Kubernetes专题系列-资源指标监控篇

[root@node1 ~]#wget -P k8s-monitor wget -c https://github.com/kubernetes-sigs/metrics-server/archive/v0.3.7.tar.gz && cd k8s-monitor && tar zxf v0.3.7.tar.gz


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只修改配置文件metrics-server-deployment.yaml中的image把“image: k8s.gcr.io/metrics-server/metrics-server:v0.3.7”设置为“image: registry.cn-beijing.aliyuncs.com/duqiu/metrics-server:v0.3.7”
然后在containers的args启动参数处添加以下内容，跟“- --secure-port=4443”对齐即可
- metrics-server
- --metric-resolution=30s                                             
- --kubelet-insecure-tls                                              
- --kubelet-preferred-address-types=InternalIP,Hostname,InternalDNS,Ex
- --kubelet-insecure-tls
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[root@192-168-0-114 ~]# cd metrics-server-0.3.7/deploy/1.8+
[root@192-168-0-114 1.8+]# kubectl  apply -f .
clusterrole.rbac.authorization.k8s.io/system:aggregated-metrics-reader changed
clusterrolebinding.rbac.authorization.k8s.io/metrics-server:system:auth-delegator changed
rolebinding.rbac.authorization.k8s.io/metrics-server-auth-reader changed
apiservice.apiregistration.k8s.io/v1beta1.metrics.k8s.io changed
serviceaccount/metrics-server changed
deployment.apps/metrics-server changed
service/metrics-server changed
clusterrole.rbac.authorization.k8s.io/system:metrics-server changed
clusterrolebinding.rbac.authorization.k8s.io/system:metrics-server changed
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[root@192-168-0-114 ~]# kubectl  top node
NAME    CPU(cores)   CPU%   MEMORY(bytes)   MEMORY%   
node1   536m         14%    2247Mi          70%       
node2   441m         11%    2162Mi          67%       
node3   380m         9%     1370Mi          39%


[root@192-168-0-114 ~]# kubectl  top po -n kube-system
NAME                                          CPU(cores)   MEMORY(bytes)   
calico-kube-controllers-7fbcd4c569-9bfwx      7m           20Mi            
calico-node-2cmrq                             69m          68Mi            
calico-node-fh6wx                             78m          71Mi            
calico-node-mlvth                             73m          61Mi            
coredns-66655b745d-ldr4r                      6m           13Mi            
coredns-66655b745d-t9z98                      11m          13Mi            
dns-autoscaler-647cfd7f5b-sfg4w               1m           10Mi            
kube-apiserver-node1                          93m          284Mi           
kube-apiserver-node2                          75m          295Mi           
kube-controller-manager-node1                 46m          58Mi            
kube-controller-manager-node2                 5m           17Mi            
kube-proxy-98q69                              7m           19Mi            
kube-proxy-bb97m                              13m          19Mi            
kube-proxy-pgqld                              1m           17Mi            
kube-scheduler-node1                          11m          22Mi            
kube-scheduler-node2                          7m           14Mi            
kubernetes-dashboard-5c8754b9f6-mv8km         1m           27Mi            
kubernetes-metrics-scraper-68464b88b5-5hrc5   1m           15Mi            
metrics-server-77c94d4964-ljpz4               4m           18Mi            
nginx-proxy-node3                             1m           18Mi            
nodelocaldns-75nkt                            3m           16Mi            
nodelocaldns-8gbv8                            3m           14Mi            
nodelocaldns-bpp2d                            3m           12Mi
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---
# ------------------- Dashboard Service ------------------- #


kind: Service
apiVersion: v1
metadata:
  labels:
    k8s-app: kubernetes-dashboard
  name: kubernetes-dashboard
  namespace: kube-system
spec:
  type: NodePort
  ports:
    - port: 443
      targetPort: 8443
      nodePort: 32567
  selector:
    k8s-app: kubernetes-dashboard
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###By duqiu
---


apiVersion: v1
kind: ServiceAccount
metadata:
  labels:
    k8s-app: dashboard-admin
  name: dashboard-admin
  namespace: kubernetes-dashboard


---


apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: dashboard-cluster-admin
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: cluster-admin
subjects:
  - kind: ServiceAccount
    name: dashboard-admin
    namespace: kubernetes-dashboard
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[root@node1 kubernetes]#kubectl create ns kubernetes-dashboard
[root@node1 kubernetes]# kubectl apply -f dashboard.yml
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[root@node1 kubernetes]# kubectl  get po -n kube-system|grep dash
kubernetes-dashboard-5c8754b9f6-mv8km         1/1     Running   0          17h
[root@node1 kubernetes]# kubectl  get sa -n kubernetes-dashboard
NAME              SECRETS   AGE
dashboard-admin   1         17h
default           1         17h
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[root@node1 kubernetes]# kubectl  describe secret dashboard-admin-token-29htx -n kubernetes-dashboard
Name:         dashboard-admin-token-29htx
Namespace:    kubernetes-dashboard
Labels:       <none>
Annotations:  kubernetes.io/service-account.name: dashboard-admin
              kubernetes.io/service-account.uid: 0dasdfad-6f46-4a82-adf39-adsf34fae81cb


Type:  kubernetes.io/service-account-token


Data
====
ca.crt:     1025 bytes
namespace:  20 bytes
token:      asdfGciOiJSUzIasdfCI6IkZUdkJINWpmaadsfasdfA1NmhJanp6NXhWYjd1TEJ2RU9CY1kifQ.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.VzWAWb43pyfmcTKTIzlAr4szf2Myt5O1LnPTVoXtdVAih9DJcEcfgwZGrPclFaKdpw_uUezgG98_u9tkUMBGf3e8c_QrP80QOt4r3r5U_O8FJ4osiN700CrfbJRCWeiSB7D0jHnakb9qI_5qwApkw_Ky7lVo9WKwxdP_gnoO0rQV9oxQpcN-d10tTVBIS1nUcOsQzA-5MIP32r0p7iZHCuv2_G9UuKaPvPvdbYDTRokr5aTpSgx_-hFbkFuFs_MBQwkrC6CP3r819hyU3CInunaI0_J_WYNskZ-pmT5Jg3db-n34jKVKf4RlALZIvkQO6RfFG0YrH1V2_-ComYsAUw
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