mysql_replication – Manage MySQL replication

Synopsis

  • Manages MySQL server replication, slave, master status get and change master host.

Requirements

The below requirements are needed on the host that executes this module.

  • PyMySQL (Python 2.7 and Python 3.X), or
  • MySQLdb (Python 2.x)

Parameters

Parameter Choices/Defaults Comments
ca_cert
path
The path to a Certificate Authority (CA) certificate. This option, if used, must specify the same certificate as used by the server.

aliases: ssl_ca
client_cert
path
The path to a client public key certificate.

aliases: ssl_cert
client_key
path
The path to the client private key.

aliases: ssl_key
config_file
path
Default:
"~/.my.cnf"
Specify a config file from which user and password are to be read.
connect_timeout
integer
Default:
30
The connection timeout when connecting to the MySQL server.
login_host
string
Default:
"localhost"
Host running the database.
login_password
string
The password used to authenticate with.
login_port
integer
Default:
3306
Port of the MySQL server. Requires login_host be defined as other than localhost if login_port is used.
login_unix_socket
string
The path to a Unix domain socket for local connections.
login_user
string
The username used to authenticate with.
master_auto_position
boolean
    Choices:
  • no
  • yes
Whether the host uses GTID based replication or not.
master_connect_retry
integer
Same as mysql variable.
master_host
string
Same as mysql variable.
master_log_file
string
Same as mysql variable.
master_log_pos
integer
Same as mysql variable.
master_password
string
Same as mysql variable.
master_port
integer
Same as mysql variable.
master_ssl
boolean
    Choices:
  • no
  • yes
Same as mysql variable.
master_ssl_ca
string
Same as mysql variable.
master_ssl_capath
string
Same as mysql variable.
master_ssl_cert
string
Same as mysql variable.
master_ssl_cipher
string
Same as mysql variable.
master_ssl_key
string
Same as mysql variable.
master_user
string
Same as mysql variable.
mode
string
    Choices:
  • getslave ←
  • getmaster
  • changemaster
  • stopslave
  • startslave
  • resetslave
  • resetslaveall
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)
relay_log_file
string
Same as mysql variable.
relay_log_pos
integer
Same as mysql variable.

Notes

Note

  • Requires the PyMySQL (Python 2.7 and Python 3.X) or MySQL-python (Python 2.X) package on the remote host. The Python package may be installed with apt-get install python-pymysql (Ubuntu; see apt) or yum install python2-PyMySQL (RHEL/CentOS/Fedora; see yum). You can also use dnf install python2-PyMySQL for newer versions of Fedora; see dnf.
  • Both login_password and login_user are required when you are passing credentials. If none are present, the module will attempt to read the credentials from ~/.my.cnf, and finally fall back to using the MySQL default login of ‘root’ with no password.

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

Status

Authors

  • Balazs Pocze (@banyek)

Hint

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