本文共 4522 字，大约阅读时间需要 15 分钟。

在前一篇文章中介绍了Operator Framework，提到了Operator SDK是用来搭建脚手架的重要工具，这篇文章就Operator SDK进行继续展开。

Operator Framework

关于Operator和Operator Framework的介绍，可参看：

基本信息

Operator SDK的基本信息如下所示：

三种开发方式

通过使用SDK-CLI，可以使用如下三种方式进行CRD相关的扩展开发，

• go
• Ansible
• Helm
  三者相关所能实现的能力如下所示，使用Helm一般只能实现安装和无缝升级等功能。
  

安装方式

方式1: 使用brew安装（MacOS）

在MacOS下，可以直接使用brew进行安装

执行命令：brew install operator-sdk

方式2: 二进制文件（github）

使用github的release下提供的支持各种OS的相应二进制文件，然后进行权限设定即可。

• 下载文件

# Set the release version variable$ RELEASE_VERSION=v1.2.0# Linux$ curl -LO https://github.com/operator-framework/operator-sdk/releases/download/${RELEASE_VERSION}/operator-sdk-${RELEASE_VERSION}-x86_64-linux-gnu$ curl -LO https://github.com/operator-framework/operator-sdk/releases/download/${RELEASE_VERSION}/ansible-operator-${RELEASE_VERSION}-x86_64-linux-gnu$ curl -LO https://github.com/operator-framework/operator-sdk/releases/download/${RELEASE_VERSION}/helm-operator-${RELEASE_VERSION}-x86_64-linux-gnu# macOS$ curl -LO https://github.com/operator-framework/operator-sdk/releases/download/${RELEASE_VERSION}/operator-sdk-${RELEASE_VERSION}-x86_64-apple-darwin$ curl -LO https://github.com/operator-framework/operator-sdk/releases/download/${RELEASE_VERSION}/ansible-operator-${RELEASE_VERSION}-x86_64-apple-darwin$ curl -LO https://github.com/operator-framework/operator-sdk/releases/download/${RELEASE_VERSION}/helm-operator-${RELEASE_VERSION}-x86_64-apple-darwin

• 安装设定

# Linux$ chmod +x operator-sdk-${RELEASE_VERSION}-x86_64-linux-gnu && sudo mkdir -p /usr/local/bin/ && sudo cp operator-sdk-${RELEASE_VERSION}-x86_64-linux-gnu /usr/local/bin/operator-sdk && rm operator-sdk-${RELEASE_VERSION}-x86_64-linux-gnu$ chmod +x ansible-operator-${RELEASE_VERSION}-x86_64-linux-gnu && sudo mkdir -p /usr/local/bin/ && sudo cp ansible-operator-${RELEASE_VERSION}-x86_64-linux-gnu /usr/local/bin/ansible-operator && rm ansible-operator-${RELEASE_VERSION}-x86_64-linux-gnu$ chmod +x helm-operator-${RELEASE_VERSION}-x86_64-linux-gnu && sudo mkdir -p /usr/local/bin/ && sudo cp helm-operator-${RELEASE_VERSION}-x86_64-linux-gnu /usr/local/bin/helm-operator && rm helm-operator-${RELEASE_VERSION}-x86_64-linux-gnu# macOS$ chmod +x operator-sdk-${RELEASE_VERSION}-x86_64-apple-darwin && sudo mkdir -p /usr/local/bin/ && sudo cp operator-sdk-${RELEASE_VERSION}-x86_64-apple-darwin /usr/local/bin/operator-sdk && rm operator-sdk-${RELEASE_VERSION}-x86_64-apple-darwin$ chmod +x ansible-operator-${RELEASE_VERSION}-x86_64-apple-darwin && sudo mkdir -p /usr/local/bin/ && sudo cp ansible-operator-${RELEASE_VERSION}-x86_64-apple-darwin /usr/local/bin/ansible-operator && rm ansible-operator-${RELEASE_VERSION}-x86_64-apple-darwin$ chmod +x helm-operator-${RELEASE_VERSION}-x86_64-apple-darwin && sudo mkdir -p /usr/local/bin/ && sudo cp helm-operator-${RELEASE_VERSION}-x86_64-apple-darwin /usr/local/bin/helm-operator && rm helm-operator-${RELEASE_VERSION}-x86_64-apple-darwin

方式3: 源码安装

$ git clone https://github.com/operator-framework/operator-sdk$ cd operator-sdk$ git checkout master$ make install

安装示例

这里以方式2为例，在MacOS上安装operator-sdk为例，执行如下命令和日志如下所示

liumiaocn:~ liumiao$ RELEASE_VERSION=v1.2.0liumiaocn:~ liumiao$ curl -LO https://github.com/operator-framework/operator-sdk/releases/download/${RELEASE_VERSION}/operator-sdk-${RELEASE_VERSION}-x86_64-apple-darwin  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current                                 Dload  Upload   Total   Spent    Left  Speed100   665  100   665    0     0    360      0  0:00:01  0:00:01 --:--:--   360100 62.2M  100 62.2M    0     0  4001k      0  0:00:15  0:00:15 --:--:-- 7140kliumiaocn:~ liumiao$ chmod +x operator-sdk-${RELEASE_VERSION}-x86_64-apple-darwin && sudo mkdir -p /usr/local/bin/ && sudo cp operator-sdk-${RELEASE_VERSION}-x86_64-apple-darwin /usr/local/bin/operator-sdk && rm operator-sdk-${RELEASE_VERSION}-x86_64-apple-darwinPassword:liumiaocn:~ liumiao$

结果确认

liumiaocn:~ liumiao$ which operator-sdk/usr/local/bin/operator-sdkliumiaocn:~ liumiao$ operator-sdk versionoperator-sdk version: "v1.2.0", commit: "215fc50b2d4acc7d92b36828f42d7d1ae212015c", kubernetes version: "v1.18.8", go version: "go1.15.3", GOOS: "darwin", GOARCH: "amd64"liumiaocn:~ liumiao$

其他

BTW，Operator SDK开头的图的颜色的原因是因为这个。

参考内容

https://sdk.operatorframework.io/

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