| #!/usr/bin/env python3 |
| # -*- encoding: utf-8 -*- |
| |
| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you under the Apache License, Version 2.0 (the |
| # "License"); you may not use this file except in compliance |
| # with the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, |
| # software distributed under the License is distributed on an |
| # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| # KIND, either express or implied. See the License for the |
| # specific language governing permissions and limitations |
| # under the License. |
| |
| ''' clusters.py ''' |
| from heron.common.src.python.utils.log import Log |
| import heron.tools.explorer.src.python.args as args |
| import heron.tools.common.src.python.access.tracker_access as tracker_access |
| |
| |
| def create_parser(subparsers): |
| """ create argument parser """ |
| parser = subparsers.add_parser( |
| 'clusters', |
| help='Display existing clusters', |
| usage="%(prog)s [options]", |
| add_help=True) |
| args.add_verbose(parser) |
| args.add_tracker_url(parser) |
| parser.set_defaults(subcommand='clusters') |
| return subparsers |
| |
| # pylint: disable=unused-argument,superfluous-parens |
| def run(command, parser, cl_args, unknown_args): |
| """ run command """ |
| try: |
| clusters = tracker_access.get_clusters() |
| except: |
| Log.error("Fail to connect to tracker: \'%s\'", cl_args["tracker_url"]) |
| return False |
| print('Available clusters:') |
| for cluster in clusters: |
| print(' %s' % cluster) |
| return True |