redis-cluster-test.yaml

apiVersion: v1
kind: ConfigMap
metadata:
  name: redis-config
data:
  redis.conf: |-
    bind 0.0.0.0
    port 6379
    protected-mode no
    tcp-backlog 511
    timeout 0
    tcp-keepalive 300
    daemonize no
    supervised no
    save ""
    maxmemory 5GB
    maxmemory-policy allkeys-lru
    appendonly no
    cluster-enabled yes
    cluster-require-full-coverage no

---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: redis-cluster
  labels:
    app: redis-cluster
spec:
  serviceName: redis-cluster
  replicas: 3
  selector:
    matchLabels:
     app: redis-cluster
  updateStrategy:
    type: OnDelete
  template:
    metadata:
      labels:
        app: redis-cluster
      annotations:
    spec:
      securityContext:
        sysctls:
        - name: net.core.somaxconn
          value: "1024"
      volumes:
        - name: host-sys
          hostPath:
            path: /sys
        - name: config
          configMap:
            name: redis-config
      initContainers:
        - name: sysctl-config
          image: busybox
          volumeMounts:
          - name: host-sys
            mountPath: /host-sys
          command: ["sh", "-c", "echo never >/host-sys/kernel/mm/transparent_hugepage/enabled"]
          terminationMessagePolicy: FallbackToLogsOnError
      containers:
      - name: redis
        image: redis:6.0.4-alpine
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 6379
          name: client
        - containerPort: 16379
          name: gossip
        command: ["sh", "-c", "redis-server /config/redis.conf"]
        terminationMessagePolicy: FallbackToLogsOnError
        volumeMounts:
          - name: config
            mountPath: /config
        readinessProbe:
          exec:
            command:
            - sh
            - -c
            - "redis-cli ping"
          timeoutSeconds: 5
        livenessProbe:
          exec:
            command:
            - sh
            - -c
            - "redis-cli ping"
          periodSeconds: 3