安装命令行工具

    从 cfssl 网站 下载 和 cfssljson 并安装：

    或者使用 Homebrew 来安装

    1. brew install cfssl

    Linux

    1. wget -q --show-progress --https-only --timestamping \
    2.   https://pkg.cfssl.org/R1.2/cfssl_linux-amd64 \
    3.   https://pkg.cfssl.org/R1.2/cfssljson_linux-amd64
    4. chmod +x cfssl_linux-amd64 cfssljson_linux-amd64
    6. sudo mv cfssljson_linux-amd64 /usr/local/bin/cfssljson
    1. Revision: dev
    2. Runtime: go1.6

    安装 kubectl

    OS X

    1. curl -o kubectl https://storage.googleapis.com/kubernetes-release/release/v1.12.0/bin/darwin/amd64/kubectl
    2. chmod +x kubectl
    3. sudo mv kubectl /usr/local/bin/

    验证

    验证 kubectl 的安装版本为 1.12.0 或是更高

    1. kubectl version --client
    1. Client Version: version.Info{Major:"1", Minor:"12", GitVersion:"v1.12.0", GitCommit:"0ed33881dc4355495f623c6f22e7dd0b7632b7c0", GitTreeState:"clean", BuildDate:"2018-09-27T17:05:32Z", GoVersion:"go1.10.4", Compiler:"gc", Platform:"linux/amd64"}