Helm Chart Deployment breaks when updating labels

[ehlertjd]

Actions before raising this issue

• I searched the existing issues and did not find anything similar.
• I read/searched the docs

Steps to Reproduce

1. Deploy the CVAT helm chart
2. Add a new label to the helm values file (e.g. under cvat.backend.labels)
3. Try to deploy the updated helm chart

Observe errors trying to patch deployment (or statefulset) resources:

cannot patch "cvat-cvat-backend-server" with kind Deployment: Deployment.apps "cvat-cvat-backend-server" is invalid: spec.selector: Invalid value: v1.LabelSelector{MatchLabels:map[string]string{"app":"cvat-app", "app.kubernetes.io/instance":"cvat-cvat", "app.kubernetes.io/managed-by":"Helm", "app.kubernetes.io/name":"cvat", "app.kubernetes.io/version":"latest", "my-new-label":"value", "component":"server", "helm.sh/chart":"cvat", "tier":"backend"}, MatchExpressions:[]v1.LabelSelectorRequirement(nil)}: field is immutable

Expected Behavior

The helm chart should deploy successfully, and deployments and statefulsets should be patched with the new labels.

Possible Solution

Use the selectorLabels macro for matchLabels instead of all applied podLabels

Context

No response

Environment

- CVAT 2.28.0 (but present in main)
- Kubernetes + Helm deployment