status.py

# 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 <https://www.gnu.org/licenses/>.


from __future__ import absolute_import, division, print_function

import os


def status(plugin_context, *args, **kwargs):
    cluster_config = plugin_context.cluster_config
    clients = plugin_context.clients
    cluster_status = {}
    for server in cluster_config.servers:
        server_config = cluster_config.get_server_conf(server)
        client = clients[server]
        cluster_status[server] = 0
        remote_pid_path = os.path.join(server_config['home_path'], 'run/prometheus.pid')
        remote_pid = client.execute_command('cat {}'.format(remote_pid_path)).stdout.strip()
        if remote_pid and client.execute_command('ls /proc/{}'.format(remote_pid)):
            cluster_status[server] = 1
    return plugin_context.return_true(cluster_status=cluster_status)