feat: init container to wait for patroni to be available (#41)

* feat: create init container to wait for db pods

* feat: update init container script

* feat: fix pre-commit

charts/keycloak/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v1
 name: sso-keycloak
-version: 1.15.0
+version: 1.15.1
 appVersion: 7.6.39-build.1
 description: Open Source Identity and Access Management For Modern Applications and Services
 dependencies:

charts/keycloak/templates/deployment.yaml

@@ -23,6 +23,34 @@ spec:
       {{- end }}
       labels: {{ include "sso-keycloak.labels" . | nindent 8 }}
     spec:
+      initContainers:
+        - name: {{ .Chart.Name }}-init
+          image: openshift/origin-cli:latest
+          command:
+            - "/bin/sh"
+            - "-c"
+            - |
+              namespace="{{ .Release.Namespace }}"
+              name={{ .Values.patroni.nameOverride }}
+              echo "Current Namespace: $namespace"
+              echo "Patroni Statefulset: $name"
+              check_rollout_status(){
+                replicas_desired={{ .Values.patroni.replicaCount }}
+                replicas_current=$(oc get -n $namespace statefulset $name -o jsonpath='{.status.currentReplicas}')
+                # Set replicas_current to zero if it is not available
+                replicas_current="${replicas_current:-0}"
+                echo "Replicas desired: ${replicas_desired}, Replicas current: ${replicas_current}"
+                if [ "${replicas_current}" -eq "${replicas_desired}" ]; then
+                    return 0  # Rollout is complete
+                else
+                    return 1  # Rollout is not complete
+                fi
+              }
+              while ! check_rollout_status; do
+                echo "Waiting for StatefulSet {{ .Values.patroni.nameOverride }} rollout to complete..."
+                sleep 5
+              done
+
       containers:
         - name: {{ .Chart.Name }}
           image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"