helm部署redis集群_helm 设置redis 大小

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
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