Docker image with redis built and installed from source.
The cluster is 6 redis instances running with 3 master & 3 slaves, one slave for each master. They run on ports 7000 to 7005.
It also contains 2 standalone instances that is not part of the cluster. They are running on port 7006 & 7007
It will allways build the latest commit in the 3.0 branch https://github.com/antirez/redis/tree/3.0
How to setup docker and start the cluster image.
Install docker on your system. 1.0 or higher is recommended. Instructions can be found at http://docs.docker.com/en/latest/installation/. It is also reccomended to add the current user to docker system group to remove the need to add sudo to each docker call.
Download the latest build from docker hub with docker pull grokzen/redis-cluster
To build the image run either make build or make rebuild. It will be built to the image name grokzen/redis-cluster.
To start the image run make run. It will be started in the background. To gain access to the running image you can get a bash session by running make bash.
Test to connect to the cluster with redis-cli -p 7000. If you do not want to install a redis server on your host to get access to redis-cli you can run a exec command to run it inside the docker container. It can be done with docker exec -it <ContainerID> /redis/src/redis-cli -p 7000 where <ContainerID> can be found inside the CID file at /tmp/grokzen-redis-cluster.cid or via docker ps.
If you get a error when rebuilding the image that docker can't do dns lookup on archive.ubuntu.com then you need to modify docker to use google IPv4 DNS lookups. Read the following link http://dannytsang.co.uk/docker-on-digitalocean-cannot-resolve-hostnames/ and uncomment the line in /etc/default/docker and restart your docker daemon and it should be fixed.