| """ |
| 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. |
| |
| """ |
| |
| from resource_management.core.exceptions import ComponentIsNotRunning |
| from resource_management.core.exceptions import ExecutionFailed |
| from resource_management.core.exceptions import Fail |
| from resource_management.core.resources.system import Directory |
| from resource_management.core.resources.system import File |
| from resource_management.core.source import Template |
| from resource_management.libraries.functions.format import format |
| from resource_management.libraries.functions.get_user_call_output import get_user_call_output |
| from resource_management.libraries.script import Script |
| |
| import metron_service |
| from rest_commands import RestCommands |
| |
| class RestMaster(Script): |
| |
| def install(self, env): |
| from params import params |
| env.set_params(params) |
| self.install_packages(env) |
| |
| def configure(self, env, upgrade_type=None, config_dir=None): |
| from params import params |
| env.set_params(params) |
| File(format("/etc/default/metron"), |
| content=Template("metron.j2") |
| ) |
| |
| metron_service.refresh_configs(params) |
| |
| commands = RestCommands(params) |
| |
| if not commands.is_kafka_configured(): |
| commands.init_kafka_topics() |
| if not commands.is_hbase_configured(): |
| commands.create_hbase_tables() |
| if not commands.is_metron_user_hdfs_dir_configured(): |
| commands.create_metron_user_hdfs_dir() |
| if params.security_enabled and not commands.is_hbase_acl_configured(): |
| commands.set_hbase_acls() |
| if params.security_enabled and not commands.is_kafka_acl_configured(): |
| commands.init_kafka_acls() |
| commands.set_kafka_acl_configured() |
| |
| if params.metron_knox_enabled and not params.metron_ldap_enabled: |
| raise Fail("Enabling Metron with Knox requires LDAP authentication. Please set 'LDAP Enabled' to true in the Metron Security tab.") |
| |
| def start(self, env, upgrade_type=None): |
| from params import params |
| env.set_params(params) |
| self.configure(env) |
| commands = RestCommands(params) |
| commands.start_rest_application() |
| |
| def stop(self, env, upgrade_type=None): |
| from params import params |
| env.set_params(params) |
| commands = RestCommands(params) |
| commands.stop_rest_application() |
| |
| def status(self, env): |
| from params import status_params |
| env.set_params(status_params) |
| cmd = format('curl --max-time 3 {hostname}:{metron_rest_port}') |
| try: |
| get_user_call_output(cmd, user=status_params.metron_user) |
| except ExecutionFailed: |
| raise ComponentIsNotRunning() |
| |
| def restart(self, env): |
| from params import params |
| env.set_params(params) |
| self.configure(env) |
| commands = RestCommands(params) |
| commands.restart_rest_application(env) |
| |
| |
| if __name__ == "__main__": |
| RestMaster().execute() |