helm部署redis集群

桃扇骨 2023-06-27 06:29 61阅读 0赞

helm部署redis集群
    一：
    配置：
    		nfs存储：100G
    		节点1：node1-iot.com 192.168.0.201
    		节点2：node2-iot.com 192.168.0.202
    		节点3：node3-iot.com 192.168.0.204
    
    二：部署storageclass
    [root@master-iot ~]# kubectl get nodes
    NAME             STATUS   ROLES    AGE   VERSION
    master-iot.com   Ready    master   37h   v1.17.0
    node1-iot.com    Ready    <none>   37h   v1.17.0
    node2-iot.com    Ready    <none>   37h   v1.17.0
    node3-iot.com    Ready    <none>   24m   v1.17.0
    [root@master-iot ~]# helm install stable/nfs-client-provisioner --set nfs.server=192.168.0.203 --set nfs.path=/opt
    注意修改nfs地址和路径
    [root@master-iot ~]# kubectl get pods
    NAME                                                   READY   STATUS    RESTARTS   AGE
    giggly-goose-nfs-client-provisioner-7b94d4dc4f-6dhw4   1/1     Running   0          53m
    
    三：helm部署redis集群
    [root@master-iot redis]# cat values.yaml 
    image:
      repository: redis
      tag: 5.0.5
      pullPolicy: IfNotPresent
    redis:
      resources:
        requests:
          memory: 200Mi
          cpu: 100m
        limits:
          memory: 700Mi
    sentinel:
      resources:
        requests:
          memory: 200Mi
          cpu: 100m
        limits:
          memory: 200Mi
    persistentVolume:
      enabled: true
      storageClass: "nfs-client"
      accessModes:
        - ReadWriteOnce
      size: 10Gi
    [root@master-iot redis]# helm install stable/redis-ha --name=redis-ha --namespace=redis
    [root@master-iot redis]# kubectl get all -n redis
    NAME                    READY   STATUS    RESTARTS   AGE
    pod/redis-ha-server-0   2/2     Running   3          24m
    pod/redis-ha-server-1   2/2     Running   0          24m
    pod/redis-ha-server-2   2/2     Running   0          24m
    
    NAME                          TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)              AGE
    service/redis-ha              ClusterIP   None            <none>        6379/TCP,26379/TCP   24m
    service/redis-ha-announce-0   ClusterIP   10.96.177.155   <none>        6379/TCP,26379/TCP   24m
    service/redis-ha-announce-1   ClusterIP   10.96.255.63    <none>        6379/TCP,26379/TCP   24m
    service/redis-ha-announce-2   ClusterIP   10.96.166.228   <none>        6379/TCP,26379/TCP   24m
    
    NAME                               READY   AGE
    statefulset.apps/redis-ha-server   3/3     24m
    
    四：测试
    [root@master-iot redis]# kubectl get svc -n redis
    NAME                  TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)              AGE
    redis-ha              ClusterIP   None            <none>        6379/TCP,26379/TCP   25m
    redis-ha-announce-0   ClusterIP   10.96.177.155   <none>        6379/TCP,26379/TCP   25m
    redis-ha-announce-1   ClusterIP   10.96.255.63    <none>        6379/TCP,26379/TCP   25m
    redis-ha-announce-2   ClusterIP   10.96.166.228   <none>        6379/TCP,26379/TCP   25m
    [root@master-iot redis]# redis-cli -h 10.96.166.228 -p 6379
    10.96.166.228:6379> INFO replication
    # Replication
    role:master
    connected_slaves:2
    min_slaves_good_slaves:2
    slave0:ip=10.96.255.63,port=6379,state=online,offset=218033,lag=1
    slave1:ip=10.96.177.155,port=6379,state=online,offset=218174,lag=0
    master_replid:ebe58c1995af9ee29119744503a20a805aab28ae
    master_replid2:7ff4e6ea64e6f76766409679e6f6d18867dfa7f2
    master_repl_offset:218174
    second_repl_offset:26098
    repl_backlog_active:1
    repl_backlog_size:1048576
    repl_backlog_first_byte_offset:868
    repl_backlog_histlen:217307
    10.96.166.228:6379> set foo1 bar1
    OK
    10.96.166.228:6379> set foo2 bar2
    OK
    [root@master-iot redis]# redis-cli -h 10.96.255.63  -p 6379
    10.96.255.63:6379> KEYS *
    1) "foo1"
    2) "foo2"
    接下来删除一个pod看是否重建
    [root@master-iot redis]# kubectl get pods -n redis
    NAME                READY   STATUS    RESTARTS   AGE
    redis-ha-server-0   2/2     Running   3          32m
    redis-ha-server-1   2/2     Running   0          32m
    redis-ha-server-2   2/2     Running   0          32m
    [root@master-iot redis]# kubectl delete pod redis-ha-server-0 -n redis
    pod "redis-ha-server-0" deleted
    [root@master-iot redis]# kubectl get pods -n redis
    NAME                READY   STATUS    RESTARTS   AGE
    redis-ha-server-0   2/2     Running   0          18s
    redis-ha-server-1   2/2     Running   0          33m
    redis-ha-server-2   2/2     Running   0          33m
    重建完毕
    [root@master-iot redis]# redis-cli -h 10.96.177.155 -p 6379
    10.96.177.155:6379> KEYS *
    1) "foo1"
    2) "foo2"
    数据保持一致