# mysql_replication – Manage MySQL replication

- Synopsis
- Requirements
- Parameters
- Notes
- Examples
- Status

## 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

- This module is not guaranteed to have a backwards compatible interface. [preview]
- This module is maintained by the Ansible Community. [community]

### Authors

- Balazs Pocze (@banyek)

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