|NO.Z.00096|——————————|^^ 升級 ^^|——|KuberNetes&二進位制升級.V07|-----------------------|kubernetes元件|metrics-server.v0.4.1——>v0.5.0|
阿新 • • 發佈:2022-03-29
[CloudNative:KuberNetes&二進位制升級.V07] [Applications.KuberNetes] [|DevOps|kubernetes|二進位制升級|kubernetes.v1.17.0——>v1.19.5|元件|metrics-server.v0.4.1——>v0.5.0|]
一、kubernetes.metrics-server
二、升級metrics-server服務### --- metrics-server官方GitHub地址 ### --- metrics-server資源下載地址 ~~~ https://github.com/kubernetes-sigs/metrics-server
### --- 下載metrics-server.v0.5.0版本包
~~~ 獲取metrics-server版本包
[root@k8s-master01 metrics-server]# pwd
/root/upgrade/metrics-server
[root@k8s-master01 metrics-server]# wget -c https://github.com/kubernetes-sigs/metrics-server/releases/download/v0.5.0/components.yaml
### --- 備份metrics-server配置資源 ~~~ # 檢視metrics-server配置資源 [root@k8s-master01 ~]# kubectl get secret metrics-server-token-qrtmc -n kube-system NAME TYPE DATA AGE metrics-server-token-qrtmc kubernetes.io/service-account-token 3 55d [root@k8s-master01 ~]# kubectl get deployment metrics-server -n kube-system -owide NAME READY UP-TO-DATE AVAILABLE AGE CONTAINERS IMAGES SELECTOR metrics-server 1/1 1 1 55d metrics-server registry.cn-beijing.aliyuncs.com/dotbalo/metrics-server:v0.4.1 k8s-app=metrics-server [root@k8s-master01 ~]# kubectl get service metrics-server -n kube-system -owide NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE SELECTOR metrics-server ClusterIP 10.107.213.132 <none> 443/TCP 55d k8s-app=metrics-server [root@k8s-master01 ~]# kubectl get endpoints -n kube-system -owide NAME ENDPOINTS AGEkube-controller-manager <none> 2d3h metrics-server 172.17.125.15:4443 55d
~~~ # 備份metrics-server配置資源 [root@k8s-master01 metrics.bak]# pwd /root/upgrade/metrics-server/metrics.bak [root@k8s-master01 ~]# kubectl get secret metrics-server-token-qrtmc -n kube-system -oyaml > upgrade/metrics-server/metrics.bak/metrics-secret.yaml [root@k8s-master01 ~]# kubectl get deployment metrics-server -n kube-system -oyaml > upgrade/metrics-server/metrics.bak/metrics-deployment.yaml [root@k8s-master01 ~]# kubectl get service metrics-server -n kube-system -oyaml > upgrade/metrics-server/metrics.bak/metrics-service.yaml [root@k8s-master01 ~]# kubectl get endpoints metrics-server -n kube-system -oyaml > upgrade/metrics-server/metrics.bak/metrics-endpoints.yaml
~~~ # 檢視檢視metrics-server的ClusterRole 和clusterrolebinding
[root@k8s-master01 ~]# kubectl get clusterrole system:metrics-server
NAME CREATED AT
system:metrics-server 2021-05-10T12:38:57Z
[root@k8s-master01 ~]# kubectl get clusterrolebinding system:metrics-server
NAME ROLE AGE
system:metrics-server ClusterRole/system:metrics-server 55d
~~~ # 備份metrics-server的ClusterRole和ClusterRoleBinding
[root@k8s-master01 ~]# kubectl get clusterrole system:metrics-server -oyaml > upgrade/metrics-server/metrics.bak/metrics-cr.yaml
[root@k8s-master01 ~]# kubectl get clusterrolebinding system:metrics-server -oyaml > upgrade/metrics-server/metrics.bak/metrics-crb.yaml
三、升級並驗證
### --- 升級metrics-server版本:metrics-server.v0.4.1——>v0.5.0
~~~ # 檢視metrics-server的版本
[root@k8s-master01 ~]# kubectl get deployment metrics-server -n kube-system -oyaml | grep image
image: registry.cn-beijing.aliyuncs.com/dotbalo/metrics-server:v0.4.1
~~~ # 升級metrics-server
[root@k8s-master01 metrics-server]# pwd
/root/upgrade/metrics-server
[root@k8s-master01 metrics-server]# kubectl apply -f components.yaml
[root@k8s-master01 ~]# kubectl get po -n kube-system -owide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
coredns-746fcb4bc5-p9r7r 0/1 ContainerCreating 0 15s <none> k8s-master02 <none> <none>
~~~ # 檢視metrics-server更新後版本
[root@k8s-master01 ~]# kubectl get deployment metrics-server -n kube-system -oyaml | grep image
image: registry.cn-beijing.aliyuncs.com/dotbalo/metrics-server:v0.5.0
### --- 驗證metrics-server是否正常獲取資料
[root@k8s-master01 ~]# kubectl get hpa
NAME REFERENCE TARGETS MINPODS MAXPODS REPLICAS AGE
demo-nginx Deployment/demo-nginx <unknown>/20% 2 5 2 54d
[root@k8s-master01 ~]# kubectl top node
NAME CPU(cores) CPU% MEMORY(bytes) MEMORY%
k8s-master01 404m 20% 1205Mi 65%
k8s-master02 343m 17% 1214Mi 66%
k8s-master03 387m 19% 1245Mi 67%
k8s-node01 190m 19% 973Mi 52%
k8s-node02 141m 14% 624Mi 33%
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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
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