use statefulSets and readinessProbes instead of initContainers

clusters/default/git-ops/gitea/gitea.yml

@@ -16,20 +16,19 @@ spec:
       labels:
         app: gitea-app
     spec:
-      initContainers:
-      - name: wait-for-db
-        image: busybox
-        command:
-        - sh
-        - -c
-        - |
-          until nc -z -v -w30 gitea-db-service 5432; do
-            echo "Waiting for psql database to be ready"
-            sleep 2
-          done
       containers:
       - name: gitea
         image: gitea/gitea:1.25.2
+        readinessProbe:
+          exec:
+            command:
+            - sh
+            - -c
+            - |
+              nc -z gitea-db.git-ops.svc.cluster.local 5432
+          initialDelaySeconds: 5
+          periodSeconds: 5
+          failureThreshold: 3
         ports:
         - containerPort: 22
           name: ssh
@@ -43,7 +42,7 @@ spec:
         - name: GITEA__database__DB_TYPE
           value: "postgres"
         - name: GITEA__database__HOST
-          value: "gitea-db-service:5432"
+          value: "gitea-db.git-ops.svc.cluster.local:5432"
         - name: GITEA__database__NAME
           value: "gitea"
         - name: GITEA__database__USER