apiVersion: apps/v1
kind: Deployment
metadata:
  name: postgres
  namespace: nextcloud
spec:
  replicas: 1
  strategy:
    type: Recreate
  selector:
    matchLabels:
      app: postgres
  template:
    metadata:
      labels:
        app: postgres
    spec:
      containers:
        - image: postgres:12.2-alpine
          imagePullPolicy: IfNotPresent
          name: postgres
          env:
            - name: POSTGRES_USER
              valueFrom:
                secretKeyRef:
                  name: postgres
                  key: POSTGRES_USER
            - name: POSTGRES_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: postgres
                  key: POSTGRES_PASSWORD
          resources:
            requests:
              memory: "128Mi"
              cpu: "100m"
            limits:
              memory: "512Mi"
              cpu: "1000m"
          livenessProbe:
            tcpSocket:
              port: 5432
            initialDelaySeconds: 15
            periodSeconds: 30
            timeoutSeconds: 5
            successThreshold: 1
            failureThreshold: 2
          ports:
            - containerPort: 5432
          volumeMounts:
            - name: postgres-data
              mountPath: /var/lib/postgresql/data
      volumes:
        - name: postgres-data
          hostPath:
            path: /opt/nextcloud/postgres
            type: Directory