Docker image for redis. This image is designed to be used with kubernetes, it may work outside kubernetes as well.
It is highly recommended to read through redis sentinel documentation.
First of all create a single replica pod of redis and redis-sentinel. Both
containers will notice that ${REDIS_SENTINEL_SERVICE_HOST} and
${REDIS_SENTINEL_SERVICE_PORT} are empty and assume that this is an initial
bootstrap of redis. Redis sentinel will connect to the master at $(hostname -i) and start monitoring it.
kubectl create -f kube/redis-controller.yaml
Then you need to create redis sentinel service, which will become your redis sentinel endpoint for the following redis pods.
kubectl create -f kube/redis-sentinel-service.yaml
Once the service is up and running, you can check whether it is working properly. Run the following command in some temporary container.
redis-cli -h ${REDIS_SENTINEL_SERVICE_HOST} -p 26379 INFO
Next, we can start scaling our redis out. It is recommended to add redis and redis-sentinel replicas one by one.
kubectl scale rc redis --replicas=2
Wait a minute and check on the sentinel service redis-cli -h ${REDIS_SENTINEL_SERVICE_HOST} -p 26379 INFO, then scale to --replicas=3.