1# -*- coding: utf-8 -*- #
2# Copyright 2019 Google LLC. All Rights Reserved.
3#
4# Licensed under the Apache License, Version 2.0 (the "License");
5# you may not use this file except in compliance with the License.
6# You may obtain a copy of the License at
7#
8#    http://www.apache.org/licenses/LICENSE-2.0
9#
10# Unless required by applicable law or agreed to in writing, software
11# distributed under the License is distributed on an "AS IS" BASIS,
12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13# See the License for the specific language governing permissions and
14# limitations under the License.
15"""Export autoscaling policy command."""
16
17from __future__ import absolute_import
18from __future__ import division
19from __future__ import unicode_literals
20
21import sys
22
23from googlecloudsdk.api_lib.dataproc import dataproc as dp
24from googlecloudsdk.calliope import base
25from googlecloudsdk.command_lib.dataproc import flags
26from googlecloudsdk.command_lib.export import util as export_util
27from googlecloudsdk.core.util import files
28
29
30class Export(base.Command):
31  """Export an autoscaling policy.
32
33  Exporting an autoscaling policy is similar to describing one, except that
34  export omits output only fields, such as the policy id and resource name. This
35  is to allow piping the output of export directly into import, which requires
36  that output only fields are omitted.
37
38  ## EXAMPLES
39
40  The following command saves the contents of autoscaling policy
41  `example-autoscaling-policy` to a file so that it can be imported later:
42
43    $ {command} example-autoscaling-policy --destination=saved-policy.yaml
44  """
45
46  @classmethod
47  def Args(cls, parser):
48    dataproc = dp.Dataproc(cls.ReleaseTrack())
49    flags.AddAutoscalingPolicyResourceArg(parser, 'export',
50                                          dataproc.api_version)
51    export_util.AddExportFlags(parser)
52
53  def Run(self, args):
54    dataproc = dp.Dataproc(self.ReleaseTrack())
55    messages = dataproc.messages
56
57    policy_ref = args.CONCEPTS.autoscaling_policy.Parse()
58
59    request = messages.DataprocProjectsRegionsAutoscalingPoliciesGetRequest(
60        name=policy_ref.RelativeName())
61    policy = dataproc.client.projects_regions_autoscalingPolicies.Get(request)
62
63    # Filter out OUTPUT_ONLY fields and resource identifying fields. Note this
64    # needs to be kept in sync with v1/v1beta2 autoscaling_policies.proto.
65    policy.id = None
66    policy.name = None
67
68    if args.destination:
69      with files.FileWriter(args.destination) as stream:
70        export_util.Export(message=policy, stream=stream)
71    else:
72      # Print to stdout
73      export_util.Export(message=policy, stream=sys.stdout)
74