Kubernetes Redis HA and exposing redis to things outside of the container
The redis sentinel service file from your link (https://github.com/kubernetes/kubernetes/blob/master/examples/storage/redis/redis-sentinel-service.yaml) will expose the pods within the cluster. For external access (from outside your cluster) you can use a NodePort:
apiVersion: v1kind: Servicemetadata: labels: name: sentinel role: service name: redis-sentinelspec: type: NodePort ports: - port: 26379 targetPort: 26379 nodePort: 30369 selector: redis-sentinel: "true"This would expose the port 30369 on all your hosts from the outside world to the redis sentinel service.
Several remarks on this:* Firewall: Security in redis is limited, so prevent unwanted access before opening the port* The allowed to be assigned nodePort range is from 30000 to 32767, so be creative with this limitation.