95 lines
3.3 KiB
Python
95 lines
3.3 KiB
Python
# -*- coding: utf-8 -*- #
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# Copyright 2015 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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"""Command for getting the latest image from a family."""
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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 googlecloudsdk.api_lib.compute import base_classes
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from googlecloudsdk.calliope import base
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from googlecloudsdk.command_lib.compute import completers
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from googlecloudsdk.command_lib.compute import flags as compute_flags
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from googlecloudsdk.command_lib.compute.images import flags
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class DescribeFromFamily(base.DescribeCommand):
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"""Describe the latest image from an image family.
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*{command}* looks up the latest image from an image family and runs a describe
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on it.
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"""
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@staticmethod
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def Args(parser):
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DescribeFromFamily.DiskImageArg = flags.MakeDiskImageArg()
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DescribeFromFamily.DiskImageArg.AddArgument(
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parser, operation_type='describe')
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# Do not use compute_flags.AddZoneFlag() because there should be no
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# interaction with the compute/zone property.
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parser.add_argument(
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'--zone',
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completer=completers.ZonesCompleter,
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help=('Zone to query. Returns the latest image available in the image '
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'family for the specified zone. If not specified, returns the '
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'latest globally available image.'))
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def Run(self, args):
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holder = base_classes.ComputeApiHolder(self.ReleaseTrack())
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client = holder.client
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image_ref = DescribeFromFamily.DiskImageArg.ResolveAsResource(
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args,
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holder.resources,
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scope_lister=compute_flags.GetDefaultScopeLister(client))
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family = image_ref.image
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if family.startswith('family/'):
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family = family[len('family/'):]
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if hasattr(args, 'zone') and args.zone:
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request = client.messages.ComputeImageFamilyViewsGetRequest(
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family=family, project=image_ref.project, zone=args.zone)
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return client.MakeRequests([(client.apitools_client.imageFamilyViews,
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'Get', request)])[0]
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else:
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request = client.messages.ComputeImagesGetFromFamilyRequest(
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family=family, project=image_ref.project)
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return client.MakeRequests([(client.apitools_client.images,
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'GetFromFamily', request)])[0]
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DescribeFromFamily.detailed_help = {
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'brief':
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'Describe the latest image from an image family.',
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'DESCRIPTION':
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"""\
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*{command}* looks up the latest image from an image family and runs a
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describe on it. If the image is not in the default project, you need to
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specify a value for `--project`.
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""",
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'EXAMPLES':
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"""\
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To view the description for the latest ``debian-9'' image from the
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``debian-cloud'' project, run:
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$ {command} debian-9 --project=debian-cloud
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""",
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}
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