|NO.Z.00257|——————————|CloudNative|——|KuberNetes&中介軟體容器化及helm.V04|------------------------------------------|中介軟體.v04|redis.v5.0.4|環境測試|
阿新 • • 發佈:2022-03-31
[CloudNative:KuberNetes&中介軟體容器化及helm.V04] [Applications.KuberNetes] [|容器化中介軟體基本說明|如何部署一個容器到k8s中|k8s下同步docker映象|部署redis-operator|redis.v5.0.4|]
一、redis實驗操作
### --- 檢視建立的redis.pod和service ~~~ 準備引數 [root@k8s-master01 redis]# kubectl get po -n ratel-test1 -owide NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES redis-single-node-df78c5db8-jlbcn 1/1 Running 0 20m 172.25.92.115 k8s-master02 <none> <none>
二、通過service名稱連線redis### --- 用來進入redis中操作redis-cli ~~~ redis-cli可以通過pod的IP地址連線,也可以通過service的IP地址連線 [root@k8s-master01 redis]# kubectl get svc -n ratel-test1 -owide NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE SELECTOR redis-single-node ClusterIP 10.107.230.191 <none> 6379/TCP 45m app=redis-single-node
### --- 進入到redis容器中:通過service或Pod的IP地址去連線redis ~~~ 以上這種方式不會去直接連線,因為pod和service的IP地址會發生變化的, ~~~ 一般我們都會通過service的名稱去連線 [root@k8s-master01 redis]# kubectl exec -ti redis-single-node-df78c5db8-jlbcn -n ratel-test1 -- sh /data # redis-cli -h 172.25.92.115 // 通過pod的IP地址連線 172.25.92.115:6379> /data # redis-cli -h 10.107.230.191 // 通過service的IP地址連線 10.107.230.191:6379> set a b // 實驗操作 OK 10.107.230.191:6379> get a "b"
### --- 進入到redis容器中:通過service名稱去連線redis:同一個namespace
~~~ 因為我們這個redis的pod和對應的service在同一個namespace下,
~~~ 所以直接指定service的名稱即可
[root@k8s-master01 redis]# kubectl exec -ti redis-single-node-df78c5db8-jlbcn -n ratel-test1 -- sh
/data # redis-cli -h redis-single-node
redis-single-node:6379> keys *
1) "a"
redis-single-node:6379> get a
"b"
### --- 進入redis容器中:通過service名稱去連線redis:
~~~ 若是pod和應用pod不在同一個namespace下
[root@k8s-master01 redis]# kubectl exec -ti redis-single-node-df78c5db8-jlbcn -n ratel-test1 -- sh
/data # redis-cli -h redis-single-node.ratel-test1
redis-single-node.ratel-test1:6379> keys *
1) "a"
redis-single-node.ratel-test1:6379> get a
"b"
三、刪除實驗操作記錄
### --- 刪除redis單節點pod
### --- 刪除service和ep和configmap
[root@k8s-master01 redis]# kubectl delete -f redis.yaml -n ratel-test1
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Walter Savage Landor:strove with none,for none was worth my strife.Nature I loved and, next to Nature, Art:I warm'd both hands before the fire of life.It sinks, and I am ready to depart ——W.S.Landor
來自為知筆記(Wiz)