apiVersion: apps/v1
kind: Deployment
metadata:
  name: pg16
  namespace: infrastructure
  labels:
    app: pg16
spec:
  replicas: 1
  strategy:
    type: Recreate
  selector:
    matchLabels:
      app: pg16
  template:
    metadata:
      labels:
        app: pg16
    spec:
      containers:
      - name: postgres
        image: postgres:16
        ports:
        - containerPort: 5432
          name: postgres
        env:
        - name: POSTGRES_USER
          valueFrom:
            secretKeyRef:
              name: pg16-secret
              key: POSTGRES_USER
        - name: POSTGRES_PASSWORD
          valueFrom:
            secretKeyRef:
              name: pg16-secret
              key: POSTGRES_PASSWORD
        - name: PGDATA
          value: /var/lib/postgresql/data/pgdata
        volumeMounts:
        - name: postgres-data
          mountPath: /var/lib/postgresql/data
        - name: init-scripts
          mountPath: /docker-entrypoint-initdb.d
        resources:
          requests:
            memory: "512Mi"
            cpu: "500m"
          limits:
            memory: "2Gi"
            cpu: "2000m"
        livenessProbe:
          exec:
            command:
            - pg_isready
            - -U
            - postgres
          initialDelaySeconds: 30
          periodSeconds: 10
          timeoutSeconds: 5
        readinessProbe:
          exec:
            command:
            - pg_isready
            - -U
            - postgres
          initialDelaySeconds: 5
          periodSeconds: 5
          timeoutSeconds: 3
      volumes:
      - name: postgres-data
        persistentVolumeClaim:
          claimName: pg16-data
      - name: init-scripts
        configMap:
          name: pg16-init-script
          defaultMode: 0755