Redis Replication service pointing to read-only replica

[diptripa]

What version of redis operator are you using?

redis-operator version: 0.15

Does this issue reproduce with the latest release? Yes

What operating system and processor architecture are you using (kubectl version)?

kubectl version Output

1.25.11

What did you do?

1. Created redis-replication using this manifest:

   ---
   apiVersion: redis.redis.opstreelabs.in/v1beta1
   kind: RedisReplication
   metadata:
   name: redis-replication
   #  annotations:
   #    redis.opstreelabs.in/skip-reconcile: "true"
   spec:
   clusterSize: 5
   kubernetesConfig:
   image: quay.io/opstree/redis:v7.0.5
   imagePullPolicy: IfNotPresent
   resources:
     requests:
       cpu: 200m
       memory: 256Mi
     limits:
       cpu: 200m
       memory: 256Mi
   storage:
   volumeClaimTemplate:
     spec:
       storageClassName: basic-nfs-rwx-retain
       accessModes: ["ReadWriteOnce"]
       resources:
         requests:
           storage: 50Gi
   redisExporter:
   enabled: true
   image: quay.io/opstree/redis-exporter:v1.44.0
   imagePullPolicy: Always
   # env:
   # - name: REDIS_EXPORTER_INCL_SYSTEM_METRICS
   #   value: "true"
   securityContext:
   runAsUser: 1000 

2. Changed some parameters like storage requests and cpu, memory requests.

3. Connected to service redis-replication:6379 from app.

What did you expect to see? That it is serving the cache without any issues.

What did you see instead?

15
You can't write against a read only replica.
14
200
13
You can't write against a read only replica.
12
200
11
You can't write against a read only replica.
10
200
9
You can't write against a read only replica.

[jwitko]

Same issue here. It would appear the there is no separate service created that targets the master specifically. It also appears this may be the intentional design and we have to use the sentinel setup to act as a proxy layer for this?

[SecretMineDE]

We have the same issue. A possible solution would be to use some kind of sidecar next to the redis replication containers to change the labels or have the operator do this.

[elrondwong]

Same issue here

[aysegulozkaya]

Same issue. Is there any solution?

[shubham-cmyk]

Didn't get time for this. I would fix this asap. Putting this in the next milestone

[elrondwong]

During concile patch role label of pods