Base docker image to run a Redis server
To create the image quay.io/chalkchisel/redis, execute the following command on the chalkchisel-redis folder:
docker build -t quay.io/chalkchisel/redis .
Run the following command to start Redis:
docker run -d -p 6379:6379 quay.io/chalkchisel/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!
If you want to use a preset password instead of a random generated one, you can
set the environment variable REDISCONF_PASS to your specific password when running the container:
docker run -d -p 6379:6379 -e REDISCONF_PASS="mypass" quay.io/chalkchisel/redis
You can now test your deployment:
redis-cli -a mypass
If you want to disable password authentication, you can set REDISCONF_PASS to **None**:
docker run -d -p 6379:6379 -e REDISCONF_PASS="**None**" quay.io/chalkchisel/redis
If you want to pass in any configuration variable to redis, set it as an environment variable with a REDISCONF_ prefix. For example, if you want to set tcp-keepalive 60, execute the following:
docker run -d -p 6379:6379 -e REDISCONF_TCP_KEEPALIVE=60 quay.io/chalkchisel/redis
For a full list of configuration options, check this commented redis.conf file
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 REDISCONF_MAXMEMORY_POLICY="allkeys-lru" -e REDISCONF_MAXMEMORY="256mb" quay.io/chalkchisel/redis
More info at redis.io
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 REDISCONF_APPENDONLY=yes -e REDISCONF_APPENDFSYNC=always quay.io/chalkchisel/redis
Please note that this will impact performance. For a more lightweight persistence by saving every second instead of every instruction, use REDISCONF_APPENDFSYNC=everysec instead. More info at redis.io