Keycloak Operator creates ServiceMonitor to scrape port/endpoint that doesn't exist

Area

operator

Describe the bug

Keycloak Operator creates a ServiceMonitor that points to a port or endpoint that is not reachable and TargetDown alerts are firing

Version

quay.io/keycloak/keycloak-operator:19.0.2-legacy

Expected behavior

ServiceMonitor and Service are rendered without inexisting ports

Actual behavior

Inexisting ports are rendered on Service and ServiceMonitor for the Operator

 apiVersion: monitoring.coreos.com/v1
 kind: ServiceMonitor
 metadata:
   labels:
     monitoring-key: middleware
     name: keycloak-operator
   name: keycloak-operator-metrics
   namespace: keycloak
 spec:
   endpoints:
   - bearerTokenSecret:
       key: ""
     port: http-metrics
   - bearerTokenSecret:
       key: ""
     port: cr-metrics
   namespaceSelector: {}
   selector:
     matchLabels:
       monitoring-key: middleware
       name: keycloak-operator

==>

 apiVersion: v1
 kind: Service
 metadata:
   labels:
     monitoring-key: middleware
     name: keycloak-operator
   name: keycloak-operator-metrics
   namespace: keycloak
 spec:
   ports:
   - name: http-metrics
     port: 8383
     protocol: TCP
     targetPort: 8383
   - name: cr-metrics
     port: 8686
     protocol: TCP
     targetPort: 8686
   selector:
     name: keycloak-operator
   sessionAffinity: None
   type: ClusterIP

create an interactive shell into an operator pod

$ curl localhost:8686
curl: (7) Failed to connect to localhost port 8686: Connection refused

How to Reproduce?

# Prometheus operator
helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
helm repo update
helm install -n keycloak -create-namespace prom prometheus-community/kube-prometheus-stack

# Keycloack Operator
git clone https://github.com/keycloak/keycloak-operator.git
git checkout 19.0.2
kubectl apply -k keycloak-operator/deploy

Anything else?

Reference: https://github.com/keycloak/keycloak-operator/blob/a18f7c28134196205a0813b3eaca1f0de3b21580/cmd/manager/main.go#L52

keycloak / keycloak-operator

Keycloak Operator creates ServiceMonitor to scrape port/endpoint that doesn't exist #591