114 lines
4.4 KiB
Python
114 lines
4.4 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 removing instances from target pools."""
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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.api_lib.compute import 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.command_lib.compute import flags as compute_flags
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from googlecloudsdk.command_lib.compute.instances import flags as instance_flags
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from googlecloudsdk.command_lib.compute.target_pools import flags
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from googlecloudsdk.core import log
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class RemoveInstances(base.SilentCommand):
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"""Remove instances from a target pool.
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*{command}* is used to remove one or more instances from a
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target pool.
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For more information on health checks and load balancing, see
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[](https://cloud.google.com/compute/docs/load-balancing-and-autoscaling/)
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"""
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INSTANCE_ARG = None
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TARGET_POOL_ARG = None
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@classmethod
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def Args(cls, parser):
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cls.INSTANCE_ARG = instance_flags.InstanceArgumentForTargetPool(
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'remove from')
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cls.INSTANCE_ARG.AddArgument(
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parser,
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operation_type='remove from the target pool',
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cust_metavar='INSTANCE')
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cls.TARGET_POOL_ARG = flags.TargetPoolArgumentForAddRemoveInstances(
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help_suffix=' from which to remove the instances.')
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cls.TARGET_POOL_ARG.AddArgument(parser)
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compute_flags.AddZoneFlag(
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parser,
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resource_type='instances',
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operation_type='remove from the target pool',
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explanation=(
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'DEPRECATED, use --instances-zone. '
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'If not specified, you will be prompted to select a zone.'))
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def Run(self, args):
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"""Issues a TargetPools.RemoveInstance request."""
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holder = base_classes.ComputeApiHolder(self.ReleaseTrack())
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client = holder.client
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if args.zone and not args.instances_zone:
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args.instances_zone = args.zone
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log.warning('The --zone flag is deprecated. Use equivalent '
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'--instances-zone=%s flag.', args.instances_zone)
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instance_refs = self.INSTANCE_ARG.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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instances = [
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client.messages.InstanceReference(instance=instance_ref.SelfLink())
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for instance_ref in instance_refs]
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# This check to make sure the regions for the instances are the same is not
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# really necessary, but it does allow for a fast fail if the user passes in
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# instances from different regions.
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unique_regions = set(utils.ZoneNameToRegionName(instance_ref.zone)
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for instance_ref in instance_refs)
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if len(unique_regions) > 1:
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raise compute_exceptions.ArgumentError(
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'Instances must all be in the same region as the target pool.')
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region = unique_regions.pop()
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# Check that the region of the instances is the same as target pool region.
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if args.region and region != args.region:
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raise compute_exceptions.ArgumentError(
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'Instances must all be in the same region as the target pool.')
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args.region = region
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target_pool_ref = self.TARGET_POOL_ARG.ResolveAsResource(args,
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holder.resources)
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request = client.messages.ComputeTargetPoolsRemoveInstanceRequest(
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region=target_pool_ref.region,
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project=target_pool_ref.project,
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targetPool=target_pool_ref.Name(),
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targetPoolsRemoveInstanceRequest=(
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client.messages.TargetPoolsRemoveInstanceRequest(
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instances=instances)))
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return client.MakeRequests([(client.apitools_client.targetPools,
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'RemoveInstance', request)])
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