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wsgzao
V2EX  ›  Kubernetes

使用 krew 安装 node-shell 轻松修改 k8s 宿主机 root 密码

  •  
  •   wsgzao · 2023-03-30 14:01:28 +08:00 · 1332 次点击
    这是一个创建于 581 天前的主题,其中的信息可能已经有所发展或是发生改变。

    前言

    公有云场景越来越多公司选择基于托管 K8S 部署应用,大部分人都会直接基于 kubeconfig 配置管理 K8S 集群,但时间一长偶尔也会遇到 K8S Node 忘记 root 密码的尴尬,这回跟着同事学习用 krew 安装 node-shell 轻松修改 k8s 宿主机 root 密码。

    更新历史

    2023 年 03 月 07 日 - 初稿

    阅读原文 - https://wsgzao.github.io/post/krew/


    安装 krew

    https://krew.sigs.k8s.io/docs/user-guide/quickstart/

    https://krew.sigs.k8s.io/docs/user-guide/setup/install/

    # install krew
    brew install krew
    
    # run krew command
    kubectl krew
    krew is the kubectl plugin manager.
    You can invoke krew through kubectl: "kubectl krew [command]..."
    
    Usage:
      kubectl krew [command]
    
    Available Commands:
      completion  generate the autocompletion script for the specified shell
      help        Help about any command
      index       Manage custom plugin indexes
      info        Show information about an available plugin
      install     Install kubectl plugins
      list        List installed kubectl plugins
      search      Discover kubectl plugins
      uninstall   Uninstall plugins
      update      Update the local copy of the plugin index
      upgrade     Upgrade installed plugins to newer versions
      version     Show krew version and diagnostics
    
    Flags:
      -h, --help      help for krew
      -v, --v Level   number for the log level verbosity
    
    Use "kubectl krew [command] --help" for more information about a command.
    
    

    安装 node-shell

    https://github.com/kvaps/kubectl-node-shell

    https://github.com/sunny0826/kubecm

    https://github.com/sunny0826/kubectl-pod-lens

    https://github.com/ohmyzsh/ohmyzsh/tree/master/plugins/kubectl

     ~  kubectl krew update
    Adding "default" plugin index from https://github.com/kubernetes-sigs/krew-index.git.
    Updated the local copy of plugin index.
    
     ~  kubectl krew index list
    INDEX    URL
    default  https://github.com/kubernetes-sigs/krew-index.git
    
    kubectl krew install node-shell
    
    WARNING: You have added a new index from "https://github.com/kvaps/krew-index"
    The plugins in this index are not audited for security by the Krew maintainers.
    Install them at your own risk.
    WARNING: To be able to run kubectl plugins, you need to add
    the following to your ~/.zshrc:
    
        export PATH="${PATH}:${HOME}/.krew/bin"
    
    and restart your shell.
    
    Updated the local copy of plugin index "kvaps".
    Installing plugin: node-shell
    Installed plugin: node-shell
    \
     | Use this plugin:
     | 	kubectl node-shell
     | Documentation:
     | 	https://github.com/kvaps/kubectl-node-shell
     | Caveats:
     | \
     |  | You need to be allowed to start privileged pods in the cluster
     | /
    /
    
    
    

    修改 Node root 密码

    https://kubernetes.io/docs/tasks/extend-kubernetes/socks5-proxy-access-api/

    kubecm add
    add proxy-url
    kgno
    
    NAME                     STATUS   ROLES    AGE    VERSION
    xxxxxxxxxxxx             Ready    <none>   20d    v1.20.15-vke.7
    
    kubectl node-shell xxx
    passwd
    
    
    
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