创建redis.yaml文件

apiVersion: apps/v1
kind: StatefulSet
metadata:
  namespace: yozo
  name: redis
  labels:
    app: redis
spec:
  serviceName: redis-service
  replicas: 6
  selector:
    matchLabels:
      app: redis
      appCluster: redis-cluster
  template:
    metadata:
      labels:
        app: redis
        appCluster: redis-cluster
    spec:  #反亲和性配置
      terminationGracePeriodSeconds: 20
      affinity:
        podAntiAffinity:
          preferredDuringSchedulingIgnoredDuringExecution:
          - weight: 100
            podAffinityTerm:
              labelSelector:
                matchExpressions:
                - key: app
                  operator: In
                  values:
                  - redis
              topologyKey: kubernetes.io/hostname
#      nodeName: k3s-master-common
      securityContext:
        runAsUser: 1099
        runAsGroup: 1099
        fsGroup: 1099
      containers:
      - name: yozo-redis
        image: hub.yozosoft.com:4431/common/x86_64/redis:6.2.13_uuid
        imagePullPolicy: IfNotPresent
        ports:
        - name: redis
          containerPort: 6379
          protocol: "TCP"
        - name: cluster
          containerPort: 16379
          protocol: "TCP"
        command: ["redis-server"]
        args: ["/etc/redis.conf"]
        volumeMounts:
          - name: redis-data
            mountPath: /data/redis/data
            subPath: data/redis
          - name: redis-conf
            mountPath: /etc/redis.conf
            subPath: redis.conf
      volumes:
        - name: redis-conf
          configMap:
            name: redis-config
      restartPolicy: Always
  volumeClaimTemplates:
  - metadata:
      name: redis-data
    spec:
      accessModes: [ "ReadWriteMany" ]
      storageClassName: "sc-yozo-data"
      resources:
        requests:
          storage: 500M

---
apiVersion: v1
kind: Service
metadata:
  name: redis-service
  namespace: yozo
#  labels:
#    app: redis
spec:
  ports:
  - name: redis
    port: 6379
    targetPort: 6379
  - name: redis-cluster
    port: 16379
    targetPort: 16379
  clusterIP: None
  selector:
    app: redis
    appCluster: redis-cluster

---
apiVersion: v1
kind: ConfigMap
metadata:
  namespace: yozo
  name: redis-config
data:
  redis.conf: |
    bind 0.0.0.0
    port 6379
    masterauth 123456
    requirepass 123456
    dbfilename dump.rdb
    dir /data/redis/data
    cluster-enabled yes
    cluster-config-file /data/redis/data/redis-cluster.conf
    cluster-node-timeout 10000
    slave-read-only yes
#    ignore-warnings ARM64-COW-BUG

任意进入其中一个pod

kubectl exec -it redis-0 -nyozo sh

#初始化redis集群,ip为pod的ip

redis-cli --cluster create 10.42.0.62:6379 10.42.0.63:6379 10.42.1.236:6379 10.42.1.237:6379  10.42.2.223:6379 10.42.2.224:6379  --cluster-replicas 1 --cluster-yes -a 123456

#以集群方式连接

redis-cli -c -a 123456

#查看集群连接信息

cluster nodes

32c9cf1d03fa7d145d3345a96dab6ef3b2eb2681 10.42.2.172:6379@16379 slave 1348a85cca84b6bb14d12e36293cb1dac195b72c 0 1720096783000 3 connected
476ffa1939f26caee40cdfb3185d3f1b37b9301f 10.42.2.167:6379@16379 myself,master - 0 1720096786000 1 connected 0-5460
dd58c2f7d9eb140577dad4574bb57e52b35ccef9 10.42.0.36:6379@16379 master - 0 1720096786715 2 connected 5461-10922
5e466ee40fc264e08ffdee33ca8fb38b3b3b3fa6 10.42.1.226:6379@16379 slave dd58c2f7d9eb140577dad4574bb57e52b35ccef9 0 1720096785000 2 connected
5e8f98dd9eb29901ac9f7a42bd3066fb2fdd590c 10.42.0.37:6379@16379 slave 476ffa1939f26caee40cdfb3185d3f1b37b9301f 0 1720096784705 1 connected
1348a85cca84b6bb14d12e36293cb1dac195b72c 10.42.1.225:6379@16379 master - 0 1720096785708 3 connected 10923-16383

#重启一个pod，集群ip会动态识别podip变化，但是重启的那个pod自己本身却不会识别到ip变化

#调整一下启动参数，使其动态获取ip

        command: ["redis-server"]
        args: ["/etc/redis.conf"]
        args:
        - /etc/redis.conf
        - --cluster-announce-ip
        - "$(POD_IP)"
        env:
        - name: POD_IP
          valueFrom:
            fieldRef:
              fieldPath: status.podIP

cluster info

#测试添加一个key值

set 1 v1

#登录其他节点验证

get 1

创建一个service暴漏服务

apiVersion: v1
kind: Service
metadata:
  name: redis-yozo
  namespace: yozo
  labels:
    app: redis
spec:
  ports:
  - name: redis-port
    protocol: "TCP"
    port: 6379
    targetPort: 6379
  - name: redis-cluster
    protocol: "TCP"
    port: 16379
    targetPort: 16379
  type: LoadBalancer
  selector:
    app: redis
    appCluster: redis-cluster