apiVersion: v1
kind: ConfigMap
metadata:
  name: redis-cluster-config
  namespace: mid
  labels:
    app: redis-cluster
data:
  redis-cluster.conf: |
    bind 0.0.0.0
    protected-mode yes
    #redis端口,为了安全设置为6379端口
    port 6379
    tcp-backlog 511
    timeout 0
    tcp-keepalive 300
    #redis是否以后台模式运行,必须设置no
    daemonize no
    supervised no
    #redis的pid文件,放到/data目录下
    pidfile /data/redis.pid
    loglevel notice
    #redis日志文件,放到/data目录下
    logfile /data/redis_log
    databases 16
    always-show-logo yes
    save 900 1
    save 300 10
    save 60 10000
    stop-writes-on-bgsave-error yes
    rdbcompression yes
    rdbchecksum yes
    #这个文件会放在dir定义的/data目录
    dbfilename dump.rdb	
    #数据目录
    dir /data
    #redis集群各节点相互认证的密码,必须配置和下面的requirepass一致
    masterauth K4l2kC8Y0Nsep7eS
    replica-serve-stale-data yes
    replica-read-only yes
    repl-diskless-sync no
    repl-diskless-sync-delay 5
    repl-disable-tcp-nodelay no
    replica-priority 100
    #redis的密码
    requirepass K4l2kC8Y0Nsep7eS
    lazyfree-lazy-eviction no
    lazyfree-lazy-expire no
    lazyfree-lazy-server-del no
    replica-lazy-flush no
    appendonly no
    #这个文件会放在dir定义的/data目录
    appendfilename "appendonly.aof"
    appendfsync everysec
    no-appendfsync-on-rewrite no
    auto-aof-rewrite-percentage 100
    auto-aof-rewrite-min-size 64mb
    aof-load-truncated yes
    aof-use-rdb-preamble yes
    lua-time-limit 5000
    #是否启用集群模式，必须去掉注释设为yes
    cluster-enabled yes
    #这个文件会放在dir定义的/data目录
    cluster-config-file nodes.conf
    cluster-node-timeout 15000
    slowlog-log-slower-than 10000
    slowlog-max-len 128
    latency-monitor-threshold 0
    notify-keyspace-events ""
    hash-max-ziplist-entries 512
    hash-max-ziplist-value 64
    list-max-ziplist-size -2
    list-compress-depth 0
    set-max-intset-entries 512
    zset-max-ziplist-entries 128
    zset-max-ziplist-value 64
    hll-sparse-max-bytes 3000
    stream-node-max-bytes 4096
    stream-node-max-entries 100
    activerehashing yes
    client-output-buffer-limit normal 0 0 0
    client-output-buffer-limit replica 256mb 64mb 60
    client-output-buffer-limit pubsub 32mb 8mb 60
    hz 10
    dynamic-hz yes
    aof-rewrite-incremental-fsync yes
    rdb-save-incremental-fsync yes
--- 
apiVersion: v1
kind: Service
metadata:
  name: redis-cluster-headless
  namespace: mid
  labels:
    app: redis-cluster
spec:
  selector:
    app: redis-cluster
  clusterIP: None
  ports:
  - name: redis-cluster
    port: 6379
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  labels:
    app: redis-cluster
  name: redis-cluster
  namespace: mid
spec:
  selector:
    matchLabels:
      app: redis-cluster
  #副本数为6个,redis集群模式最少要为6个节点,构成3主3从
  replicas: 6
  #指定使用service为上面我们创建的无头service的名称
  serviceName: redis-cluster-headless
  template:                     
    metadata:
      labels:
        app: redis-cluster
    spec:
#定义pod反亲和性,目的让6个pod不在同一个主机上,实现均衡分布,这里我的node节点不够,所以不定义反亲和性
#     affinity:
#       podAntiAffinity:                         
#         preferredDuringSchedulingIgnoredDuringExecution:
#         - weight: 100
#           podAffinityTerm:
#             labelSelector:
#              matchExpressions:
#               - key: app
#                 operator: In
#                 values:
#                 - redis-cluster
#             topologyKey: kubernetes.io/hostname
      containers:
      - name: redis-cluster
        #image: redis:latest
        image: harbor.uenpay.com/base/redis:6.2.5
        imagePullPolicy: IfNotPresent
        command:
          - "redis-server"
        args:
          - "/etc/redis/redis-cluster.conf"
          - "--cluster-announce-ip"
#这个参数是为了解决pod重启ip变了之后,redis集群状态无法自动同步问题
          - "$(POD_IP)"
        env:
        - name: POD_IP
          valueFrom:
            fieldRef:
              fieldPath: status.podIP   
        ports:
        - name: tcp
          containerPort: 6379
        volumeMounts:
        - name: config
          mountPath: /etc/redis
        - name: data
          mountPath: /data
        - name: localtime
          mountPath: /etc/localtime
          readOnly: true
      restartPolicy: Always
      volumes:
      - name: config
        configMap:
          name: redis-cluster-config
          items:
            - key: redis-cluster.conf
              path: redis-cluster.conf
      - name: localtime
        hostPath:
          path: /usr/share/zoneinfo/Asia/Shanghai
          type: File
  volumeClaimTemplates:
  - metadata: 
      name: data
    spec:
      accessModes:
      - ReadWriteOnce
#      下面一行不写会用默认存储类
#      storageClassName: nfs-storage
      resources:
        requests:
          storage: 10Gi