Description of problem:

When deploying a MultiClusterObservability resource, it appears the name of the MultiClusterObservability CR cannot exceed 15 characters. This is due to the 63 character label limit in DNS.

Version-Release number of selected component (if applicable):

2.2.3

How reproducible:

Always

Steps to Reproduce:
1. Deploy a MultiClusterObservability resource with a name greater than 15 characters.

Actual results:

Partial roll out of the observability stack. Some StatefuleSets fail to deploy because of the DNS issue.

Expected results:

Operator prevents partial rollout of stack.

Additional info:

multiclusterobservability-cr.yaml:

apiVersion: observability.open-cluster-management.io/v1beta1
kind: MultiClusterObservability
metadata:
  name: umbrella-observability
spec:
  availabilityConfig: High
  imagePullPolicy: Always
  imagePullSecret: multiclusterhub-operator-pull-secret
  observabilityAddonSpec:
    enableMetrics: true
    interval: 60
  retentionResolution1h: 30d
  retentionResolution5m: 14d
  retentionResolutionRaw: 5d
  storageConfigObject:
    metricObjectStorage:
      key: thanos.yaml
      name: thanos-object-storage
    statefulSetSize: 10Gi
    statefulSetStorageClass: thin

Error:

$ oc describe statefulset umbrella-observability-observatorium-thanos-receive-default
...
Events:
  Type     Reason        Age                   From                    Message
  ----     ------        ----                  ----                    -------
  Warning  FailedCreate  6m54s (x20 over 23m)  statefulset-controller  create Pod umbrella-observability-observatorium-thanos-receive-default-0 in StatefulSet umbrella-observability-observatorium-thanos-receive-default failed error: Pod "umbrella-observability-observatorium-thanos-receive-default-0" is invalid: metadata.labels: Invalid value: "umbrella-observability-observatorium-thanos-receive-default-5f478dbb5": must be no more than 63 characters