157 lines
5.2 KiB
Python
157 lines
5.2 KiB
Python
# -*- coding: utf-8 -*- #
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# Copyright 2014 Google LLC. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Delete cluster command."""
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from __future__ import absolute_import
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from __future__ import division
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from __future__ import unicode_literals
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from apitools.base.py import exceptions as apitools_exceptions
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from googlecloudsdk.api_lib.container import kubeconfig as kconfig
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from googlecloudsdk.api_lib.container import util
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from googlecloudsdk.calliope import base
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from googlecloudsdk.calliope import exceptions
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from googlecloudsdk.command_lib.container import flags
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from googlecloudsdk.core import log
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from googlecloudsdk.core import properties
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from googlecloudsdk.core.console import console_io
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import six
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@base.DefaultUniverseOnly
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class Delete(base.DeleteCommand):
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"""Delete an existing cluster for running containers.
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When you delete a cluster, the following resources are deleted:
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- The control plane resources
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- All of the node instances in the cluster
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- Any Pods that are running on those instances
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- Any firewalls and routes created by Kubernetes Engine at the time of cluster
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creation
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- Data stored in host hostPath and emptyDir volumes
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GKE will attempt to delete the following resources. Deletion of these
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resources is not always guaranteed:
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- External load balancers created by the cluster
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- Internal load balancers created by the cluster
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- Persistent disk volumes
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"""
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detailed_help = {
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'DESCRIPTION':
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'{description}',
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'EXAMPLES':
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"""\
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To delete an existing cluster, run:
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$ {command} sample-cluster
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""",
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}
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@staticmethod
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def Args(parser):
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"""Register flags for this command.
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Args:
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parser: An argparse.ArgumentParser-like object. It is mocked out in order
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to capture some information, but behaves like an ArgumentParser.
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"""
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parser.add_argument(
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'names',
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metavar='NAME',
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nargs='+',
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help='The names of the clusters to delete.')
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parser.add_argument(
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'--timeout',
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type=int,
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default=3600,
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hidden=True,
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help='Timeout (seconds) for waiting on the operation to complete.')
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flags.AddAsyncFlag(parser)
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flags.AddKubecontextOverrideFlag(parser)
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def Run(self, args):
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"""This is what gets called when the user runs this command.
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Args:
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args: an argparse namespace. All the arguments that were provided to this
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command invocation.
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Returns:
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Some value that we want to have printed later.
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"""
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adapter = self.context['api_adapter']
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location_get = self.context['location_get']
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location = location_get(args)
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cluster_refs = []
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for name in args.names:
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cluster_refs.append(adapter.ParseCluster(name, location))
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console_io.PromptContinue(
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message=util.ConstructList('The following clusters will be deleted.', [
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'[{name}] in [{zone}]'.format(
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name=ref.clusterId, zone=adapter.Zone(ref))
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for ref in cluster_refs
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]),
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throw_if_unattended=True,
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cancel_on_no=True)
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operations = []
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errors = []
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# Issue all deletes first
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for cluster_ref in cluster_refs:
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try:
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op_ref = adapter.DeleteCluster(cluster_ref)
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operations.append((op_ref, cluster_ref))
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except apitools_exceptions.HttpError as error:
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errors.append(
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six.text_type(
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exceptions.HttpException(error, util.HTTP_ERROR_FORMAT)))
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except util.Error as error:
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errors.append(error)
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if not args.async_:
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# Poll each operation for completion
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for operation_ref, cluster_ref in operations:
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try:
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adapter.WaitForOperation(
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operation_ref,
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'Deleting cluster {0}'.format(cluster_ref.clusterId),
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timeout_s=args.timeout)
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# Purge cached config files
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try:
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util.ClusterConfig.Purge(
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cluster_ref.clusterId,
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adapter.Zone(cluster_ref),
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cluster_ref.projectId,
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args.kubecontext_override,
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)
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except kconfig.MissingEnvVarError as error:
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log.warning(error)
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if properties.VALUES.container.cluster.Get() == cluster_ref.clusterId:
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properties.PersistProperty(properties.VALUES.container.cluster,
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None)
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log.DeletedResource(cluster_ref)
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except apitools_exceptions.HttpError as error:
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errors.append(exceptions.HttpException(error, util.HTTP_ERROR_FORMAT))
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except util.Error as error:
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errors.append(error)
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if errors:
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raise util.Error(
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util.ConstructList('Some requests did not succeed:', errors))
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