---

apiVersion: apps/v1
kind: Deployment
metadata:
  name: bullish-database
spec:
  selector:
    matchLabels:
      app: bullish-database
  replicas: 1
  strategy:
    type: RollingUpdate
    rollingUpdate:
      maxUnavailable: 0
      maxSurge: 1
  template:
    metadata:
      labels:
        app: bullish-database
    spec:
      volumes:
        - name: postgres-data
          hostPath:
            path: "/var/k8s-pv/bullish/postgres"
            type: DirectoryOrCreate

      containers:
        - name: postgres
          image: postgres:13.1-alpine
          envFrom:
            - secretRef:
                name: bullish-secret
          volumeMounts:
            - name: postgres-data
              mountPath: /var/lib/postgresql/data/pgdata

---

apiVersion: v1
kind: Service
metadata:
  name: bullish-database
  labels:
    app: bullish-database
spec:
  type: ClusterIP
  selector:
    app: bullish-database
  ports:
  - port: 5432
    targetPort: 5432
    protocol: TCP

...