k8s固定pod在某一节点, node添加Label

基本信息

服务器: kubernetes-master-1, kubernetes-node-1, kubernetes-node-2

容器: mysql-master

配置文件: MySQL.yml

###### 省略 ###### spec: replicas: 1 selector: matchLabels: name: mysql-master template: metadata: labels: name: mysql-master spec: containers: - name: mysql-master image: XXXX imagePullPolicy: IfNotPresent ###### 省略 ######

现在希望mysql-master能共固定在kubernetes-node-1上;

 

master-1服务器上操作

查看现有node及label:  kubectl get node --show-labels

添加label: kubectl label nodes <node-name> <label-key>=<label-value> 

kubectl label nodes kubernetes-node-1 name=node-1

删除label: kubectl label nodes <node-name> <label-key>

修改Label的值: kubectl label nodes <node-name> <label-key>=<label-value> --overwrite  

添加之后查看现有node及label: 

 

修改配置文件: vim MySQL.yml

###### 省略 ###### spec: replicas: 1 selector: matchLabels: name: mysql-master template: metadata: labels: name: mysql-master spec: nodeSelector: name: "node-1" # <label-key>: <label-value> containers: - name: mysql-master image: XXXX imagePullPolicy: IfNotPresent ###### 省略 ######

重新应用一下: kubectl apply -f MySQL.yml

完成