative path of the file.
+        contents: (str) The complete file contents.
+    """
+    _write_msg(type='gen_file', filename=name, contents=contents)
+
+
+def query_user(prompt, default=None):
+    """Query the user for data.
+
+    Args:
+        prompt: (str) Prompt to display to the user.
+        default: (str or None) Default value to use if the user doesn't input
+            anything.
+
+    Returns:
+        (str) Value returned by the user.
+    """
+    kwargs = {}
+    kwargs['prompt'] = prompt
+    if default is not None:
+        kwargs['default'] = default
+    _write_msg(type='query_user', **kwargs)
+    return json.loads(sys.stdin.readline())['result']

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/python/lib/versions.py

@@ -0,0 +1,28 @@
+# Copyright 2016 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Table of supported Python interpreter versions."""
+
+# Missing python_version defaults to this
+DEFAULT_PYTHON_INTERPRETER_VERSION = '2'
+
+# Map from app.yaml "python_version" to Dockerfile.virtualenv.template
+# {python_version}
+PYTHON_INTERPRETER_VERSION_MAP = {
+    '2': '',
+    '3': '3.6',
+    '3.4': '3.4',
+    '3.5': '3.5',
+    '3.6': '3.6',
+}

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/python/runtime.yaml

@@ -0,0 +1,8 @@
+author: mmuller@google.com
+name: python
+description: Official Google Python runtime definition.
+api_version: 0.1
+detect:
+  python: bin/detect
+generate_configs:
+  python: bin/generate_configs

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/python/test/runtime_test.py

@@ -0,0 +1,449 @@
+# Copyright 2016 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Note: this file is part of the sdk-ext-runtime package.  It gets copied into
+# individual GAE runtime modules so that they can be easily deployed.
+
+import os
+import textwrap
+import unittest
+
+from gae_ext_runtime import comm
+from gae_ext_runtime import ext_runtime
+from gae_ext_runtime import testutil
+
+ROOT_DIR = os.path.dirname(os.path.dirname(__file__))
+ROOT = comm.RuntimeDefinitionRoot(ROOT_DIR)
+
+
+class FakeExecutionEnvironment(ext_runtime.DefaultExecutionEnvironment):
+
+    def CanPrompt(self):
+        return True
+
+    def PromptResponse(self, message):
+        return 'my_entrypoint'
+
+
+class RuntimeTests(testutil.TestBase):
+
+    def setUp(self):
+        # This has to come before RuntimeTests.setUp()
+        self.runtime_def_root = ROOT_DIR
+        super(RuntimeTests, self).setUp()
+
+        self.DOCKERFILE_PREAMBLE = (
+            ROOT.read_file('data', 'Dockerfile.preamble'))
+        self.DOCKERFILE_VIRTUALENV_TEMPLATE = (
+            ROOT.read_file('data',
+                           'Dockerfile.virtualenv.template'))
+        self.DOCKERFILE_REQUIREMENTS_TXT = (
+            ROOT.read_file('data', 'Dockerfile.requirements_txt'))
+        self.DOCKERFILE_INSTALL_APP = (
+            ROOT.read_file('data', 'Dockerfile.install_app'))
+        self.set_execution_environment(FakeExecutionEnvironment())
+
+    # XXX Move this to testutil.
+    def read_file(self, *args):
+        """Read the file, return the contents.
+
+        Args:
+            *args: A set of path components (see full_path()) relative to the
+                temporary directory.
+        """
+        with open(os.path.join(self.temp_path, *args)) as fp:
+            return fp.read()
+
+    def test_python(self):
+        self.write_file('requirements.txt', 'requirements')
+        self.generate_configs(deploy=True)
+        self.assert_file_exists_with_contents(
+            'Dockerfile',
+            self.DOCKERFILE_PREAMBLE +
+            self.DOCKERFILE_VIRTUALENV_TEMPLATE.format(python_version='') +
+            self.DOCKERFILE_REQUIREMENTS_TXT +
+            self.DOCKERFILE_INSTALL_APP +
+            'CMD my_entrypoint\n')
+
+        self.assertEqual(set(os.listdir(self.temp_path)),
+                         {'requirements.txt',
+                          'app.yaml',
+                          'Dockerfile',
+                          '.dockerignore'})
+
+    def test_python_no_write(self):
+        """Tests generate_config_data with only requirements.txt.
+
+        app.yaml should be written to disk, Dockerfile and .dockerignore
+        returned by the method in memory. Tests that Dockerfile contents
+        are correct.
+        """
+        self.write_file('requirements.txt', 'requirements')
+        cfg_files = self.generate_config_data(deploy=True)
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            'Dockerfile',
+            self.DOCKERFILE_PREAMBLE +
+            self.DOCKERFILE_VIRTUALENV_TEMPLATE.format(python_version='') +
+            self.DOCKERFILE_REQUIREMENTS_TXT +
+            self.DOCKERFILE_INSTALL_APP +
+            'CMD my_entrypoint\n')
+
+        self.assertEqual(set(os.listdir(self.temp_path)),
+                         {'requirements.txt', 'app.yaml'})
+        self.assertEqual({f.filename for f in cfg_files},
+                         {'Dockerfile', '.dockerignore'})
+
+    def test_python_no_requirements_txt(self):
+        self.write_file('foo.py', '# python code')
+        self.generate_configs(custom=True)
+        self.assert_file_exists_with_contents(
+            'Dockerfile',
+            self.DOCKERFILE_PREAMBLE +
+            self.DOCKERFILE_VIRTUALENV_TEMPLATE.format(
+                python_version='') +
+            self.DOCKERFILE_INSTALL_APP +
+            'CMD my_entrypoint\n')
+
+        self.assertEqual(set(os.listdir(self.temp_path)),
+                         {'foo.py', 'app.yaml', 'Dockerfile', '.dockerignore'})
+
+    def test_python_no_requirements_txt_no_write(self):
+        """Tests generate_config_data with no requirements.txt file."""
+        self.write_file('foo.py', '# python code')
+        cfg_files = self.generate_config_data(custom=True)
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            'Dockerfile',
+            self.DOCKERFILE_PREAMBLE +
+            self.DOCKERFILE_VIRTUALENV_TEMPLATE.format(
+                python_version='') +
+            self.DOCKERFILE_INSTALL_APP +
+            'CMD my_entrypoint\n')
+
+        self.assertEqual(set(os.listdir(self.temp_path)),
+                         {'foo.py', 'app.yaml'})
+        self.assertEqual({f.filename for f in cfg_files},
+                         {'Dockerfile', '.dockerignore'})
+
+    def test_python_with_app_yaml(self):
+        self.write_file('test.py', 'test file')
+        config = testutil.AppInfoFake(
+            runtime='python',
+            entrypoint='run_me_some_python!')
+        self.generate_configs(appinfo=config, deploy=True)
+        self.assert_file_exists_with_contents(
+            'Dockerfile',
+            self.DOCKERFILE_PREAMBLE +
+            self.DOCKERFILE_VIRTUALENV_TEMPLATE.format(
+                python_version='') +
+            self.DOCKERFILE_INSTALL_APP +
+            'CMD run_me_some_python!\n')
+
+        self.assertEqual(set(os.listdir(self.temp_path)),
+                         {'test.py', 'Dockerfile', '.dockerignore'})
+
+    def test_python_with_app_yaml_no_write(self):
+        """Tests generate_config_data with fake appinfo."""
+        self.write_file('test.py', 'test file')
+        config = testutil.AppInfoFake(
+            runtime='python',
+            entrypoint='run_me_some_python!')
+        cfg_files = self.generate_config_data(appinfo=config, deploy=True)
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            'Dockerfile',
+            self.DOCKERFILE_PREAMBLE +
+            self.DOCKERFILE_VIRTUALENV_TEMPLATE.format(
+                python_version='') +
+            self.DOCKERFILE_INSTALL_APP +
+            'CMD run_me_some_python!\n')
+
+        self.assertEqual(set(os.listdir(self.temp_path)),
+                         {'test.py'})
+        self.assertEqual({f.filename for f in cfg_files},
+                         {'Dockerfile', '.dockerignore'})
+
+    def test_python_app_yaml_no_entrypoint(self):
+        self.write_file('test.py', 'test file')
+        config = testutil.AppInfoFake(runtime='python')
+        self.generate_configs(appinfo=config, deploy=True)
+        self.assert_file_exists_with_contents(
+            'Dockerfile',
+            self.DOCKERFILE_PREAMBLE +
+            self.DOCKERFILE_VIRTUALENV_TEMPLATE.format(
+                python_version='') +
+            self.DOCKERFILE_INSTALL_APP +
+            'CMD my_entrypoint\n')
+
+        self.assertEqual(set(os.listdir(self.temp_path)),
+                         {'test.py', 'Dockerfile', '.dockerignore'})
+
+    def test_python_app_yaml_no_entrypoint_no_write(self):
+        """Tests generate_config_data with fake appinfo, no entrypoint."""
+        self.write_file('test.py', 'test file')
+        config = testutil.AppInfoFake(runtime='python')
+        cfg_files = self.generate_config_data(appinfo=config, deploy=True)
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            'Dockerfile',
+            self.DOCKERFILE_PREAMBLE +
+            self.DOCKERFILE_VIRTUALENV_TEMPLATE.format(
+                python_version='') +
+            self.DOCKERFILE_INSTALL_APP +
+            'CMD my_entrypoint\n')
+
+        self.assertEqual(set(os.listdir(self.temp_path)),
+                         {'test.py'})
+        self.assertEqual({f.filename for f in cfg_files},
+                         {'Dockerfile', '.dockerignore'})
+
+    def test_python_with_runtime_config_but_no_python_version(self):
+        self.write_file('test.py', 'test file')
+        config = testutil.AppInfoFake(runtime='python',
+                                      entrypoint='run_me_some_python!')
+        self.generate_configs(appinfo=config, deploy=True)
+        self.assert_file_exists_with_contents(
+            'Dockerfile',
+            self.DOCKERFILE_PREAMBLE +
+            self.DOCKERFILE_VIRTUALENV_TEMPLATE.format(
+                python_version='') +
+            self.DOCKERFILE_INSTALL_APP +
+            'CMD run_me_some_python!\n')
+        self.assertEqual(set(os.listdir(self.temp_path)),
+                         {'test.py', '.dockerignore', 'Dockerfile'})
+
+    def test_python_with_runtime_config_but_no_python_version_no_write(self):
+        """Tests generate_config_data with no python version in appinfo."""
+        self.write_file('test.py', 'test file')
+        config = testutil.AppInfoFake(runtime='python',
+                                      entrypoint='run_me_some_python!')
+        cfg_files = self.generate_config_data(appinfo=config, deploy=True)
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            'Dockerfile',
+            self.DOCKERFILE_PREAMBLE +
+            self.DOCKERFILE_VIRTUALENV_TEMPLATE.format(
+                python_version='') +
+            self.DOCKERFILE_INSTALL_APP +
+            'CMD run_me_some_python!\n')
+
+        self.assertEqual(set(os.listdir(self.temp_path)),
+                         {'test.py'})
+        self.assertEqual({f.filename for f in cfg_files},
+                         {'Dockerfile', '.dockerignore'})
+
+    def test_python_with_explicit_python2(self):
+        self.write_file('test.py', 'test file')
+        config = testutil.AppInfoFake(
+            runtime='python',
+            entrypoint='run_me_some_python!',
+            runtime_config=dict(python_version='2'))
+        self.generate_configs(appinfo=config, deploy=True)
+        self.assert_file_exists_with_contents(
+            'Dockerfile',
+            self.DOCKERFILE_PREAMBLE +
+            self.DOCKERFILE_VIRTUALENV_TEMPLATE.format(
+                python_version='') +
+            self.DOCKERFILE_INSTALL_APP +
+            'CMD run_me_some_python!\n')
+
+        self.assertEqual(set(os.listdir(self.temp_path)),
+                         {'test.py', '.dockerignore', 'Dockerfile'})
+
+    def test_python_with_explicit_python2_no_write(self):
+        """Tests generate_config_data with Python version '2' in appinfo."""
+        self.write_file('test.py', 'test file')
+        config = testutil.AppInfoFake(
+            runtime='python',
+            entrypoint='run_me_some_python!',
+            runtime_config=dict(python_version='2'))
+        cfg_files = self.generate_config_data(appinfo=config, deploy=True)
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            'Dockerfile',
+            self.DOCKERFILE_PREAMBLE +
+            self.DOCKERFILE_VIRTUALENV_TEMPLATE.format(
+                python_version='') +
+            self.DOCKERFILE_INSTALL_APP +
+            'CMD run_me_some_python!\n')
+
+        self.assertEqual(set(os.listdir(self.temp_path)),
+                         {'test.py'})
+        self.assertEqual({f.filename for f in cfg_files},
+                         {'Dockerfile', '.dockerignore'})
+
+    def test_python_with_explicit_python3(self):
+        self.write_file('test.py', 'test file')
+        config = testutil.AppInfoFake(runtime='python',
+                                      entrypoint='run_me_some_python!',
+                                      runtime_config=dict(python_version='3'))
+        self.generate_configs(appinfo=config, deploy=True)
+        self.assert_file_exists_with_contents(
+            'Dockerfile',
+            self.DOCKERFILE_PREAMBLE +
+            self.DOCKERFILE_VIRTUALENV_TEMPLATE.format(
+                python_version='3.6') +
+            self.DOCKERFILE_INSTALL_APP +
+            'CMD run_me_some_python!\n')
+
+        self.assertEqual(set(os.listdir(self.temp_path)),
+                         {'test.py', '.dockerignore', 'Dockerfile'})
+
+    def test_python_with_explicit_python3_no_write(self):
+        """Tests generate_config_data with python version '3' in appinfo."""
+        self.write_file('test.py', 'test file')
+        config = testutil.AppInfoFake(runtime='python',
+                                      entrypoint='run_me_some_python!',
+                                      runtime_config=dict(python_version='3'))
+        cfg_files = self.generate_config_data(appinfo=config, deploy=True)
+        self.assert_genfile_exists_with_contents(
+            cfg_files,
+            'Dockerfile',
+            self.DOCKERFILE_PREAMBLE +
+            self.DOCKERFILE_VIRTUALENV_TEMPLATE.format(
+                python_version='3.6') +
+            self.DOCKERFILE_INSTALL_APP +
+            'CMD run_me_some_python!\n')
+
+        self.assertEqual(set(os.listdir(self.temp_path)),
+                         {'test.py'})
+        self.assertEqual({f.filename for f in cfg_files},
+                         {'Dockerfile', '.dockerignore'})
+
+    def test_python_with_explicit_python34(self):
+        self.write_file('test.py', 'test file')
+        config = testutil.AppInfoFake(runtime='python',
+                                      entrypoint='run_me_some_python!',
+                                      runtime_config=dict(python_version='3.4'))
+        self.generate_configs(appinfo=config, deploy=True)
+        self.assert_file_exists_with_contents(
+            'Dockerfile',
+            self.DOCKERFILE_PREAMBLE +
+            self.DOCKERFILE_VIRTUALENV_TEMPLATE.format(
+                python_version='3.4') +
+            self.DOCKERFILE_INSTALL_APP +
+            'CMD run_me_some_python!\n')
+
+        self.assertEqual(set(os.listdir(self.temp_path)),
+                         {'test.py', '.dockerignore', 'Dockerfile'})
+
+    def test_python_with_explicit_python35(self):
+        self.write_file('test.py', 'test file')
+        config = testutil.AppInfoFake(runtime='python',
+                                      entrypoint='run_me_some_python!',
+                                      runtime_config=dict(python_version='3.5'))
+        self.generate_configs(appinfo=config, deploy=True)
+        self.assert_file_exists_with_contents(
+            'Dockerfile',
+            self.DOCKERFILE_PREAMBLE +
+            self.DOCKERFILE_VIRTUALENV_TEMPLATE.format(
+                python_version='3.5') +
+            self.DOCKERFILE_INSTALL_APP +
+            'CMD run_me_some_python!\n')
+
+        self.assertEqual(set(os.listdir(self.temp_path)),
+                         {'test.py', '.dockerignore', 'Dockerfile'})
+
+    def test_python_with_explicit_python36(self):
+        self.write_file('test.py', 'test file')
+        config = testutil.AppInfoFake(runtime='python',
+                                      entrypoint='run_me_some_python!',
+                                      runtime_config=dict(python_version='3.6'))
+        self.generate_configs(appinfo=config, deploy=True)
+        self.assert_file_exists_with_contents(
+            'Dockerfile',
+            self.DOCKERFILE_PREAMBLE +
+            self.DOCKERFILE_VIRTUALENV_TEMPLATE.format(
+                python_version='3.6') +
+            self.DOCKERFILE_INSTALL_APP +
+            'CMD run_me_some_python!\n')
+
+        self.assertEqual(set(os.listdir(self.temp_path)),
+                         {'test.py', '.dockerignore', 'Dockerfile'})
+
+    def test_python_with_invalid_version(self):
+        self.write_file('test.py', 'test file')
+        config = testutil.AppInfoFake(
+            runtime='python',
+            entrypoint='run_me_some_python!',
+            runtime_config=dict(python_version='invalid_version'))
+        self.assertRaises(testutil.InvalidRuntime,
+                          self.generate_config_data, appinfo=config)
+
+    def test_python_custom_runtime(self):
+        self.write_file('test.py', 'test file')
+        self.generate_configs(custom=True)
+        with open(os.path.join(self.temp_path, 'app.yaml')) as f:
+            app_yaml_contents = f.read()
+        self.assertMultiLineEqual(
+            app_yaml_contents,
+            textwrap.dedent("""\
+                entrypoint: my_entrypoint
+                env: flex
+                runtime: custom
+                """))
+        self.assertEqual(set(os.listdir(self.temp_path)),
+                         {'test.py', 'app.yaml', '.dockerignore', 'Dockerfile'})
+
+    def test_python_custom_runtime_no_write(self):
+        """Tests generate_config_data with custom=True."""
+        self.write_file('test.py', 'test file')
+        cfg_files = self.generate_config_data(custom=True)
+        with open(os.path.join(self.temp_path, 'app.yaml')) as f:
+            app_yaml_contents = f.read()
+        self.assertMultiLineEqual(
+            app_yaml_contents,
+            textwrap.dedent("""\
+                entrypoint: my_entrypoint
+                env: flex
+                runtime: custom
+                """))
+        self.assertEqual(set(os.listdir(self.temp_path)),
+                         {'test.py', 'app.yaml'})
+        self.assertEqual({f.filename for f in cfg_files},
+                         {'Dockerfile', '.dockerignore'})
+
+    def test_python_custom_runtime_field(self):
+        """Verify that a runtime field of "custom" works."""
+        self.write_file('test.py', 'test file')
+        config = testutil.AppInfoFake(runtime='custom',
+                                      entrypoint='my_entrypoint')
+        self.assertTrue(self.generate_configs(appinfo=config, deploy=True))
+
+    def test_python_label(self):
+        """Test that a LABEL directive is added to the Dockerfile"""
+        self.write_file('test.py', 'test file')
+        config = testutil.AppInfoFake(
+            runtime='python',
+            entrypoint='run_me_some_python!',
+            runtime_config=dict(python_version='3'))
+        cfg_files = self.generate_config_data(appinfo=config, deploy=True)
+        dockerfile = [f for f in cfg_files if f.filename == 'Dockerfile'][0]
+        self.assertIn('LABEL python_version=python3.6\n', dockerfile.contents)
+
+    # NOTE: this test is also irrelevant to the runtime, convert it to
+    # something appropriate to the framework.
+#    def test_python_non_interactive(self):
+#        self.write_file('test.py', 'blah')
+#        with mock.patch.object(console_io, 'CanPrompt', lambda: False):
+#            with mock.patch.object(fingerprinting,
+#                                   'GetNonInteractiveErrorMessage',
+#                                   lambda: 'xx123unlikely'):
+#
+#        fingerprinter.IdentifyDirectory(self.temp_path)
+#        self.AssertLogContains('xx123unlikely')
+
+if __name__ == '__main__':
+    unittest.main()

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/ruby/CONTRIBUTING.md

@@ -0,0 +1,24 @@
+Want to contribute? Great! First, read this page (including the small print at the end).
+
+### Before you contribute
+Before we can use your code, you must sign the
+[Google Individual Contributor License Agreement](https://developers.google.com/open-source/cla/individual?csw=1)
+(CLA), which you can do online. The CLA is necessary mainly because you own the
+copyright to your changes, even after your contribution becomes part of our
+codebase, so we need your permission to use and distribute your code. We also
+need to be sure of various other things—for instance that you'll tell us if you
+know that your code infringes on other people's patents. You don't have to sign
+the CLA until after you've submitted your code for review and a member has
+approved it, but you must do it before we can put your code into our codebase.
+Before you start working on a larger contribution, you should get in touch with
+us first through the issue tracker with your idea so that we can help out and
+possibly guide you. Coordinating up front makes it much easier to avoid
+frustration later on.
+
+### Code reviews
+All submissions, including submissions by project members, require review. We
+use Github pull requests for this purpose.
+
+### The small print
+Contributions made by corporations are covered by a different agreement than
+the one above, the Software Grant and Corporate Contributor License Agreement.

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/ruby/LICENSE

@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
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+
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+
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+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
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+
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+   See the License for the specific language governing permissions and
+   limitations under the License.

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/ruby/README.md

@@ -0,0 +1,25 @@
+
+Ruby Externalized Runtime
+============================
+
+This is the Ruby runtime definition that is used by gcloud to generate
+Dockerfiles for GAE.
+
+How to Run Tests
+============================
+
+In order to test your runtime changes you will need to run the following
+commands.
+
+```
+$ sudo apt-get install python-pip
+$ sudo pip install virtualenv
+$ cd $CODE_DIRECTORY
+$ git clone $GIT_HOST/ext-runtime-sdk
+$ virtualenv test_env
+$ . test_env/bin/activate
+(test_env)$ pip install ext-runtime-sdk/
+(test_env)$ pip install PyYaml appengine-config-transformer
+(test_env)$ cd gae-xrt-ruby
+(test_env)$ python test/runtime_test.py
+```

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/ruby/bin/detect

@@ -0,0 +1,81 @@
+#!/usr/bin/python
+# Copyright 2016 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Ruby detection script.
+
+import glob
+import json
+import os
+import sys
+
+# HACK: Import a vendored gae_ext_runtime library until we have a better
+# solution.
+sys.path.append(os.path.join(
+    os.path.dirname(os.path.dirname(os.path.abspath(sys.argv[0]))), 'lib'))
+
+from gae_ext_runtime import comm
+
+def main(args):
+    if len(args) != 2:
+        print 'Invalid Usage: {} <source-root-directory>'.format(args[0])
+        return 1
+
+    directory = args[1]
+
+    # The directory is considered a Ruby application if any are true:
+    #  * The top-level directory contains a Gemfile
+    #  * The top-level directory contains a config.ru
+    #  * The top-level directory contains a file ending in .rb
+    gemfile = os.path.isfile(os.path.join(directory, 'Gemfile'))
+    configru = os.path.isfile(os.path.join(directory, 'config.ru'))
+    ruby_file = glob.glob(os.path.join(directory, '*.rb'))
+
+    if not gemfile and not configru and not ruby_file:
+        return 1
+
+    try:
+        with open(os.path.join(directory, '.ruby-version')) as f:
+          ruby_version = f.read().strip()
+    except IOError:
+        ruby_version = ''
+
+    config = comm.get_config()
+    appinfo = config.params.appinfo
+
+    if appinfo and appinfo.entrypoint:
+        entrypoint = appinfo.entrypoint
+    else:
+        default = 'bundle exec rackup -p $PORT'
+        prompt = ('This looks like a Ruby application. Please confirm the '
+                  'command to run as the entrypoint:')
+        # Currently query_user does not seem to return the default on empty
+        # response, so do the defaulting ourselves until that is fixed.
+        entrypoint = comm.query_user(prompt, default) or default
+
+    runtime_data = {
+        'ruby_version': ruby_version,
+        'entrypoint': entrypoint,
+    }
+    appinfo =  {
+        'runtime': 'custom' if config.params.custom else 'ruby',
+        'env': 'flex',
+        'entrypoint': entrypoint,
+    }
+    comm.send_runtime_params(runtime_data, appinfo=appinfo)
+
+    return 0
+
+if __name__ == '__main__':
+    sys.exit(main(sys.argv))

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/ruby/bin/generate_configs

@@ -0,0 +1,56 @@
+#!/usr/bin/python
+# Copyright 2016 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import json
+import os
+import sys
+
+# HACK: Import a vendored gae_ext_runtime library until we have a better
+# solution.
+sys.path.append(os.path.join(
+    os.path.dirname(os.path.dirname(os.path.abspath(sys.argv[0]))), 'lib'))
+
+from gae_ext_runtime import comm
+
+def main(args):
+    config = comm.get_config()
+    params = config.params
+    if not params.custom and not params.deploy:
+        return 0
+
+    entrypoint = config.runtime_data.entrypoint
+    ruby_version = config.runtime_data.ruby_version
+    base_image_tag = os.environ.get('GAE_RUBY_BASE_IMAGE_TAG') or 'latest'
+
+    # Locate template directory.
+    template_dir = os.path.join(os.path.dirname(__file__), '..', 'templates')
+
+    # Generate Dockerfile
+    path = os.path.join(template_dir, 'Dockerfile.template')
+    with open(path, 'r') as f:
+        data = f.read()
+
+        comm.gen_file('Dockerfile', data.format(ruby_version=ruby_version,
+            entrypoint=entrypoint, base_image_tag=base_image_tag))
+
+    # Generate .dockerignore
+    path = os.path.join(template_dir, 'dockerignore.template')
+    with open(path, 'r') as f:
+        comm.gen_file('.dockerignore', f.read())
+
+    return 0
+
+if __name__ == '__main__':
+    sys.exit(main(sys.argv))

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/ruby/lib/gae_ext_runtime/__init__.py

@@ -0,0 +1,2 @@
+
+

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/ruby/lib/gae_ext_runtime/comm.py

@@ -0,0 +1,174 @@
+# Copyright 2015 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Note: this file is part of the sdk-ext-runtime package.  It gets copied into
+# individual GAE runtime modules so that they can be easily deployed.
+
+import json
+import os
+import sys
+
+
+class JSONObject(object):
+    """Wrapper for a JSON object.
+
+    Presents a JSON object as a python object (where fields are attributes)
+    instead of a dictionary.  Undefined attributes produce a value of None
+    instead of an AttributeError.
+
+    Note that attribute names beginning with an underscore are excluded.
+    """
+
+    def __getattr__(self, attr):
+        return None
+
+    def to_dict(self):
+        result = {}
+        for attr, val in self.__dict__.iteritems():
+            if not attr.startswith('_'):
+                result[attr] = _make_serializable(val)
+        return result
+
+    # Alias old style naming so this interoperates with gcloud's appinfo.
+    ToDict = to_dict
+
+
+def _make_serializable(obj):
+    """Converts objects to serializable form."""
+    if isinstance(obj, JSONObject):
+        return obj.to_dict()
+    else:
+        return obj
+
+
+def _write_msg(**message):
+    """Write a message to standard output.
+
+    Args:
+        **message: ({str: object, ...}) A JSON message encoded in keyword
+            arguments.
+    """
+    json.dump(message, sys.stdout, default=_make_serializable)
+    sys.stdout.write('\n')
+    sys.stdout.flush()
+
+
+def error(message, *args):
+    _write_msg(type='error', message=message % args)
+
+
+def warn(message, *args):
+    _write_msg(type='warn', message=message % args)
+
+
+def info(message, *args):
+    _write_msg(type='info', message=message % args)
+
+
+def debug(message, *args):
+    _write_msg(type='debug', message=message % args)
+
+
+def print_status(message, *args):
+    _write_msg(type='print_status', message=message % args)
+
+
+def send_runtime_params(params, appinfo=None):
+    """Send runtime parameters back to the controller.
+
+    Args:
+        params: ({str: object, ...}) Set of runtime parameters.  Must be
+            json-encodable.
+        appinfo: ({str: object, ...} or None) Contents of the app.yaml file to
+            be produced by the runtime definition.  Required fields may be
+            added to this by the framework, the only thing an application
+            needs to provide is the "runtime" field and any additional data
+            fields.
+    """
+    if appinfo is not None:
+        _write_msg(type='runtime_parameters', runtime_data=params,
+                   appinfo=appinfo)
+    else:
+        _write_msg(type='runtime_parameters', runtime_data=params)
+
+
+def get_config():
+    """Request runtime parameters from the controller.
+
+    Returns:
+      (object) The runtime parameters represented as an object.
+    """
+    _write_msg(type='get_config')
+    return dict_to_object(json.loads(sys.stdin.readline()))
+
+
+def dict_to_object(json_dict):
+    """Converts a dictionary to a python object.
+
+    Converts key-values to attribute-values.
+
+    Args:
+      json_dict: ({str: object, ...})
+
+    Returns:
+      (JSONObject)
+    """
+    obj = JSONObject()
+    for name, val in json_dict.iteritems():
+        if isinstance(val, dict):
+          val = dict_to_object(val)
+        setattr(obj, name, val)
+    return obj
+
+
+class RuntimeDefinitionRoot(object):
+    """Abstraction that allows us to access files in the runtime definiton."""
+
+    def __init__(self, path):
+        self.root = path
+
+    def read_file(self, *name):
+        with open(os.path.join(self.root, *name)) as src:
+            return src.read()
+
+
+def gen_file(name, contents):
+    """Generate the file.
+
+    This writes the file to be generated back to the controller.
+
+    Args:
+        name: (str) The UNIX-style relative path of the file.
+        contents: (str) The complete file contents.
+    """
+    _write_msg(type='gen_file', filename=name, contents=contents)
+
+
+def query_user(prompt, default=None):
+    """Query the user for data.
+
+    Args:
+        prompt: (str) Prompt to display to the user.
+        default: (str or None) Default value to use if the user doesn't input
+            anything.
+
+    Returns:
+        (str) Value returned by the user.
+    """
+    kwargs = {}
+    kwargs['prompt'] = prompt
+    if default is not None:
+        kwargs['default'] = default
+    _write_msg(type='query_user', **kwargs)
+    return json.loads(sys.stdin.readline())['result']

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/ruby/runtime.yaml

@@ -0,0 +1,8 @@
+author: adamtanner@google.com
+name: ruby
+description: Official Google Ruby runtime definition.
+api_version: 0.2
+detect:
+  python: bin/detect
+generate_configs:
+  python: bin/generate_configs

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/ruby/templates/Dockerfile.template

@@ -0,0 +1,54 @@
+# This Dockerfile for a Ruby application was generated by gcloud.
+
+# The base Dockerfile installs:
+# * A number of packages needed by the Ruby runtime and by gems
+#   commonly used in Ruby web apps (such as libsqlite3)
+# * A recent version of NodeJS
+# * A recent version of the standard Ruby runtime to use by default
+# * The bundler gem
+FROM gcr.io/google-appengine/ruby:{base_image_tag}
+
+# If your application requires a specific ruby version (compatible with rbenv),
+# set it here. Leave blank to use the currently recommended default.
+ARG REQUESTED_RUBY_VERSION="{ruby_version}"
+
+# Install any requested ruby if not already preinstalled by the base image.
+# Tries installing a prebuilt package first, then falls back to a source build.
+RUN if test -n "$REQUESTED_RUBY_VERSION" -a \
+        ! -x /rbenv/versions/$REQUESTED_RUBY_VERSION/bin/ruby; then \
+      (apt-get update -y \
+        && apt-get install -y -q gcp-ruby-$REQUESTED_RUBY_VERSION) \
+      || (cd /rbenv/plugins/ruby-build \
+        && git pull \
+        && rbenv install -s $REQUESTED_RUBY_VERSION) \
+      && rbenv global $REQUESTED_RUBY_VERSION \
+      && gem install -q --no-rdoc --no-ri bundler --version $BUNDLER_VERSION \
+      && apt-get clean \
+      && rm -f /var/lib/apt/lists/*_*; \
+    fi
+ENV RBENV_VERSION=${{REQUESTED_RUBY_VERSION:-$RBENV_VERSION}}
+
+# Copy the application files.
+COPY . /app/
+
+# Install required gems if Gemfile.lock is present.
+RUN if test -f Gemfile.lock; then \
+      bundle install --deployment --without="development test" \
+      && rbenv rehash; \
+    fi
+
+# Temporary. Will be moved to base image later.
+ENV RACK_ENV=production \
+    RAILS_ENV=production \
+    RAILS_SERVE_STATIC_FILES=true
+
+# Run asset pipeline if we're in a Rails app.
+RUN if test -d app/assets -a -f config/application.rb; then \
+      bundle exec rake assets:precompile || true; \
+    fi
+
+# BUG: Reset entrypoint to override base image.
+ENTRYPOINT []
+
+# Start application on port $PORT.
+CMD {entrypoint}

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/ruby/templates/dockerignore.template

@@ -0,0 +1,5 @@
+.dockerignore
+Dockerfile
+.git
+.hg
+.svn

gcloud auth application-default login/google-cloud-sdk/platform/ext-runtime/ruby/test/runtime_test.py

@@ -0,0 +1,462 @@
+#!/usr/bin/python
+# Copyright 2016 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import os
+import unittest
+
+from gae_ext_runtime import testutil
+
+RUNTIME_DEF_ROOT = os.path.dirname(os.path.dirname(__file__))
+
+
+DOCKERFILE_TEXT = '''\
+# This Dockerfile for a Ruby application was generated by gcloud.
+
+# The base Dockerfile installs:
+# * A number of packages needed by the Ruby runtime and by gems
+#   commonly used in Ruby web apps (such as libsqlite3)
+# * A recent version of NodeJS
+# * A recent version of the standard Ruby runtime to use by default
+# * The bundler gem
+FROM gcr.io/google-appengine/ruby:{base_image_tag}
+
+# If your application requires a specific ruby version (compatible with rbenv),
+# set it here. Leave blank to use the currently recommended default.
+ARG REQUESTED_RUBY_VERSION="{ruby_version}"
+
+# Install any requested ruby if not already preinstalled by the base image.
+# Tries installing a prebuilt package first, then falls back to a source build.
+RUN if test -n "$REQUESTED_RUBY_VERSION" -a \\
+        ! -x /rbenv/versions/$REQUESTED_RUBY_VERSION/bin/ruby; then \\
+      (apt-get update -y \\
+        && apt-get install -y -q gcp-ruby-$REQUESTED_RUBY_VERSION) \\
+      || (cd /rbenv/plugins/ruby-build \\
+        && git pull \\
+        && rbenv install -s $REQUESTED_RUBY_VERSION) \\
+      && rbenv global $REQUESTED_RUBY_VERSION \\
+      && gem install -q --no-rdoc --no-ri bundler --version $BUNDLER_VERSION \\
+      && apt-get clean \\
+      && rm -f /var/lib/apt/lists/*_*; \\
+    fi
+ENV RBENV_VERSION=${{REQUESTED_RUBY_VERSION:-$RBENV_VERSION}}
+
+# Copy the application files.
+COPY . /app/
+
+# Install required gems if Gemfile.lock is present.
+RUN if test -f Gemfile.lock; then \\
+      bundle install --deployment --without="development test" \\
+      && rbenv rehash; \\
+    fi
+
+# Temporary. Will be moved to base image later.
+ENV RACK_ENV=production \\
+    RAILS_ENV=production \\
+    RAILS_SERVE_STATIC_FILES=true
+
+# Run asset pipeline if we're in a Rails app.
+RUN if test -d app/assets -a -f config/application.rb; then \\
+      bundle exec rake assets:precompile || true; \\
+    fi
+
+# BUG: Reset entrypoint to override base image.
+ENTRYPOINT []
+
+# Start application on port $PORT.
+CMD {entrypoint}
+'''
+
+
+class RuntimeTestCase(testutil.TestBase):
+    """Tests for the Ruby external runtime fingerprinter."""
+
+    def file_contents(self, filename):
+        """Reads the contents of the file from the tempdir.
+
+        Args:
+            filename: (str) filename to be joined with tempdir prefix.
+
+        Returns:
+            File contents.
+        """
+        with open(self.full_path(filename)) as f:
+            return f.read()
+
+    def stub_response(self, response):
+        """Stubs the console response from the user.
+
+        Args:
+            response: (str) stubbed response.
+
+        Returns:
+            A function to reset the stubbed functions to their original
+            implementations.
+        """
+        can_prompt = self.exec_env.CanPrompt
+        prompt_response = self.exec_env.PromptResponse
+
+        def unstub():
+            self.exec_env.CanPrompt = can_prompt
+            self.exec_env.PromptResponse = prompt_response
+
+        self.exec_env.CanPrompt = lambda: True
+        self.exec_env.PromptResponse = lambda prompt: response
+
+        return unstub
+
+    def setUp(self):
+        self.runtime_def_root = RUNTIME_DEF_ROOT
+        super(RuntimeTestCase, self).setUp()
+
+    def test_generate_without_ruby_files(self):
+        self.write_file('index.html', 'index')
+
+        self.generate_configs()
+
+        self.assertFalse(os.path.exists(self.full_path('app.yaml')))
+        self.assertFalse(os.path.exists(self.full_path('Dockerfile')))
+        self.assertFalse(os.path.exists(self.full_path('.dockerignore')))
+
+    def test_generate_without_ruby_files_no_write(self):
+        """Tests generate_config_data does nothing if no ruby files."""
+        self.write_file('index.html', 'index')
+
+        self.assertIsNone(self.generate_config_data())
+        self.assertFalse(os.path.exists(self.full_path('app.yaml')))
+
+    def test_generate_with_ruby_files(self):
+        self.write_file('index.rb', 'class Index; end')
+        self.write_file('Gemfile', 'source "https://rubygems.org"')
+        self.write_file('config.ru', 'run Index.app')
+
+        unstub = self.stub_response('bundle exec rackup -p $PORT -E deployment')
+        self.generate_configs()
+        unstub()
+
+        app_yaml = self.file_contents('app.yaml')
+        self.assertIn('runtime: ruby\n', app_yaml)
+        self.assertIn('env: flex\n', app_yaml)
+        self.assertIn('entrypoint: bundle exec rackup -p $PORT -E deployment\n',
+                      app_yaml)
+
+        self.assertFalse(os.path.exists(self.full_path('Dockerfile')))
+        self.assertFalse(os.path.exists(self.full_path('.dockerignore')))
+
+    def test_generate_with_ruby_files_no_write(self):
+        """Tests generate_config_data with basic Ruby files.
+
+        Tests that app.yaml is written with correct contents given entrypoint
+        response, and that Dockerfile and .dockerignore not written to disk.
+        """
+        self.write_file('index.rb', 'class Index; end')
+        self.write_file('Gemfile', 'source "https://rubygems.org"')
+        self.write_file('config.ru', 'run Index.app')
+
+        unstub = self.stub_response('bundle exec rackup -p $PORT -E deployment')
+        cfg_files = self.generate_config_data()
+        unstub()
+
+        app_yaml = self.file_contents('app.yaml')
+        self.assertIn('runtime: ruby\n', app_yaml)
+        self.assertIn('env: flex\n', app_yaml)
+        self.assertIn('entrypoint: bundle exec rackup -p $PORT -E deployment\n',
+                      app_yaml)
+
+        self.assertNotIn('Dockerfile', [f.filename for f in cfg_files])
+        self.assertNotIn('.dockerignore', [f.filename for f in cfg_files])
+
+    def test_generate_with_deploy(self):
+        self.write_file('index.rb', 'class Index; end')
+        self.write_file('Gemfile', 'source "https://rubygems.org"')
+        self.write_file('config.ru', 'run Index.app')
+        self.write_file('.ruby-version', 'rbx-3.9')
+
+        unstub = self.stub_response('bundle exec rackup -p $PORT -E deployment')
+        self.generate_configs(deploy=True)
+        unstub()
+
+        dockerfile = self.file_contents('Dockerfile')
+
+        self.assertEqual(
+                dockerfile,
+                DOCKERFILE_TEXT.format(
+                        ruby_version='rbx-3.9',
+                        entrypoint='bundle exec rackup -p $PORT -E deployment'))
+
+        dockerignore = self.file_contents('.dockerignore')
+        self.assertIn('.dockerignore\n', dockerignore)
+        self.assertIn('Dockerfile\n', dockerignore)
+        self.assertIn('.git\n', dockerignore)
+        self.assertIn('.hg\n', dockerignore)
+        self.assertIn('.svn\n', dockerignore)
+
+    def test_generate_with_deploy_no_write(self):
+        """Tests generate_config_data with deploy=True.
+
+        Tests that .dockerignore and Dockerfile contents are correct
+        based on contents of app.
+        """
+        self.write_file('index.rb', 'class Index; end')
+        self.write_file('Gemfile', 'source "https://rubygems.org"')
+        self.write_file('config.ru', 'run Index.app')
+        self.write_file('.ruby-version', 'rbx-3.9')
+
+        unstub = self.stub_response('bundle exec rackup -p $PORT -E deployment')
+        cfg_files = self.generate_config_data(deploy=True)
+        unstub()
+
+        self.assert_genfile_exists_with_contents(
+                cfg_files,
+                'Dockerfile',
+                DOCKERFILE_TEXT.format(
+                        ruby_version='rbx-3.9',
+                        entrypoint='bundle exec rackup -p $PORT -E deployment'))
+
+        self.assertIn('.dockerignore', [f.filename for f in cfg_files])
+        dockerignore = [f.contents for f in cfg_files if
+                        f.filename == '.dockerignore'][0]
+        self.assertIn('.dockerignore\n', dockerignore)
+        self.assertIn('Dockerfile\n', dockerignore)
+        self.assertIn('.git\n', dockerignore)
+        self.assertIn('.hg\n', dockerignore)
+        self.assertIn('.svn\n', dockerignore)
+
+    def test_generate_with_custom(self):
+        self.write_file('index.rb', 'class Index; end')
+        self.write_file('Gemfile', 'source "https://rubygems.org"')
+        self.write_file('config.ru', 'run Index.app')
+
+        unstub = self.stub_response('bundle exec rackup -p $PORT -E deployment')
+        self.generate_configs(custom=True)
+        unstub()
+
+        app_yaml = self.file_contents('app.yaml')
+        self.assertIn('runtime: custom\n', app_yaml)
+        self.assertIn('env: flex\n', app_yaml)
+        self.assertIn('entrypoint: bundle exec rackup -p $PORT -E deployment\n',
+                      app_yaml)
+
+        dockerfile = self.file_contents('Dockerfile')
+        self.assertEqual(
+                dockerfile,
+                DOCKERFILE_TEXT.format(
+                        ruby_version='',
+                        entrypoint='bundle exec rackup -p $PORT -E deployment'))
+
+        dockerignore = self.file_contents('.dockerignore')
+        self.assertIn('.dockerignore\n', dockerignore)
+        self.assertIn('Dockerfile\n', dockerignore)
+        self.assertIn('.git\n', dockerignore)
+        self.assertIn('.hg\n', dockerignore)
+        self.assertIn('.svn\n', dockerignore)
+
+    def test_generate_with_custom_no_write(self):
+        """Tests generate_config_data with custom=True.
+
+        Tests that app.yaml is written with correct parameters and
+        Dockerfile, .dockerignore contents are correctly returned by method.
+        """
+        self.write_file('index.rb', 'class Index; end')
+        self.write_file('Gemfile', 'source "https://rubygems.org"')
+        self.write_file('config.ru', 'run Index.app')
+
+        unstub = self.stub_response('bundle exec rackup -p $PORT -E deployment')
+        cfg_files = self.generate_config_data(custom=True)
+        unstub()
+
+        app_yaml = self.file_contents('app.yaml')
+        self.assertIn('runtime: custom\n', app_yaml)
+        self.assertIn('env: flex\n', app_yaml)
+        self.assertIn('entrypoint: bundle exec rackup -p $PORT -E deployment\n',
+                      app_yaml)
+
+        self.assert_genfile_exists_with_contents(
+                cfg_files,
+                'Dockerfile',
+                DOCKERFILE_TEXT.format(
+                        ruby_version='',
+                        entrypoint='bundle exec rackup -p $PORT -E deployment'))
+
+        self.assertIn('.dockerignore', [f.filename for f in cfg_files])
+        dockerignore = [f.contents for f in cfg_files if
+                        f.filename == '.dockerignore'][0]
+        self.assertIn('.dockerignore\n', dockerignore)
+        self.assertIn('Dockerfile\n', dockerignore)
+        self.assertIn('.git\n', dockerignore)
+        self.assertIn('.hg\n', dockerignore)
+        self.assertIn('.svn\n', dockerignore)
+
+    def test_generate_with_existing_appinfo(self):
+        self.write_file('index.rb', 'class Index; end')
+        self.write_file('Gemfile', 'source "https://rubygems.org"')
+        self.write_file('config.ru', 'run Index.app')
+        appinfo = testutil.AppInfoFake(
+                entrypoint='bundle exec ruby index.rb $PORT',
+                runtime='ruby',
+                vm=True)
+        self.generate_configs(appinfo=appinfo, deploy=True)
+
+        self.assertFalse(os.path.exists(self.full_path('app.yaml')))
+
+        dockerfile = self.file_contents('Dockerfile')
+        self.assertEqual(
+                dockerfile,
+                DOCKERFILE_TEXT.format(
+                        ruby_version='',
+                        entrypoint='bundle exec ruby index.rb $PORT'))
+
+        dockerignore = self.file_contents('.dockerignore')
+        self.assertIn('.dockerignore\n', dockerignore)
+        self.assertIn('Dockerfile\n', dockerignore)
+        self.assertIn('.git\n', dockerignore)
+        self.assertIn('.hg\n', dockerignore)
+        self.assertIn('.svn\n', dockerignore)
+
+    def test_generate_with_existing_appinfo_no_write(self):
+        """Tests generate_config_data with passed appinfo."""
+        self.write_file('index.rb', 'class Index; end')
+        self.write_file('Gemfile', 'source "https://rubygems.org"')
+        self.write_file('config.ru', 'run Index.app')
+        appinfo = testutil.AppInfoFake(
+                entrypoint='bundle exec ruby index.rb $PORT',
+                runtime='ruby',
+                vm=True)
+        cfg_files = self.generate_config_data(appinfo=appinfo, deploy=True)
+
+        self.assertFalse(os.path.exists(self.full_path('app.yaml')))
+
+        self.assert_genfile_exists_with_contents(
+                cfg_files,
+                'Dockerfile',
+                DOCKERFILE_TEXT.format(
+                        ruby_version='',
+                        entrypoint='bundle exec ruby index.rb $PORT'))
+
+        self.assertIn('.dockerignore', [f.filename for f in cfg_files])
+        dockerignore = [f.contents for f in cfg_files if
+                        f.filename == '.dockerignore'][0]
+        self.assertIn('.dockerignore\n', dockerignore)
+        self.assertIn('Dockerfile\n', dockerignore)
+        self.assertIn('.git\n', dockerignore)
+        self.assertIn('.hg\n', dockerignore)
+        self.assertIn('.svn\n', dockerignore)
+
+    def test_generate_with_ruby_version(self):
+        self.write_file('index.rb', 'class Index; end')
+        self.write_file('Gemfile', 'source "https://rubygems.org"')
+        self.write_file('config.ru', 'run Index.app')
+        self.write_file('.ruby-version', '2.3.1\n')
+        appinfo = testutil.AppInfoFake(
+                entrypoint='bundle exec ruby index.rb $PORT',
+                runtime='ruby',
+                vm=True)
+        self.generate_configs(appinfo=appinfo, deploy=True)
+
+        self.assertFalse(os.path.exists(self.full_path('app.yaml')))
+
+        dockerfile = self.file_contents('Dockerfile')
+        self.assertEqual(
+                dockerfile,
+                DOCKERFILE_TEXT.format(
+                        ruby_version='2.3.1',
+                        entrypoint='bundle exec ruby index.rb $PORT'))
+
+        dockerignore = self.file_contents('.dockerignore')
+        self.assertIn('.dockerignore\n', dockerignore)
+        self.assertIn('Dockerfile\n', dockerignore)
+        self.assertIn('.git\n', dockerignore)
+        self.assertIn('.hg\n', dockerignore)
+        self.assertIn('.svn\n', dockerignore)
+
+    def test_generate_with_ruby_version_no_write(self):
+        """Tests generate_config_data with .ruby-version file."""
+        self.write_file('index.rb', 'class Index; end')
+        self.write_file('Gemfile', 'source "https://rubygems.org"')
+        self.write_file('config.ru', 'run Index.app')
+        self.write_file('.ruby-version', '2.3.1\n')
+        appinfo = testutil.AppInfoFake(
+                entrypoint='bundle exec ruby index.rb $PORT',
+                runtime='ruby',
+                vm=True)
+        cfg_files = self.generate_config_data(appinfo=appinfo, deploy=True)
+
+        self.assertFalse(os.path.exists(self.full_path('app.yaml')))
+
+        self.assert_genfile_exists_with_contents(
+                cfg_files,
+                'Dockerfile',
+                DOCKERFILE_TEXT.format(
+                        ruby_version='2.3.1',
+                        entrypoint='bundle exec ruby index.rb $PORT'))
+
+        self.assertIn('.dockerignore', [f.filename for f in cfg_files])
+        dockerignore = [f.contents for f in cfg_files if
+                        f.filename == '.dockerignore'][0]
+        self.assertIn('.dockerignore\n', dockerignore)
+        self.assertIn('Dockerfile\n', dockerignore)
+        self.assertIn('.git\n', dockerignore)
+        self.assertIn('.hg\n', dockerignore)
+        self.assertIn('.svn\n', dockerignore)
+
+    def test_generate_with_prompt(self):
+        self.write_file('index.rb', 'class Index; end')
+        self.write_file('Gemfile', 'source "https://rubygems.org"')
+
+        unstub = self.stub_response('bundle exec ruby index.rb $PORT')
+        self.generate_configs(deploy=True)
+        unstub()
+
+        dockerfile = self.file_contents('Dockerfile')
+        self.assertEqual(
+                dockerfile,
+                DOCKERFILE_TEXT.format(
+                        ruby_version='',
+                        entrypoint='bundle exec ruby index.rb $PORT'))
+
+        dockerignore = self.file_contents('.dockerignore')
+        self.assertIn('.dockerignore\n', dockerignore)
+        self.assertIn('Dockerfile\n', dockerignore)
+        self.assertIn('.git\n', dockerignore)
+        self.assertIn('.hg\n', dockerignore)
+        self.assertIn('.svn\n', dockerignore)
+
+    def test_generate_with_prompt_no_write(self):
+        """Tests generate_config_data with entrypoint given by prompt."""
+        self.write_file('index.rb', 'class Index; end')
+        self.write_file('Gemfile', 'source "https://rubygems.org"')
+
+        unstub = self.stub_response('bundle exec ruby index.rb $PORT')
+        cfg_files = self.generate_config_data(deploy=True)
+        unstub()
+
+        self.assert_genfile_exists_with_contents(
+                cfg_files,
+                'Dockerfile',
+                DOCKERFILE_TEXT.format(
+                        ruby_version='',
+                        entrypoint='bundle exec ruby index.rb $PORT'))
+
+        self.assertIn('.dockerignore', [f.filename for f in cfg_files])
+        dockerignore = [f.contents for f in cfg_files if
+                        f.filename == '.dockerignore'][0]
+        self.assertIn('.dockerignore\n', dockerignore)
+        self.assertIn('Dockerfile\n', dockerignore)
+        self.assertIn('.git\n', dockerignore)
+        self.assertIn('.hg\n', dockerignore)
+        self.assertIn('.svn\n', dockerignore)
+
+if __name__ == '__main__':
+      unittest.main()
+