# coding: utf-8 # OceanBase Deploy. # Copyright (C) 2021 OceanBase # # This file is part of OceanBase Deploy. # # OceanBase Deploy is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # OceanBase Deploy is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with OceanBase Deploy. If not, see . from __future__ import absolute_import, division, print_function import os class Restart(object): def __init__(self, plugin_context, local_home_path, start_plugin, reload_plugin, stop_plugin, connect_plugin, display_plugin, repository, new_cluster_config=None, new_clients=None, bootstrap_plugin=None): self.local_home_path = local_home_path self.namespace = plugin_context.namespace self.namespaces = plugin_context.namespaces self.deploy_name = plugin_context.deploy_name self.repositories = plugin_context.repositories self.plugin_name = plugin_context.plugin_name self.components = plugin_context.components self.clients = plugin_context.clients self.cluster_config = plugin_context.cluster_config self.cmds = plugin_context.cmds self.options = plugin_context.options self.dev_mode = plugin_context.dev_mode self.stdio = plugin_context.stdio self.plugin_context = plugin_context self.repository = repository self.start_plugin = start_plugin self.reload_plugin = reload_plugin self.connect_plugin = connect_plugin self.display_plugin = display_plugin self.bootstrap_plugin = bootstrap_plugin self.stop_plugin = stop_plugin self.new_clients = new_clients self.new_cluster_config = new_cluster_config self.sub_io = self.stdio.sub_io() self.dbs = None self.cursors = None def call_plugin(self, plugin, **kwargs): args = { 'namespace': self.namespace, 'namespaces': self.namespaces, 'deploy_name': self.deploy_name, 'cluster_config': self.cluster_config, 'repositories': self.repositories, 'repository': self.repository, 'components': self.components, 'clients': self.clients, 'cmd': self.cmds, 'options': self.options, 'stdio': self.sub_io } args.update(kwargs) self.stdio.verbose('Call %s for %s' % (plugin, self.repository)) return plugin(**args) def connect(self, cluster_config): self.sub_io.start_loading('Connect to obproxy') ret = self.call_plugin(self.connect_plugin, cluster_config=cluster_config) if not ret: self.sub_io.stop_loading('fail') return False self.sub_io.stop_loading('succeed') # self.close() self.cursors = ret.get_return('cursor') self.dbs = ret.get_return('connect') return True def dir_read_check(self, client, path): if not client.execute_command('cd %s' % path): dirpath, name = os.path.split(path) return self.dir_read_check(client, dirpath) and client.execute_command('sudo chmod +1 %s' % path) return True def restart(self): clients = self.clients if self.new_cluster_config: if not self.connect(self.cluster_config): return False self.call_plugin(self.reload_plugin, clients=clients, cursor=self.cursors, new_cluster_config=self.new_cluster_config) if not self.call_plugin(self.stop_plugin, clients=clients): self.stdio.stop_loading('stop_loading', 'fail') return False if self.new_clients: self.stdio.verbose('use new clients') for server in self.cluster_config.servers: new_client = self.new_clients[server] server_config = self.cluster_config.get_server_conf(server) home_path = server_config['home_path'] if not new_client.execute_command('sudo chown -R %s: %s' % (new_client.config.username, home_path)): self.stdio.stop_loading('stop_loading', 'fail') return False self.dir_read_check(new_client, home_path) clients = self.new_clients cluster_config = self.new_cluster_config if self.new_cluster_config else self.cluster_config need_bootstrap = self.bootstrap_plugin is not None if not self.call_plugin(self.start_plugin, clients=clients, cluster_config=cluster_config, local_home_path=self.local_home_path, repository=self.repository, need_bootstrap=need_bootstrap): self.rollback() self.stdio.stop_loading('stop_loading', 'fail') return False if self.connect(cluster_config): if self.bootstrap_plugin: self.call_plugin(self.bootstrap_plugin, cluster_config=cluster_config, cursor=self.cursors) return self.call_plugin(self.display_plugin, cluster_config=cluster_config, cursor=self.cursors) return False def rollback(self): if self.new_clients: cluster_config = self.new_cluster_config if self.new_cluster_config else self.cluster_config self.call_plugin(self.stop_plugin, clients=self.new_clients, cluster_config=cluster_config) for server in self.cluster_config.servers: client = self.clients[server] new_client = self.new_clients[server] server_config = self.cluster_config.get_server_conf(server) home_path = server_config['home_path'] new_client.execute_command('sudo chown -R %s: %s' % (client.config.username, home_path)) def restart(plugin_context, local_home_path, start_plugin, reload_plugin, stop_plugin, connect_plugin, display_plugin, new_cluster_config=None, new_clients=None, rollback=False, bootstrap_plugin=None, *args, **kwargs): repository = kwargs.get('repository') task = Restart(plugin_context, local_home_path, start_plugin, reload_plugin, stop_plugin, connect_plugin, display_plugin, repository, new_cluster_config, new_clients, bootstrap_plugin=bootstrap_plugin) call = task.rollback if rollback else task.restart if call(): plugin_context.return_true()