split db and app into two deployments

clusters/default/monitoring/jellystat/jellystat-db.yml

@@ -0,0 +1,42 @@
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: jellystat-db
+  namespace: monitoring
+spec:
+  strategy:
+    type: Recreate
+  replicas: 1
+  selector:
+    matchLabels:
+      app: jellystat-db
+  template:
+    metadata:
+      labels:
+        app: jellystat-db
+    spec:
+      containers:
+      - name: jellystat-db
+        image: postgres:alpine
+        ports:
+        - containerPort: 5432
+        env:
+        - name: POSTGRES_PASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: jellystat-secret
+              key: password
+        - name: POSTGRES_DB
+          value: "jfstat"
+        - name: POSTGRES_USER
+          value: "postgres"
+        - name: PGDATA
+          value: /mnt/postgres/data
+        volumeMounts:
+        - name: postgres-data
+          mountPath: /mnt/postgres
+      volumes:
+      - name: postgres-data
+        persistentVolumeClaim:
+          claimName: jellystat-longhorn

clusters/default/monitoring/jellystat/jellystat-svc.yml

@@ -15,3 +15,16 @@ spec:
   - port: 3001
     targetPort: 3000
     protocol: TCP
+
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: jellystat-db-service
+  namespace: monitoring
+spec:
+  selector:
+    app: jellystat-db
+  ports:
+  - port: 5432
+    targetPort: 5432

clusters/default/monitoring/jellystat/jellystat.yml

@@ -17,55 +17,35 @@ spec:
         app: jellystat
     spec:
       initContainers:
-      - name: jellystat-db
-        image: postgres:alpine
-        restartPolicy: Always
-        ports:
-        - containerPort: 5432
-        env:
-        - name: POSTGRES_DB
-          value: "jfstat"
-        - name: POSTGRES_USER
-          value: "postgres"
-        - name: POSTGRES_PASSWORD
-          valueFrom:
-            secretKeyRef:
-              name: jellystat-secret
-              key: password
-        - name: PGDATA
-          value: /mnt/postgres/data
-        volumeMounts:
-        - name: postgres-data
-          mountPath: /mnt/postgres
+      - name: wait-for-db
+        image: busybox
+        command: ['sh', '-c', 'until nc -z -v -w30 jellystat-db-service 5432; do echo "Waiting for database..."; sleep 5; done;']
       containers:
       - name: jellystat
         image: cyfershepard/jellystat:1.1.6
         ports:
         - containerPort: 3000
         env:
-        - name: POSTGRES_USER
-          value: "postgres"
+        - name: JWT_SECRET
+          valueFrom:
+            secretKeyRef:
+              name: jellystat-secret
+              key: jwt
         - name: POSTGRES_PASSWORD
           valueFrom:
             secretKeyRef:
               name: jellystat-secret
               key: password
         - name: POSTGRES_IP
-          value: "localhost"
+          value: "jellystat-db-service"
         - name: POSTGRES_PORT
           value: "5432"
-        - name: JWT_SECRET
-          valueFrom:
-            secretKeyRef:
-              name: jellystat-secret
-              key: jwt
+        - name: POSTGRES_USER
+          value: "postgres"
         volumeMounts:
         - name: backups
           mountPath: /app/backend/backup-data
       volumes:
-      - name: postgres-data
-        persistentVolumeClaim:
-          claimName: jellystat-longhorn
       - name: backups
         persistentVolumeClaim:
           claimName: jellystat-backups-longhorn