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docker-redis

Base docker image to run a Redis server

Usage

To create the image 13genius/redis, execute the following command on the 13genius-redis folder:

docker build -t 13genius/redis .

Running the Redis server

Run the following command to start Redis:

docker run -d -p 6379:6379 13genius/redis

The first time that you run your container, a new random password will be set.
To get the password, check the logs of the container by running:

docker logs <CONTAINER_ID>

You will see an output like the following:

========================================================================
You can now connect to this Redis server using:

    redis-cli -a 5elsT6KtjrqVtOitprnDm7M9Vgz0MGgu -h <host> -p <port>

Please remember to change the above password as soon as possible!
========================================================================

In this case, 5elsT6KtjrqVtOitprnDm7M9Vgz0MGgu is the password set.
You can then connect to Redis:

redis-cli -a 5elsT6KtjrqVtOitprnDm7M9Vgz0MGgu

Done!

Setting a specific password

If you want to use a preset password instead of a random generated one, you can
set the environment variable REDIS_PASS to your specific password when running the container:

docker run -d -p 6379:6379 -e REDIS_PASS="mypass" genius/redis

You can now test your deployment:

redis-cli -a mypass

If you want to disable password authentication, you can set REDIS_PASS to **None**:

docker run -d -p 6379:6379 -e REDIS_PASS="**None**" genius/redis

Configuring Redis

If you want to pass in any configuration variable to redis, set it as an environment variable with a REDIS_ prefix. For example, if you want to set tcp-keepalive 60, execute the following:

docker run -d -p 6379:6379 -e REDIS_TCP_KEEPALIVE=60 genius/redis

For a full list of configuration options, check this commented redis.conf file

Configuring Redis as a LRU cache

In order to run Redis as a cache that will delete older entries when the memory fills up
provide the following additional environment variables:

docker run -d -p 6379:6379 -e REDIS_MAXMEMORY_POLICY="allkeys-lru" -e REDIS_MAXMEMORY="256mb" genius/redis

More info at redis.io

Configuring Redis to use AOF

If you want Redis to store data in a volume to prevent data from disappearing should you restart the container, set the following environment variables:

docker run -d -p 6379:6379 -e REDIS_APPENDONLY=yes -e REDIS_APPENDFSYNC=always genius/redis

Please note that this will impact performance. For a more lightweight persistence by saving every second instead of every instruction, use REDIS_APPENDFSYNC=everysec instead. More info at redis.io

by https://13genius.com

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