Redis Operator: Label Propagation Issue with HarborCluster StatefulSets

[anushkaa2607]

Description

The Redis Operator currently propagates all labels from HarborCluster to both the template labels and selectors of the managed StatefulSets. This behavior conflicts with the immutability of StatefulSet selectors, leading to update failures.

What would you like to be added

• A mechanism within the Redis Operator to prevent label propagation from resources to StatefulSet selectors.

• The ability to add labels without affecting the labels and selectors of the StatefulSet.

Why is this needed

• StatefulSet Immutability: Kubernetes enforces the immutability of StatefulSet selectors, i.e. they can’t be updated

• Update Failures: Attempting to update a StatefulSet with extra selector labels results in errors, hindering management operations.

• Flexibility: Decoupling template labels and selectors provides greater flexibility in managing StatefulSets. It will allow us to get clear distinction between labels used for resource identification and those applied for organizational purposes.

References

Kubernetes Issue: kubernetes/kubernetes#90519 (Discusses the immutability of StatefulSet selectors)