apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: postgres-pvc
  namespace: web-portal
spec:
  accessModes: [ReadWriteOnce]
  resources:
    requests:
      storage: 1Gi
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: postgres
  namespace: web-portal
spec:
  replicas: 1
  selector:
    matchLabels:
      app: postgres
  template:
    metadata:
      labels:
        app: postgres
    spec:
      containers:
      - name: postgres
        image: postgres:15-alpine
        env:
        - name: POSTGRES_DB
          value: portaldb
        - name: POSTGRES_USER
          value: portaluser
        - name: POSTGRES_PASSWORD
          valueFrom:
            secretKeyRef:
              name: portal-secrets
              key: db-password
        ports:
        - containerPort: 5432
        volumeMounts:
        - name: postgres-data
          mountPath: /var/lib/postgresql/data
        readinessProbe:
          exec:
            command: [pg_isready, -U, portaluser, -d, portaldb]
          initialDelaySeconds: 5
          periodSeconds: 5
      volumes:
      - name: postgres-data
        persistentVolumeClaim:
          claimName: postgres-pvc
---
apiVersion: v1
kind: Service
metadata:
  name: postgres-service
  namespace: web-portal
spec:
  selector:
    app: postgres
  ports:
  - port: 5432
    targetPort: 5432