120 lines
4.5 KiB
Python
120 lines
4.5 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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"""Command for adding project-wide metadata."""
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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 encoding
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from googlecloudsdk.api_lib.compute import base_classes
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from googlecloudsdk.api_lib.compute import metadata_utils
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from googlecloudsdk.calliope import base
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from googlecloudsdk.command_lib.compute import exceptions as compute_exceptions
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from googlecloudsdk.core import log
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from googlecloudsdk.core import properties
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class AddMetadata(base.UpdateCommand):
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# pylint:disable=line-too-long
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"""Add or update project-wide metadata.
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*{command}* can be used to add or update project-wide
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metadata. Every instance has access to a metadata server that
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can be used to query metadata that has been set through this
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tool. Project-wide metadata entries are visible to all
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instances. To set metadata for individual instances, use
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`gcloud compute instances add-metadata`. For information on
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metadata, see
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[](https://cloud.google.com/compute/docs/metadata)
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Only metadata keys that are provided are mutated. Existing
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metadata entries will remain unaffected.
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If you are using this command to manage SSH keys for your project, please note
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the
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[risks](https://cloud.google.com/compute/docs/instances/adding-removing-ssh-keys#risks)
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of manual SSH key management as well as the required format for SSH key
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metadata, available at
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[](https://cloud.google.com/compute/docs/instances/adding-removing-ssh-keys)
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"""
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# pylint:enable=line-too-long
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@staticmethod
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def Args(parser):
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metadata_utils.AddMetadataArgs(parser, required=True)
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def CreateReference(self, resources):
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return resources.Parse(
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properties.VALUES.core.project.GetOrFail(),
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collection='compute.projects')
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def GetGetRequest(self, client, project_ref):
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return (client.apitools_client.projects,
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'Get',
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client.messages.ComputeProjectsGetRequest(**project_ref.AsDict()))
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def GetSetRequest(self, client, project_ref, replacement):
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return (client.apitools_client.projects,
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'SetCommonInstanceMetadata',
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client.messages.ComputeProjectsSetCommonInstanceMetadataRequest(
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metadata=replacement.commonInstanceMetadata,
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**project_ref.AsDict()))
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def Modify(self, client, args, existing):
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new_object = encoding.JsonToMessage(
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type(existing), encoding.MessageToJson(existing))
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existing_metadata = existing.commonInstanceMetadata
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new_object.commonInstanceMetadata = metadata_utils.ConstructMetadataMessage(
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client.messages,
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metadata=args.metadata,
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metadata_from_file=args.metadata_from_file,
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existing_metadata=existing_metadata)
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if metadata_utils.MetadataEqual(existing_metadata,
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new_object.commonInstanceMetadata):
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return None
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else:
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return new_object
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def Run(self, args):
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if not args.metadata and not args.metadata_from_file:
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raise compute_exceptions.ArgumentError(
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'At least one of [--metadata] or [--metadata-from-file] must be '
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'provided.')
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holder = base_classes.ComputeApiHolder(self.ReleaseTrack())
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client = holder.client
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project_ref = self.CreateReference(holder.resources)
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get_request = self.GetGetRequest(client, project_ref)
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objects = client.MakeRequests([get_request])
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new_object = self.Modify(client, args, objects[0])
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# If existing object is equal to the proposed object or if
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# Modify() returns None, then there is no work to be done, so we
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# print the resource and return.
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if not new_object or objects[0] == new_object:
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log.status.Print(
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'No change requested; skipping update for [{0}].'.format(
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objects[0].name))
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return objects
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return client.MakeRequests(
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[self.GetSetRequest(client, project_ref, new_object)])
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