redis-ha-sentinel

redis-ha-sentinel

apiVersion: v1
kind: Pod
metadata:
  name: redis-master
  labels:
    app: sentinel
    role: master
spec:
  containers:
  - name: redis-master
    image: redis:4.0
    # env:
    # - name: MASTER
    #   value: "true"
    ports:
    - containerPort: 6379
      protocol: TCP
---
apiVersion: v1
kind: Service
metadata:
  name: redis-master
  labels:
    app: sentinel
    role: master
spec:
  type: ClusterIP
  selector:
    app: sentinel
    role: master
  ports:
  - protocol: TCP
    port: 6379
    targetPort: 6379

sentinel-1

apiVersion: v1
kind: ConfigMap
data:
  sentinel-conf: |
    port 5000
    # sentinel monitor mymaster 127.0.0.1 6379 2
    sentinel monitor mymaster redis-master 6379 2
    sentinel down-after-milliseconds mymaster 5000
    sentinel failover-timeout mymaster 60000
    sentinel parallel-syncs mymaster 1
metadata:
  name: s-5000
  labels:
    app: sentinel
    role: sentinel
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name:  s-5000
  labels:
    app: sentinel
    role: sentinel
spec:
  replicas: 1
  selector:
    matchLabels:
      app: sentinel
      role: sentinel
  template:
    metadata:
      labels:
        app: sentinel
        role: sentinel
    spec:
      initContainers:
      - name: copy
        image: busybox
        command: ["cp", "/conf/sentinel.conf", "/redis/sentinel.conf"]
        volumeMounts:
        - mountPath: /redis
          name: conf-dst
        - mountPath: /conf
          name: conf-src
      containers:
      - name: s-5002
        image: redis:4.0
        command:
        - "redis-server"
        - "/redis/sentinel.conf"
        - "--sentinel"
        ports:
        - containerPort: 26379
          protocol: "TCP"
        volumeMounts:
        - mountPath: /redis
          name: conf-dst
        - mountPath: /conf
          name: conf-src
      volumes:
      - name: conf-dst
        emptyDir: {}
      - name: conf-src
        configMap:
          name: s-5000
          items:
          - key: sentinel-conf
            path: sentinel.conf
          defaultMode: 0777
---
apiVersion: v1
kind: Service
metadata:
  name: sentinel
  labels:
    app: sentinel
    role: sentinel
spec:
  type: NodePort
  selector:
    app: sentinel
    role: sentinel
  ports:
  - protocol: TCP
    port: 26379
    nodePort: 30079
    targetPort: 26379

slave

apiVersion: v1
kind: Service
metadata:
  name: redis-slave
  labels:
    app: sentinel
    role: slave
spec:
  ports:
  - port: 6380
    targetPort: 6380
    protocol: "TCP"
  clusterIP: None
  selector:
    app: sentinel
    role: slave
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: redis-slave
spec:
  selector:
    matchLabels:
      app: sentinel # has to match .spec.template.metadata.labels
      role: slave
  serviceName: "redis-slave"
  replicas: 1 # by default is 1
  template:
    # name: redis-slave
    metadata:
      labels:
        app: sentinel # has to match .spec.selector.matchLabels
        role: slave
    spec:
      # terminationGracePeriodSeconds: 10
      containers:
      - name: redis-slave
        image: redis:4.0
        args:
        - "--slaveof"
        - "redis-master"
        # - "172.17.0.8"
        - "6379"
        ports:
        - containerPort: 6380
          protocol: "TCP"
        volumeMounts:
        - name: slave-storage
          mountPath: /data
  volumeClaimTemplates:
  - metadata:
      name: slave-storage
    spec:
      accessModes: [ "ReadWriteOnce" ]
      storageClassName: "standard"
      resources:
        requests:
          storage: 1Gi