apiVersion: v1
kind: Namespace
metadata:
  name: redis-demo
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: redis
  namespace: redis-demo
spec:
  serviceName: redis-headless
  replicas: 3
  selector:
    matchLabels:
      app: redis
  template:
    metadata:
      labels:
        app: redis
    spec:
      containers:
      - name: redis
        image: redis:7-alpine
        ports:
        - containerPort: 6379
        command:
        - redis-server
        - --bind
        - "0.0.0.0"
        - --port
        - "6379"
        - --replica-announce-ip
        - $(POD_NAME).redis-headless.redis-demo.svc.cluster.local
        env:
        - name: POD_NAME
          valueFrom:
            fieldRef:
              fieldPath: metadata.name
        volumeMounts:
        - name: redis-data
          mountPath: /data
      volumes:
      - name: redis-data
        emptyDir: {}
---
apiVersion: v1
kind: Service
metadata:
  name: redis-headless
  namespace: redis-demo
  labels:
    app: redis
spec:
  clusterIP: None
  ports:
  - port: 6379
    name: redis
  selector:
    app: redis
---
apiVersion: v1
kind: Service
metadata:
  name: redis
  namespace: redis-demo
  labels:
    app: redis
spec:
  ports:
  - port: 6379
    name: redis
  selector:
    app: redis