| #!/usr/bin/env python |
| |
| # Copyright 2016 The Kubernetes Authors. |
| # |
| # Licensed 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. |
| |
| from subprocess import check_output |
| import yaml |
| |
| |
| cmd = ['juju', 'run', '--application', 'kubernetes', '--format=yaml', 'is-leader'] |
| out = check_output(cmd) |
| try: |
| parsed_output = yaml.safe_load(out) |
| for unit in parsed_output: |
| standard_out = unit['Stdout'].rstrip() |
| unit_id = unit['UnitId'] |
| if 'True' in standard_out: |
| print(unit_id) |
| except: |
| pass |