| #!/usr/bin/env python |
| """ |
| 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. |
| |
| Ambari Agent |
| |
| """ |
| from resource_management import Script, Execute, format |
| from ambari_commons.os_check import OSCheck |
| from resource_management.core import shell |
| from resource_management.core.logger import Logger |
| |
| class ClearRepoCache(Script): |
| |
| def actionexecute(self, env): |
| config = Script.get_config() |
| structured_output = {} |
| cmd = self.get_clearcache_cmd() |
| |
| Logger.info("Clearing repository cache") |
| code, output = shell.call(cmd, sudo = True) |
| if 0 == code: |
| structured_output["clear_repocache"] = {"exit_code" : 0, "message": format("Repository cache successfully cleared!")} |
| else: |
| structured_output["clear_repocache"] = {"exit_code": code, "message": "Failed to clear repository cache! {0}".format(str(output))} |
| self.put_structured_out(structured_output) |
| |
| def get_clearcache_cmd(self): |
| if OSCheck.is_redhat_family(): |
| Logger.info("Clear repository cache for the RedHat OS family"); |
| return ("/usr/bin/yum", "clean", "all") |
| elif OSCheck.is_suse_family(): |
| Logger.info("Clear repository cache for the SUSE OS family"); |
| return ('/usr/bin/zypper', 'refresh') |
| elif OSCheck.is_ubuntu_family(): |
| Logger.info("Clear repository cache for the Ubuntu OS family"); |
| return ('/usr/bin/apt-get', 'update') |
| else: |
| raise Exception("Unsupported OS family: '{0}' ".format(OSCheck.get_os_family())) |
| |
| if __name__ == "__main__": |
| ClearRepoCache().execute() |