Actually OOM relies on simple TCP port check for readiness
readinessProbe:
            tcpSocket:
              port: {{ .Values.service.internalPort }}
            initialDelaySeconds: {{ .Values.readiness.initialDelaySeconds }}
            periodSeconds: {{ .Values.readiness.periodSeconds }}

This would show SDNC container as ready, but karaf is not really up and running --> see SDNC-1475

We should use existing service /ready which checks status of karaf features.
readinessProbe:
httpGet:
path: /ready
port: {{ .Values.service.internalPort }}

till now ready-service is part of wt-features and is not available if sdnr.enabled=false

Task: provide ready service as default feature.

As soon as this is confirmed and available please raise request for OOM