Add Kubernetes manifests for Ghostfolio application including PVC, Service, Deployment, and SealedSecret

cluster/apps/ghostfolio/ghostfolio-pvc.yml

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+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: longhorn-ghostfolio
+  namespace: default
+spec:
+  accessModes:
+    - ReadWriteMany
+  storageClassName: longhorn
+  resources:
+    requests:
+      storage: 5Gi

cluster/apps/ghostfolio/ghostfolio-svc.yml

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+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: ghostfolio-service
+  namespace: default
+spec:
+  type: NodePort
+  selector:
+    app: ghostfolio
+  ports:
+  - port: 3333
+    targetPort: 3333
+    nodePort: 3232
+    protocol: TCP

cluster/apps/ghostfolio/ghostfolio.yml

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+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: ghostfolio
+  namespace: default
+spec:
+  selector:
+    matchLabels:
+      app: ghostfolio
+  template:
+    metadata:
+      labels:
+        app: ghostfolio
+    spec:
+      initContainers:
+      - name: cleanup-postgres
+        image: busybox
+        command:
+        - /bin/sh
+        - -c
+        - rm -rf /var/lib/postgresql/data/lost+found
+        volumeMounts:
+        - name: ghostfolio-data
+          mountPath: /var/lib/postgresql/data
+      - name: redis
+        image: docker.io/library/redis:alpine
+        command:
+        - /bin/sh
+        - -c
+        - redis-server --requirepass "$(redis-password)"
+        envFrom:
+        - secretRef:
+            name: ghostfolio-secrets
+        restartPolicy: Always
+        securityContext:
+          runAsUser: 999
+          runAsGroup: 1000
+          capabilities:
+            drop:
+            - ALL
+          allowPrivilegeEscalation: false
+        env:
+        - name: REDIS_HOST
+          value: "redis"
+        - name: REDIS_PORT
+          value: "6379"
+        - name: REDIS_PASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: ghostfolio-secrets
+              key: redis-password
+      - name: postgres
+        image: docker.io/library/postgres:15-alpine
+        restartPolicy: Always
+        securityContext:
+          capabilities:
+            drop:
+            - ALL
+            add:
+            - CHOWN
+            - DAC_READ_SEARCH
+            - FOWNER
+            - SETGID
+            - SETUID
+          allowPrivilegeEscalation: false
+        env:
+        - name: POSTGRES_USER
+          value: "ghostfolio"
+        - name: POSTGRES_DB
+          value: "ghostfolio"
+        - name: POSTGRES_PASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: ghostfolio-secrets
+              key: postgres-password
+      containers:
+      - name: ghostfolio
+        image: docker.io/ghostfolio/ghostfolio:latest
+        securityContext:
+          capabilities:
+            drop:
+            - ALL
+          allowPrivilegeEscalation: false
+        ports:
+        - containerPort: 3333
+        volumeMounts:
+        - name: ghostfolio-data
+          mountPath: /var/lib/postgresql/data
+        env:
+        - name: REDIS_HOST
+          value: "localhost"
+        - name: REDIS_PORT
+          value: "6379"
+        - name: REDIS_PASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: ghostfolio-secrets
+              key: redis-password
+        - name: POSTGRES_DB
+          value: "ghostfolio"
+        - name: POSTGRES_USER
+          value: "ghostfolio"
+        - name: POSTGRES_PASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: ghostfolio-secrets
+              key: postgres-password
+        - name: ACCESS_TOKEN_SALT
+          valueFrom:
+            secretKeyRef:
+              name: ghostfolio-secrets
+              key: access-token-salt
+        - name: JWT_SECRET_KEY
+          valueFrom:
+            secretKeyRef:
+              name: ghostfolio-secrets
+              key: jwt-secret-key
+        - name: DATABASE_URL
+          value: "postgresql://ghostfolio:akshun9501@localhost:5432/ghostfolio?connect_timeout=300&sslmode=prefer"
+      volumes:
+      - name: ghostfolio-data
+        persistentVolumeClaim:
+          claimName: longhorn-ghostfolio