Dockerfile安装软件示例

如何构建Node.js Nano Server Docker基础映像
参考文章:https://stefanscherer.github.io/how-to-build-nodejs-nanoserver-image/
nanoserver 不支持安装msi文件,所以通过上面一篇文章可以查看间接安装方法
nanoserver不支持windows的任何安装，只支持zip等压缩包解压配置环境变量形式的安装

FROM microsoft/windowsservercore

SHELL ["powershell", "-Command", "$ErrorActionPreference = 'Stop'; $ProgressPreference = 'SilentlyContinue';"]

ENV chocolateyUseWindowsCompression false

RUN iex ((new-object net.webclient).DownloadString('https://chocolatey.org/install.ps1'));

RUN choco install -y nodejs -version 7.3.0
RUN choco install -y git -params "/GitAndUnixToolsOnPath"
RUN npm install --global --production windows-build-tools

RUN git clone https://github.com/nodejs/node.git
RUN cd node ; git pull ; \
    $env:PATH += ';C:\Users\ContainerAdministrator\.windows-build-tools\python27' ; \
    .\vcbuild.bat test nosign
    
    
／／ 
  windows-build-tools的作用是在window上面安装常见的编译工具，如python、Visual C++ Compilers tools等
  npm install --global windows-build-tools
  参考手册如下
  https://www.npmjs.com/package/windows-build-tools
／／================================================


FROM microsoft/nanoserver

ARG NODE_VERSION=4.6.1

RUN powershell -Command \
    Invoke-WebRequest https://nodejs.org/dist/v$env:NODE_VERSION/win-x64/node.exe \
      -OutFile node.exe -UseBasicParsing

CMD [ "node.exe" ]

# 如上，用--build-arg NODE_VERSION可以将参数传递到Dockerfile中覆盖ARG NODE_VERSION的默认值
docker build -t nodeexe:4.6.1 --build-arg NODE_VERSION=4.6.1 .


／／================================================
powershell的if elseif  等流程控制语句
If

Conditionally perform a command.

Syntax
      if ( condition ) { commands_to_execute }
      [ elseif ( condition2 ) { commands_to_execute } ]
      [ else {commands_to_execute} ]

Key
   Condition  An expression that will evaluate to true or false,
              often utilising one or more comparison operators.

   commands_to_execute
              A PowerShell or external command to run if the condition is true.