mirror of
https://github.com/thegeeklab/ansible-later.git
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357 lines
12 KiB
Python
357 lines
12 KiB
Python
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# (c) 2013, Balazs Pocze <banyek@gawker.com>
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# Certain parts are taken from Mark Theunissen's mysqldb module
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#
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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from __future__ import absolute_import, division, print_function
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__metaclass__ = type
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ANSIBLE_METADATA = {'metadata_version': '1.1',
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'status': ['preview'],
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'supported_by': 'community'}
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DOCUMENTATION = '''
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---
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module: mysql_replication
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short_description: Manage MySQL replication
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description:
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- Manages MySQL server replication, slave, master status get and change master host.
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version_added: "1.3"
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author: "Balazs Pocze (@banyek)"
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options:
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mode:
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description:
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- module operating mode. Could be getslave (SHOW SLAVE STATUS), getmaster (SHOW MASTER STATUS), changemaster (CHANGE MASTER TO), startslave
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(START SLAVE), stopslave (STOP SLAVE), resetslave (RESET SLAVE), resetslaveall (RESET SLAVE ALL)
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choices:
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- getslave
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- getmaster
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- changemaster
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- stopslave
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- startslave
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- resetslave
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- resetslaveall
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default: getslave
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master_host:
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description:
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- same as mysql variable
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master_user:
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description:
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- same as mysql variable
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master_password:
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description:
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- same as mysql variable
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master_port:
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description:
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- same as mysql variable
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master_connect_retry:
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description:
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- same as mysql variable
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master_log_file:
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description:
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- same as mysql variable
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master_log_pos:
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description:
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- same as mysql variable
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relay_log_file:
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description:
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- same as mysql variable
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relay_log_pos:
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description:
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- same as mysql variable
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master_ssl:
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description:
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- same as mysql variable
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choices: [ 0, 1 ]
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master_ssl_ca:
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description:
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- same as mysql variable
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master_ssl_capath:
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description:
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- same as mysql variable
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master_ssl_cert:
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description:
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- same as mysql variable
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master_ssl_key:
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description:
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- same as mysql variable
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master_ssl_cipher:
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description:
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- same as mysql variable
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master_auto_position:
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description:
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- does the host uses GTID based replication or not
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version_added: "2.0"
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extends_documentation_fragment: mysql
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'''
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EXAMPLES = '''
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# Stop mysql slave thread
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- mysql_replication:
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mode: stopslave
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# Get master binlog file name and binlog position
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- mysql_replication:
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mode: getmaster
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# Change master to master server 192.0.2.1 and use binary log 'mysql-bin.000009' with position 4578
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- mysql_replication:
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mode: changemaster
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master_host: 192.0.2.1
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master_log_file: mysql-bin.000009
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master_log_pos: 4578
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# Check slave status using port 3308
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- mysql_replication:
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mode: getslave
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login_host: ansible.example.com
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login_port: 3308
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'''
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import os
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import warnings
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from ansible.module_utils.basic import AnsibleModule
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from ansible.module_utils.mysql import mysql_connect, mysql_driver, mysql_driver_fail_msg
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from ansible.module_utils._text import to_native
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def get_master_status(cursor):
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cursor.execute("SHOW MASTER STATUS")
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masterstatus = cursor.fetchone()
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return masterstatus
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def get_slave_status(cursor):
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cursor.execute("SHOW SLAVE STATUS")
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slavestatus = cursor.fetchone()
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return slavestatus
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def stop_slave(cursor):
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try:
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cursor.execute("STOP SLAVE")
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stopped = True
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except:
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stopped = False
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return stopped
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def reset_slave(cursor):
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try:
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cursor.execute("RESET SLAVE")
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reset = True
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except:
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reset = False
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return reset
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def reset_slave_all(cursor):
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try:
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cursor.execute("RESET SLAVE ALL")
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reset = True
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except:
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reset = False
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return reset
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def start_slave(cursor):
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try:
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cursor.execute("START SLAVE")
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started = True
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except:
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started = False
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return started
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def changemaster(cursor, chm, chm_params):
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sql_param = ",".join(chm)
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query = 'CHANGE MASTER TO %s' % sql_param
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cursor.execute(query, chm_params)
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def main():
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module = AnsibleModule(
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argument_spec=dict(
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login_user=dict(default=None),
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login_password=dict(default=None, no_log=True),
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login_host=dict(default="localhost"),
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login_port=dict(default=3306, type='int'),
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login_unix_socket=dict(default=None),
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mode=dict(default="getslave", choices=["getmaster", "getslave", "changemaster", "stopslave", "startslave", "resetslave", "resetslaveall"]),
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master_auto_position=dict(default=False, type='bool'),
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master_host=dict(default=None),
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master_user=dict(default=None),
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master_password=dict(default=None, no_log=True),
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master_port=dict(default=None, type='int'),
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master_connect_retry=dict(default=None, type='int'),
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master_log_file=dict(default=None),
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master_log_pos=dict(default=None, type='int'),
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relay_log_file=dict(default=None),
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relay_log_pos=dict(default=None, type='int'),
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master_ssl=dict(default=False, type='bool'),
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master_ssl_ca=dict(default=None),
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master_ssl_capath=dict(default=None),
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master_ssl_cert=dict(default=None),
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master_ssl_key=dict(default=None),
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master_ssl_cipher=dict(default=None),
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connect_timeout=dict(default=30, type='int'),
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config_file=dict(default="~/.my.cnf", type='path'),
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ssl_cert=dict(default=None),
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ssl_key=dict(default=None),
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ssl_ca=dict(default=None),
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)
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)
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mode = module.params["mode"]
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master_host = module.params["master_host"]
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master_user = module.params["master_user"]
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master_password = module.params["master_password"]
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master_port = module.params["master_port"]
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master_connect_retry = module.params["master_connect_retry"]
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master_log_file = module.params["master_log_file"]
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master_log_pos = module.params["master_log_pos"]
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relay_log_file = module.params["relay_log_file"]
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relay_log_pos = module.params["relay_log_pos"]
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master_ssl = module.params["master_ssl"]
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master_ssl_ca = module.params["master_ssl_ca"]
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master_ssl_capath = module.params["master_ssl_capath"]
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master_ssl_cert = module.params["master_ssl_cert"]
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master_ssl_key = module.params["master_ssl_key"]
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master_ssl_cipher = module.params["master_ssl_cipher"]
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master_auto_position = module.params["master_auto_position"]
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ssl_cert = module.params["ssl_cert"]
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ssl_key = module.params["ssl_key"]
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ssl_ca = module.params["ssl_ca"]
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connect_timeout = module.params['connect_timeout']
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config_file = module.params['config_file']
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if mysql_driver is None:
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module.fail_json(msg=mysql_driver_fail_msg)
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else:
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warnings.filterwarnings('error', category=mysql_driver.Warning)
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login_password = module.params["login_password"]
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login_user = module.params["login_user"]
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try:
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cursor = mysql_connect(module, login_user, login_password, config_file, ssl_cert, ssl_key, ssl_ca, None, 'mysql_driver.cursors.DictCursor',
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connect_timeout=connect_timeout)
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except Exception as e:
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if os.path.exists(config_file):
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module.fail_json(msg="unable to connect to database, check login_user and login_password are correct or %s has the credentials. "
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"Exception message: %s" % (config_file, to_native(e)))
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else:
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module.fail_json(msg="unable to find %s. Exception message: %s" % (config_file, to_native(e)))
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if mode in "getmaster":
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status = get_master_status(cursor)
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if not isinstance(status, dict):
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status = dict(Is_Master=False, msg="Server is not configured as mysql master")
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else:
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status['Is_Master'] = True
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module.exit_json(**status)
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elif mode in "getslave":
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status = get_slave_status(cursor)
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if not isinstance(status, dict):
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status = dict(Is_Slave=False, msg="Server is not configured as mysql slave")
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else:
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status['Is_Slave'] = True
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module.exit_json(**status)
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elif mode in "changemaster":
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chm = []
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chm_params = {}
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result = {}
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if master_host:
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chm.append("MASTER_HOST=%(master_host)s")
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chm_params['master_host'] = master_host
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if master_user:
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chm.append("MASTER_USER=%(master_user)s")
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chm_params['master_user'] = master_user
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if master_password:
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chm.append("MASTER_PASSWORD=%(master_password)s")
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chm_params['master_password'] = master_password
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if master_port is not None:
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chm.append("MASTER_PORT=%(master_port)s")
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chm_params['master_port'] = master_port
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if master_connect_retry is not None:
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chm.append("MASTER_CONNECT_RETRY=%(master_connect_retry)s")
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chm_params['master_connect_retry'] = master_connect_retry
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if master_log_file:
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chm.append("MASTER_LOG_FILE=%(master_log_file)s")
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chm_params['master_log_file'] = master_log_file
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if master_log_pos is not None:
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chm.append("MASTER_LOG_POS=%(master_log_pos)s")
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chm_params['master_log_pos'] = master_log_pos
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if relay_log_file:
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chm.append("RELAY_LOG_FILE=%(relay_log_file)s")
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chm_params['relay_log_file'] = relay_log_file
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if relay_log_pos is not None:
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chm.append("RELAY_LOG_POS=%(relay_log_pos)s")
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chm_params['relay_log_pos'] = relay_log_pos
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if master_ssl:
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chm.append("MASTER_SSL=1")
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if master_ssl_ca:
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chm.append("MASTER_SSL_CA=%(master_ssl_ca)s")
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chm_params['master_ssl_ca'] = master_ssl_ca
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if master_ssl_capath:
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chm.append("MASTER_SSL_CAPATH=%(master_ssl_capath)s")
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chm_params['master_ssl_capath'] = master_ssl_capath
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if master_ssl_cert:
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chm.append("MASTER_SSL_CERT=%(master_ssl_cert)s")
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chm_params['master_ssl_cert'] = master_ssl_cert
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if master_ssl_key:
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chm.append("MASTER_SSL_KEY=%(master_ssl_key)s")
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chm_params['master_ssl_key'] = master_ssl_key
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if master_ssl_cipher:
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chm.append("MASTER_SSL_CIPHER=%(master_ssl_cipher)s")
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chm_params['master_ssl_cipher'] = master_ssl_cipher
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if master_auto_position:
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chm.append("MASTER_AUTO_POSITION = 1")
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try:
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changemaster(cursor, chm, chm_params)
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except mysql_driver.Warning as e:
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result['warning'] = to_native(e)
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except Exception as e:
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module.fail_json(msg='%s. Query == CHANGE MASTER TO %s' % (to_native(e), chm))
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result['changed'] = True
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module.exit_json(**result)
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elif mode in "startslave":
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started = start_slave(cursor)
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if started is True:
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module.exit_json(msg="Slave started ", changed=True)
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else:
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module.exit_json(msg="Slave already started (Or cannot be started)", changed=False)
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elif mode in "stopslave":
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stopped = stop_slave(cursor)
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if stopped is True:
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module.exit_json(msg="Slave stopped", changed=True)
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else:
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module.exit_json(msg="Slave already stopped", changed=False)
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elif mode in "resetslave":
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reset = reset_slave(cursor)
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if reset is True:
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module.exit_json(msg="Slave reset", changed=True)
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else:
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module.exit_json(msg="Slave already reset", changed=False)
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elif mode in "resetslaveall":
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reset = reset_slave_all(cursor)
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if reset is True:
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module.exit_json(msg="Slave reset", changed=True)
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else:
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module.exit_json(msg="Slave already reset", changed=False)
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warnings.simplefilter("ignore")
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if __name__ == '__main__':
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main()
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