mirror of https://github.com/ansible/ansible.git
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
363 lines
12 KiB
Python
363 lines
12 KiB
Python
#!/usr/bin/python
|
|
# -*- coding: utf-8 -*-
|
|
|
|
"""
|
|
|
|
Ansible module to manage mysql replication
|
|
(c) 2013, Balazs Pocze <banyek@gawker.com>
|
|
Certain parts are taken from Mark Theunissen's mysqldb module
|
|
|
|
This file is part of Ansible
|
|
|
|
Ansible 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.
|
|
|
|
Ansible 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 Ansible. If not, see <http://www.gnu.org/licenses/>.
|
|
"""
|
|
|
|
DOCUMENTATION = '''
|
|
---
|
|
module: mysql_replication
|
|
|
|
short_description: Manage MySQL replication
|
|
description:
|
|
- Manages MySQL server replication, slave, master status get and change master host.
|
|
version_added: "1.3"
|
|
author: "Balazs Pocze (@banyek)"
|
|
options:
|
|
mode:
|
|
description:
|
|
- module operating mode. Could be getslave (SHOW SLAVE STATUS), getmaster (SHOW MASTER STATUS), changemaster (CHANGE MASTER TO), startslave (START SLAVE), stopslave (STOP SLAVE), resetslave (RESET SLAVE), resetslaveall (RESET SLAVE ALL)
|
|
required: False
|
|
choices:
|
|
- getslave
|
|
- getmaster
|
|
- changemaster
|
|
- stopslave
|
|
- startslave
|
|
- resetslave
|
|
- resetslaveall
|
|
default: getslave
|
|
master_host:
|
|
description:
|
|
- same as mysql variable
|
|
master_user:
|
|
description:
|
|
- same as mysql variable
|
|
master_password:
|
|
description:
|
|
- same as mysql variable
|
|
master_port:
|
|
description:
|
|
- same as mysql variable
|
|
master_connect_retry:
|
|
description:
|
|
- same as mysql variable
|
|
master_log_file:
|
|
description:
|
|
- same as mysql variable
|
|
master_log_pos:
|
|
description:
|
|
- same as mysql variable
|
|
relay_log_file:
|
|
description:
|
|
- same as mysql variable
|
|
relay_log_pos:
|
|
description:
|
|
- same as mysql variable
|
|
master_ssl:
|
|
description:
|
|
- same as mysql variable
|
|
choices: [ 0, 1 ]
|
|
master_ssl_ca:
|
|
description:
|
|
- same as mysql variable
|
|
master_ssl_capath:
|
|
description:
|
|
- same as mysql variable
|
|
master_ssl_cert:
|
|
description:
|
|
- same as mysql variable
|
|
master_ssl_key:
|
|
description:
|
|
- same as mysql variable
|
|
master_ssl_cipher:
|
|
description:
|
|
- same as mysql variable
|
|
master_auto_position:
|
|
description:
|
|
- does the host uses GTID based replication or not
|
|
required: false
|
|
default: null
|
|
version_added: "2.0"
|
|
|
|
extends_documentation_fragment: mysql
|
|
'''
|
|
|
|
EXAMPLES = '''
|
|
# Stop mysql slave thread
|
|
- mysql_replication: mode=stopslave
|
|
|
|
# Get master binlog file name and binlog position
|
|
- mysql_replication: mode=getmaster
|
|
|
|
# Change master to master server 192.0.2.1 and use binary log 'mysql-bin.000009' with position 4578
|
|
- mysql_replication: mode=changemaster master_host=192.0.2.1 master_log_file=mysql-bin.000009 master_log_pos=4578
|
|
|
|
# Check slave status using port 3308
|
|
- mysql_replication: mode=getslave login_host=ansible.example.com login_port=3308
|
|
'''
|
|
|
|
import os
|
|
import warnings
|
|
|
|
try:
|
|
import MySQLdb
|
|
except ImportError:
|
|
mysqldb_found = False
|
|
else:
|
|
mysqldb_found = True
|
|
|
|
|
|
def get_master_status(cursor):
|
|
cursor.execute("SHOW MASTER STATUS")
|
|
masterstatus = cursor.fetchone()
|
|
return masterstatus
|
|
|
|
|
|
def get_slave_status(cursor):
|
|
cursor.execute("SHOW SLAVE STATUS")
|
|
slavestatus = cursor.fetchone()
|
|
return slavestatus
|
|
|
|
|
|
def stop_slave(cursor):
|
|
try:
|
|
cursor.execute("STOP SLAVE")
|
|
stopped = True
|
|
except:
|
|
stopped = False
|
|
return stopped
|
|
|
|
|
|
def reset_slave(cursor):
|
|
try:
|
|
cursor.execute("RESET SLAVE")
|
|
reset = True
|
|
except:
|
|
reset = False
|
|
return reset
|
|
|
|
|
|
def reset_slave_all(cursor):
|
|
try:
|
|
cursor.execute("RESET SLAVE ALL")
|
|
reset = True
|
|
except:
|
|
reset = False
|
|
return reset
|
|
|
|
|
|
def start_slave(cursor):
|
|
try:
|
|
cursor.execute("START SLAVE")
|
|
started = True
|
|
except:
|
|
started = False
|
|
return started
|
|
|
|
|
|
def changemaster(cursor, chm, chm_params):
|
|
sql_param = ",".join(chm)
|
|
query = 'CHANGE MASTER TO %s' % sql_param
|
|
cursor.execute(query, chm_params)
|
|
|
|
|
|
def main():
|
|
module = AnsibleModule(
|
|
argument_spec = dict(
|
|
login_user=dict(default=None),
|
|
login_password=dict(default=None, no_log=True),
|
|
login_host=dict(default="localhost"),
|
|
login_port=dict(default=3306, type='int'),
|
|
login_unix_socket=dict(default=None),
|
|
mode=dict(default="getslave", choices=["getmaster", "getslave", "changemaster", "stopslave", "startslave", "resetslave", "resetslaveall"]),
|
|
master_auto_position=dict(default=False, type='bool'),
|
|
master_host=dict(default=None),
|
|
master_user=dict(default=None),
|
|
master_password=dict(default=None, no_log=True),
|
|
master_port=dict(default=None, type='int'),
|
|
master_connect_retry=dict(default=None, type='int'),
|
|
master_log_file=dict(default=None),
|
|
master_log_pos=dict(default=None, type='int'),
|
|
relay_log_file=dict(default=None),
|
|
relay_log_pos=dict(default=None, type='int'),
|
|
master_ssl=dict(default=False, type='bool'),
|
|
master_ssl_ca=dict(default=None),
|
|
master_ssl_capath=dict(default=None),
|
|
master_ssl_cert=dict(default=None),
|
|
master_ssl_key=dict(default=None),
|
|
master_ssl_cipher=dict(default=None),
|
|
connect_timeout=dict(default=30, type='int'),
|
|
config_file=dict(default="~/.my.cnf", type='path'),
|
|
ssl_cert=dict(default=None),
|
|
ssl_key=dict(default=None),
|
|
ssl_ca=dict(default=None),
|
|
)
|
|
)
|
|
user = module.params["login_user"]
|
|
password = module.params["login_password"]
|
|
host = module.params["login_host"]
|
|
port = module.params["login_port"]
|
|
mode = module.params["mode"]
|
|
master_host = module.params["master_host"]
|
|
master_user = module.params["master_user"]
|
|
master_password = module.params["master_password"]
|
|
master_port = module.params["master_port"]
|
|
master_connect_retry = module.params["master_connect_retry"]
|
|
master_log_file = module.params["master_log_file"]
|
|
master_log_pos = module.params["master_log_pos"]
|
|
relay_log_file = module.params["relay_log_file"]
|
|
relay_log_pos = module.params["relay_log_pos"]
|
|
master_ssl = module.params["master_ssl"]
|
|
master_ssl_ca = module.params["master_ssl_ca"]
|
|
master_ssl_capath = module.params["master_ssl_capath"]
|
|
master_ssl_cert = module.params["master_ssl_cert"]
|
|
master_ssl_key = module.params["master_ssl_key"]
|
|
master_ssl_cipher = module.params["master_ssl_cipher"]
|
|
master_auto_position = module.params["master_auto_position"]
|
|
ssl_cert = module.params["ssl_cert"]
|
|
ssl_key = module.params["ssl_key"]
|
|
ssl_ca = module.params["ssl_ca"]
|
|
connect_timeout = module.params['connect_timeout']
|
|
config_file = module.params['config_file']
|
|
|
|
if not mysqldb_found:
|
|
module.fail_json(msg="the python mysqldb module is required")
|
|
else:
|
|
warnings.filterwarnings('error', category=MySQLdb.Warning)
|
|
|
|
login_password = module.params["login_password"]
|
|
login_user = module.params["login_user"]
|
|
|
|
try:
|
|
cursor = mysql_connect(module, login_user, login_password, config_file, ssl_cert, ssl_key, ssl_ca, None, 'MySQLdb.cursors.DictCursor',
|
|
connect_timeout=connect_timeout)
|
|
except Exception, e:
|
|
if os.path.exists(config_file):
|
|
module.fail_json(msg="unable to connect to database, check login_user and login_password are correct or %s has the credentials. Exception message: %s" % (config_file, e))
|
|
else:
|
|
module.fail_json(msg="unable to find %s. Exception message: %s" % (config_file, e))
|
|
|
|
if mode in "getmaster":
|
|
status = get_master_status(cursor)
|
|
if not isinstance(status, dict):
|
|
status = dict(Is_Master=False, msg="Server is not configured as mysql master")
|
|
else:
|
|
status['Is_Master'] = True
|
|
module.exit_json(**status)
|
|
|
|
elif mode in "getslave":
|
|
status = get_slave_status(cursor)
|
|
if not isinstance(status, dict):
|
|
status = dict(Is_Slave=False, msg="Server is not configured as mysql slave")
|
|
else:
|
|
status['Is_Slave'] = True
|
|
module.exit_json(**status)
|
|
|
|
elif mode in "changemaster":
|
|
chm=[]
|
|
chm_params = {}
|
|
result = {}
|
|
if master_host:
|
|
chm.append("MASTER_HOST=%(master_host)s")
|
|
chm_params['master_host'] = master_host
|
|
if master_user:
|
|
chm.append("MASTER_USER=%(master_user)s")
|
|
chm_params['master_user'] = master_user
|
|
if master_password:
|
|
chm.append("MASTER_PASSWORD=%(master_password)s")
|
|
chm_params['master_password'] = master_password
|
|
if master_port is not None:
|
|
chm.append("MASTER_PORT=%(master_port)s")
|
|
chm_params['master_port'] = master_port
|
|
if master_connect_retry is not None:
|
|
chm.append("MASTER_CONNECT_RETRY=%(master_connect_retry)s")
|
|
chm_params['master_connect_retry'] = master_connect_retry
|
|
if master_log_file:
|
|
chm.append("MASTER_LOG_FILE=%(master_log_file)s")
|
|
chm_params['master_log_file'] = master_log_file
|
|
if master_log_pos is not None:
|
|
chm.append("MASTER_LOG_POS=%(master_log_pos)s")
|
|
chm_params['master_log_pos'] = master_log_pos
|
|
if relay_log_file:
|
|
chm.append("RELAY_LOG_FILE=%(relay_log_file)s")
|
|
chm_params['relay_log_file'] = relay_log_file
|
|
if relay_log_pos is not None:
|
|
chm.append("RELAY_LOG_POS=%(relay_log_pos)s")
|
|
chm_params['relay_log_pos'] = relay_log_pos
|
|
if master_ssl:
|
|
chm.append("MASTER_SSL=1")
|
|
if master_ssl_ca:
|
|
chm.append("MASTER_SSL_CA=%(master_ssl_ca)s")
|
|
chm_params['master_ssl_ca'] = master_ssl_ca
|
|
if master_ssl_capath:
|
|
chm.append("MASTER_SSL_CAPATH=%(master_ssl_capath)s")
|
|
chm_params['master_ssl_capath'] = master_ssl_capath
|
|
if master_ssl_cert:
|
|
chm.append("MASTER_SSL_CERT=%(master_ssl_cert)s")
|
|
chm_params['master_ssl_cert'] = master_ssl_cert
|
|
if master_ssl_key:
|
|
chm.append("MASTER_SSL_KEY=%(master_ssl_key)s")
|
|
chm_params['master_ssl_key'] = master_ssl_key
|
|
if master_ssl_cipher:
|
|
chm.append("MASTER_SSL_CIPHER=%(master_ssl_cipher)s")
|
|
chm_params['master_ssl_cipher'] = master_ssl_cipher
|
|
if master_auto_position:
|
|
chm.append("MASTER_AUTO_POSITION = 1")
|
|
try:
|
|
changemaster(cursor, chm, chm_params)
|
|
except MySQLdb.Warning, e:
|
|
result['warning'] = str(e)
|
|
except Exception, e:
|
|
module.fail_json(msg='%s. Query == CHANGE MASTER TO %s' % (e, chm))
|
|
result['changed']=True
|
|
module.exit_json(**result)
|
|
elif mode in "startslave":
|
|
started = start_slave(cursor)
|
|
if started is True:
|
|
module.exit_json(msg="Slave started ", changed=True)
|
|
else:
|
|
module.exit_json(msg="Slave already started (Or cannot be started)", changed=False)
|
|
elif mode in "stopslave":
|
|
stopped = stop_slave(cursor)
|
|
if stopped is True:
|
|
module.exit_json(msg="Slave stopped", changed=True)
|
|
else:
|
|
module.exit_json(msg="Slave already stopped", changed=False)
|
|
elif mode in "resetslave":
|
|
reset = reset_slave(cursor)
|
|
if reset is True:
|
|
module.exit_json(msg="Slave reset", changed=True)
|
|
else:
|
|
module.exit_json(msg="Slave already reset", changed=False)
|
|
elif mode in "resetslaveall":
|
|
reset = reset_slave_all(cursor)
|
|
if reset is True:
|
|
module.exit_json(msg="Slave reset", changed=True)
|
|
else:
|
|
module.exit_json(msg="Slave already reset", changed=False)
|
|
|
|
# import module snippets
|
|
from ansible.module_utils.basic import *
|
|
from ansible.module_utils.mysql import *
|
|
main()
|
|
warnings.simplefilter("ignore")
|