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這篇文章主要介紹“k8s怎么給node添加標(biāo)簽”的相關(guān)知識(shí),小編通過實(shí)際案例向大家展示操作過程,操作方法簡單快捷,實(shí)用性強(qiáng),希望這篇“k8s怎么給node添加標(biāo)簽”文章能幫助大家解決問題。
k8s集群如果由大量節(jié)點(diǎn)組成,可將節(jié)點(diǎn)打上對(duì)應(yīng)的標(biāo)簽,然后通過標(biāo)簽進(jìn)行篩選及查看,更好的進(jìn)行資源對(duì)象的相關(guān)選擇與匹配
[root@master01 ~]# kubectl get node --show-labels NAME STATUS ROLES AGE VERSION LABELS master01 Ready control-plane,master 3d10h v1.21.0 beta.kubernetes.io/arch=amd64,beta.kubernetes.io/os=linux,kubernetes.io/arch=amd64,kubernetes.io/hostname=master01,kubernetes.io/os=linux,node-role.kubernetes.io/control-plane=,node-role.kubernetes.io/master=,node.kubernetes.io/exclude-from-external-load-balancers= worker01 Ready <none> 3d9h v1.21.0 beta.kubernetes.io/arch=amd64,beta.kubernetes.io/os=linux,kubernetes.io/arch=amd64,kubernetes.io/hostname=worker01,kubernetes.io/os=linux,region=huanan worker02 Ready <none> 3d9h v1.21.0 beta.kubernetes.io/arch=amd64,beta.kubernetes.io/os=linux,kubernetes.io/arch=amd64,kubernetes.io/hostname=worker02,kubernetes.io/os=linux
[root@master01 ~]# kubectl label node worker02 region=guanzhou
node/worker02 labeled
[root@master01 ~]# kubectl get nodes -L region
NAME STATUS ROLES AGE VERSION REGION
master01 Ready control-plane,master 3d10h v1.21.0
worker01 Ready <none> 3d9h v1.21.0 huanan
worker02 Ready <none> 3d9h v1.21.0 guanzhou
也可以加其它的多維度標(biāo)簽,用于不同的需要區(qū)分的場景
如把worker01
標(biāo)簽為華南區(qū),A機(jī)房,測試環(huán)境,游戲業(yè)務(wù)
[root@master01 ~]# kubectl label node worker01 zone=A env=test bussiness=game
node/worker01 labeled
[root@master01 ~]# kubectl get node -L zone,env
NAME STATUS ROLES AGE VERSION ZONE ENV
master01 Ready control-plane,master 3d10h v1.21.0
worker01 Ready <none> 3d9h v1.21.0 A test
worker02 Ready <none> 3d9h v1.21.0
[root@master01 ~]# kubectl get nodes -l env=test --show-labels
NAME STATUS ROLES AGE VERSION LABELS
worker01 Ready <none> 3d9h v1.21.0 beta.kubernetes.io/arch=amd64,beta.kubernetes.io/os=linux,bussiness=game,env=test,kubernetes.io/arch=amd64,kubernetes.io/hostname=worker01,kubernetes.io/os=linux,region=huanan,zone=A
[root@master01 ~]# kubectl label node worker01 env=prod --overwrite=true
node/worker01 labeled
[root@master01 ~]# kubectl label node worker01 env-
node/worker01 labeled
[root@master01 ~]# kubectl get node -L env
NAME STATUS ROLES AGE VERSION ENV
master01 Ready control-plane,master 3d10h v1.21.0
worker01 Ready <none> 3d9h v1.21.0
worker02 Ready <none> 3d9h v1.21.0
[root@master01 ~]# kubectl label node worker01 env=test1
node/worker01 labeled
[root@master01 ~]# kubectl label node worker02 env=test2
node/worker02 labeled
[root@master01 ~]# kubectl get node -l 'env in(test1,test2)'
NAME STATUS ROLES AGE VERSION
worker01 Ready <none> 3d9h v1.21.0
worker02 Ready <none> 3d9h v1.21.0
[root@master01 ~]# kubectl get node -l 'env in(test1,test2)' --show-labels
NAME STATUS ROLES AGE VERSION LABELS
worker01 Ready <none> 3d9h v1.21.0 beta.kubernetes.io/arch=amd64,beta.kubernetes.io/os=linux,bussiness=game,env=test1,kubernetes.io/arch=amd64,kubernetes.io/hostname=worker01,kubernetes.io/os=linux,region=huanan,zone=A
worker02 Ready <none> 3d9h v1.21.0 beta.kubernetes.io/arch=amd64,beta.kubernetes.io/os=linux,env=test2,kubernetes.io/arch=amd64,kubernetes.io/hostname=worker02,kubernetes.io/os=linux,region=guanzhou
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