109 lines
3.5 KiB
Python
109 lines
3.5 KiB
Python
# -*- coding: utf-8 -*- #
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# Copyright 2023 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 spanner database change quorum."""
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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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import textwrap
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from googlecloudsdk.api_lib.spanner import databases
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from googlecloudsdk.api_lib.util import apis
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from googlecloudsdk.calliope import base
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from googlecloudsdk.command_lib.spanner import resource_args
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@base.DefaultUniverseOnly
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@base.ReleaseTracks(
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base.ReleaseTrack.ALPHA, base.ReleaseTrack.BETA, base.ReleaseTrack.GA
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)
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class ChangeQuorum(base.Command):
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"""Change quorum of a Cloud Spanner database."""
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detailed_help = {
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'EXAMPLES': textwrap.dedent("""\
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To trigger change quorum from single-region mode to dual-region mode, run:
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$ {command} my-database-id --instance=my-instance-id --dual-region
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To trigger change quorum from dual-region mode to single-region mode with serving location as `asia-south1`, run:
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$ {command} my-database-id --instance=my-instance-id --single-region --serving-location=asia-south1
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To trigger change quorum using etag specified, run:
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$ {command} my-database-id --instance=my-instance-id --dual-region --etag=ETAG
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"""),
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}
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@staticmethod
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def Args(parser):
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"""See base class."""
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resource_args.AddDatabaseResourceArg(parser, 'to change quorum')
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dual_region_or_single_region = parser.add_mutually_exclusive_group(
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required=True
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)
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dual_region_flags = dual_region_or_single_region.add_argument_group(
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'Command-line flag for dual-region quorum change:'
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)
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dual_region_flags.add_argument(
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'--dual-region',
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required=True,
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action='store_true',
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help='Switch to dual-region quorum type.',
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)
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single_region_flags = dual_region_or_single_region.add_argument_group(
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'Command-line flags for single-region quorum change:'
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)
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single_region_flags.add_argument(
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'--single-region',
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required=True,
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action='store_true',
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help='Switch to single-region quorum type.',
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)
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single_region_flags.add_argument(
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'--serving-location',
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required=True,
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help='The cloud Spanner location.',
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)
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parser.add_argument(
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'--etag', help='Used for optimistic concurrency control.'
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)
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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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msgs = apis.GetMessagesModule('spanner', 'v1')
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if args.dual_region:
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quorum_type = msgs.QuorumType(dualRegion=msgs.DualRegionQuorum())
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else:
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quorum_type = msgs.QuorumType(
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singleRegion=msgs.SingleRegionQuorum(
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servingLocation=args.serving_location
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)
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)
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return databases.ChangeQuorum(
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args.CONCEPTS.database.Parse(), quorum_type, args.etag
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)
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