Which Redis sentinel server should I connect to while connecting to Redis?

Question

I am new to Redis and Kubernetes and have a Kubernetes cluster setup of 3 Redis and 3 Sentinel

kubernetes % kubectl -n redis get pods
NAME         READY   STATUS    RESTARTS   AGE
redis-0      1/1     Running   0          7d16h
redis-1      1/1     Running   0          7d15h
redis-2      1/1     Running   0          8d
sentinel-0   1/1     Running   0          9d
sentinel-1   1/1     Running   0          9d
sentinel-2   1/1     Running   0          9d

I have successfully connected the sentinel and Redis-master to each other and was able to test basic HA operations using Redis-cli by exec into the pods, now I wanna connect my external java application to this Redis-cluster,

Now best to my understanding we are supposed to connect to Sentinel and Sentinel will guide us Redis-master pod where write operations can be executed.

So I had a few doubts regarding this, Can I connect to any of the sentinel servers and be able to execute my operations or should I always connect to a master? if we are connecting to a sentinel and if the master Sentinel goes down, what should be the plan of action or best practices in this regard, I have read a few blogs but can't seem to reach a clear understanding?

What should I do to be able to connect my Spring boot to connect to this cluster? I read a bit on this too and it seems I can't connect to a minikube cluster directly from my IntelliJ/local machine and need to create an image and deploy it in a same namespace, is there any workaround for this?

Thanks

Answer 1

You should run sentinel as a sidecar container. sentilnel container would manage the master and slave and enables HA. you should connect to master for writes and slave for reads