apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: postgres
spec:
  selector:
    matchLabels:
      app: postgres
  serviceName: postgres
  replicas: 1
  template:
    metadata:
      labels:
        app: postgres
    spec:
      containers:
      - name: postgres
        image: postgres:latest
        resources:
          limits:
            memory: "500Mi"
            cpu: "250m"
        ports:
          - containerPort: 5432
        env:
          - name: POSTGRES_DB
            value: sudobot
          - name: POSTGRES_USER
            value: postgres
          - name: POSTGRES_PASSWORD
            valueFrom:
              secretKeyRef:
                name: sudobot
                key: db_password
        volumeMounts:
          - name: postgres-pv
            mountPath: /var/lib/postgresql/data
          - name: postgres-config
            mountPath: /etc/postgresql
      volumes:
        - name: postgres-pv
          persistentVolumeClaim:
            claimName: postgres-pvc
        - name: postgres-config
          configMap:
            name: postgres-config
            defaultMode: 0755
  volumeClaimTemplates:
  - metadata:
      name: postgres-pv
    spec:
      accessModes: [ "ReadWriteOnce" ]
      resources:
        requests:
          storage: 5Gi