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# redis – Various redis commands, slave and flush

- Synopsis

- Requirements

- Parameters

- Notes

- Examples

- Status

## Synopsis

- Unified utility to interact with redis instances.

## Requirements

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

- redis

## Parameters

Parameter | Choices/Defaults | Comments
--- | --- | ---
command - / required | Choices: config flush slave | The selected redis command `config` (new in 1.6), ensures a configuration setting on an instance. `flush` flushes all the instance or a specified db. `slave` sets a redis instance in slave or master mode.
db - |  | The database to flush (used in db mode) [flush command]
flush_mode - | Choices: all ← db | Type of flush (all the dbs in a redis instance or a specific one) [flush command]
login_host - | Default: "localhost" | The host running the database
login_password - |  | The password used to authenticate with (usually not used)
login_port - | Default: 6379 | The port to connect to
master_host - |  | The host of the master instance [slave command]
master_port - |  | The port of the master instance [slave command]
name - |  | A redis config key.
slave_mode - | Choices: master slave ← | the mode of the redis instance [slave command]
value - |  | A redis config value.

## Notes

Note

- Requires the redis-py Python package on the remote host. You can install it with pip (pip install redis) or with a package manager. https://github.com/andymccurdy/redis-py

- If the redis master instance we are making slave of is password protected this needs to be in the redis.conf in the masterauth variable

## Examples

    - name: Set local redis instance to be slave of melee.island on port 6377
      redis:
        command: slave
        master_host: melee.island
        master_port: 6377

    - name: Deactivate slave mode
      redis:
        command: slave
        slave_mode: master

    - name: Flush all the redis db
      redis:
        command: flush
        flush_mode: all

    - name: Flush only one db in a redis instance
      redis:
        command: flush
        db: 1
        flush_mode: db

    - name: Configure local redis to have 10000 max clients
      redis:
        command: config
        name: maxclients
        value: 10000

    - name: Configure local redis to have lua time limit of 100 ms
      redis:
        command: config
        name: lua-time-limit
        value: 100

## Status

- This module is not guaranteed to have a backwards compatible interface. [preview]

- This module is maintained by the Ansible Community. [community]

### Authors

- Xabier Larrakoetxea (@slok)

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