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Dockerコンテナでチョコレートを実行すると失敗します

Windows Server 2016にdockerがあります。Dockerfileには、chocolateyを介してインストールするビルドツールがいくつか含まれています。上記のDockerfileからイメージをビルドしようとすると、毎回失敗します。チョコレートツールはコンテナ内で実行されていません。

# Use the latest Windows Server Core image. 
FROM Microsoft/windowsservercore

ENV chocolateyUseWindowsCompression false

RUN powershell -Command \
        iex ((new-object net.webclient).DownloadString('https://chocolatey.org/install.ps1')); \
        choco feature disable --name showDownloadProgress

RUN choco install visualstudio2015professional 
RUN choco install qtcreator 
RUN choco install curl 
RUN choco install jq 
RUN choco install 7Zip.install 
RUN choco install jfrog-cli 
RUN choco install jom

Build command here.........
    C:\Program Files\Docker>docker build -t test -f Dockerfile.txt .
    Sending build context to Docker daemon  54.73MB
    Step 1/10 : FROM Microsoft/windowsservercore
    latest: Pulling from Microsoft/windowsservercore
    3889bb8d808b: Pull complete
    fb1ebf2c42b6: Pull complete
    Digest: sha256:750440935dd3ef8ea148a8e4f83a0397540a8014938ae7b59eb78211da1d5969
    Status: Downloaded newer image for Microsoft/windowsservercore:latest
     ---> 7d89a4baf66c
    Step 2/10 : ENV chocolateyUseWindowsCompression false
     ---> Running in 8a7b1fc97da5
     ---> 0f3c89daf01c
    Removing intermediate container 8a7b1fc97da5
    Step 3/10 : RUN powershell -Command     iex ((new-object net.webclient).DownloadString('https://chocolatey.org/install.ps1'));     choco feature disable --name showDownloadProgress
     ---> Running in f7088454db37
    Exception calling "DownloadString" with "1" argument(s): "Unable to connect to
    the remote server"
    At line:1 char:1
    + iex ((new-object net.webclient).DownloadString('https://chocolatey.or ...
    + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
        + FullyQualifiedErrorId : WebException

    choco : The term 'choco' is not recognized as the name of a cmdlet, function,
    script file, or operable program. Check the spelling of the name, or if a path
    was included, verify that the path is correct and try again.
    At line:1 char:88
    + ... .DownloadString('https://chocolatey.org/install.ps1')); choco feature ...
    +                                                             ~~~~~
        + CategoryInfo          : ObjectNotFound: (choco:String) [], CommandNotFou
       ndException
        + FullyQualifiedErrorId : CommandNotFoundException

    The command 'cmd /S /C powershell -Command     iex ((new-object net.webclient).DownloadString('https://chocolatey.org/install.ps1'));     choco feature disable --name showDownloadProgress' returned a non-zero code: 1
dockerwindows-server-2016chocolatey
11
user2301

プロキシ設定を使用して、企業ネットワークにWebからchocoをインストールすることができました。

最初のステップはproxy.ps1を作成することです：

$ProxyAddress = "http://proxy:port"
[system.net.webrequest]::defaultwebproxy = New-Object system.net.webproxy($ProxyAddress)
$CredCache = [System.Net.CredentialCache]::new()
$NetCreds = [System.Net.NetworkCredential]::new("username","password","")
$CredCache.Add($ProxyAddress, "Basic", $NetCreds)
[system.net.webrequest]::defaultwebproxy.credentials = $CredCache
[system.net.webrequest]::defaultwebproxy.BypassProxyOnLocal = $true

次に、Dockfileで、次のようにします。

FROM mcr.Microsoft.com/windows:1809-AMD64 AS base
Shell ["cmd", "/S", "/C"]

# add proxy to powershell profile for all users
ADD proxy.ps1 C:\Windows\System32\WindowsPowerShell\v1.0\profile.ps1
# Install Chocolatey
RUN powershell -ExecutionPolicy unrestricted -Command `
    iex ((New-Object System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1'))
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