---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: postgres
  namespace: internal-haproxy-openmanager
  labels:
    app: haproxy-openmanager
    component: postgres
spec:
  replicas: 1
  selector:
    matchLabels:
      app: haproxy-openmanager
      component: postgres
  template:
    metadata:
      labels:
        app: haproxy-openmanager
        component: postgres
    spec:
      serviceAccountName: haproxy-openmanager-postgres
      initContainers:
      - name: postgres-init
        image: postgres:15-alpine
        command: ['/bin/sh', '-c']
        args:
        - |
          # Create postgresql data subdirectory if it doesn't exist
          mkdir -p /var/lib/postgresql/data/pgdata
          
          # Remove lost+found if it exists (common in mounted volumes)
          rm -rf /var/lib/postgresql/data/lost+found 2>/dev/null || true
          
          echo "🔍 Checking PostgreSQL data directory..."
          
          # Check if database already exists
          if [ -d /var/lib/postgresql/data/pgdata ] && [ "$(ls -A /var/lib/postgresql/data/pgdata 2>/dev/null)" ]; then
            echo "✅ Existing database found - preserving data"
            echo "📊 Database will be reused (no data loss)"
          else
            echo "🆕 Empty database directory - init scripts will run automatically"
          fi
          
          # Set proper ownership (if allowed)
          chown -R $(id -u):$(id -g) /var/lib/postgresql/data/pgdata 2>/dev/null || true
          
          echo "✅ PostgreSQL data directory prepared - ready to start"
        volumeMounts:
        - name: postgres-storage
          mountPath: /var/lib/postgresql/data
      containers:
      - name: postgres
        image: postgres:15-alpine
        ports:
        - containerPort: 5432
          name: postgres
        env:
        - name: PGDATA
          value: /var/lib/postgresql/data/pgdata
        - name: POSTGRES_INITDB_ARGS
          value: "--auth-host=md5 --auth-local=trust"
        - name: POSTGRES_DB
          value: "haproxy_openmanager"
        - name: POSTGRES_USER
          value: "haproxy_user"
        envFrom:
        - secretRef:
            name: postgres-secret
        volumeMounts:
        - name: postgres-storage
          mountPath: /var/lib/postgresql/data

        resources:
          requests:
            memory: "256Mi"
            cpu: "250m"
          limits:
            memory: "2Gi"
            cpu: "1000m"
        livenessProbe:
          exec:
            command:
            - pg_isready
            - -U
            - haproxy_user
            - -d
            - haproxy_openmanager
          initialDelaySeconds: 30
          periodSeconds: 10
        readinessProbe:
          exec:
            command:
            - pg_isready
            - -U
            - haproxy_user
            - -d
            - haproxy_openmanager
          initialDelaySeconds: 5
          periodSeconds: 5
      volumes:
      - name: postgres-storage
        persistentVolumeClaim:
          claimName: postgres-pvc

---
apiVersion: v1
kind: Service
metadata:
  name: postgres
  namespace: internal-haproxy-openmanager
  labels:
    app: haproxy-openmanager
    component: postgres
spec:
  selector:
    app: haproxy-openmanager
    component: postgres
  ports:
  - port: 5432
    targetPort: 5432
    name: postgres
  type: ClusterIP