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  • Kubernetes 切换context和namespace


    title: kubernetes 切换context 或 namespace
    author: susu

    # kubernetes查看当前context
    [root@VM_0_2_linux ~]# kubectl config get-contexts
    CURRENT   NAME                            CLUSTER        AUTHINFO           NAMESPACE
    *         kubernetes-admin@cls-lp2k78hj   cls-lp2k78hj   kubernetes-admin   kube-system
    [root@VM_0_2_linux ~]# kubectl config view
    apiVersion: v1
    clusters:
    - cluster:
        certificate-authority-data: DATA+OMITTED
        server: https://kube-shf.cls-lp2k78hj.io:6443
    ...
    output omitted
    ...
    
    # 使用定义的名称空间创建新的上下文
    kubectl config set-context gce-dev --user=cluster-admin --namespace=dev
    kubectl config use-context gce-dev
    
    # 仅切换名称空间
    kubectl config set-context --current --namespace=<namespace>
    
    $ alias kubens='kubectl config set-context --current --namespace '
    $ alias kubectx='kubectl config use-context '
    
    $ kubens kube-system    //Switch to a different namespace
    $ kubectx docker        //Switch to separate context
    
    # 利用第三方小工具(二进制命令)来进行切换context或namespace
    [root@VM_0_2_linux ~]# git clone https://github.com/ahmetb/kubectx
    [root@VM_0_2_linux ~]# which kubectl
    /usr/bin/kubectl
    [root@VM_0_2_linux ~]# cp kubectx/kube* /usr/bin/
    [root@VM_0_2_linux ~]# kubectx
    kubernetes-admin@cls-lp2k78hj
    [root@VM_0_2_linux ~]# kubens
    default
    kube-node-lease
    kube-public
    kube-system
    test
    [root@VM_0_2_linux ~]# kubens kube-system
    Context "kubernetes-admin@cls-lp2k78hj" modified.
    Active namespace is "kube-system".
    [root@VM_0_2_linux ~]#
    
    WARNING: No any other purpose,keeping reminded! So sorry to offended,if necessary, contact me and I do change what I had done to protect your privileges!
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  • 原文地址:https://www.cnblogs.com/MimiSnowing/p/14861679.html
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