Working with the NuGet registry

You can configure the dotnet command-line interface (CLI) to publish NuGet packages to GitHub Packages and to use packages stored on GitHub Packages as dependencies in a .NET project.

GitHub Packages is available with GitHub Free, GitHub Pro, GitHub Free for organizations, GitHub Team, GitHub Enterprise Cloud, GitHub Enterprise Server, and GitHub AE.

Note: When installing or publishing a docker image, GitHub Packages does not currently support foreign layers, such as Windows images.

Bei GitHub Packages authentifizieren

You need an access token to publish, install, and delete packages.

You can use a personal access token (PAT) to authenticate to GitHub Packages or the GitHub API. When you create a personal access token, you can assign the token different scopes depending on your needs. For more information about packages-related scopes for a PAT, see "About permissions for GitHub Packages."

To authenticate to a GitHub Packages registry within a GitHub Actions workflow, you can use:

  • GITHUB_TOKEN to publish packages associated with the workflow repository.
  • a PAT to install packages associated with other private repositories (which GITHUB_TOKEN can't access).

Authenticating with GITHUB_TOKEN in GitHub Actions

Use the following command to authenticate to GitHub Packages in a GitHub Actions workflow using the GITHUB_TOKEN instead of hardcoding a token in a nuget.config file in the repository:

dotnet nuget add source --username USERNAME --password ${{ secrets.GITHUB_TOKEN }} --store-password-in-clear-text --name github "https://nuget.HOSTNAME/OWNER/index.json"

For more information about GITHUB_TOKEN used in GitHub Actions workflows, see "Authentication in a workflow."

Authenticating with a personal access token

Du musst ein persönliches Zugriffstoken mit dem entsprechenden Geltungsbereich verwenden, um Pakete in GitHub Packages zu veröffentlichen und zu installieren. Weitere Informationen findest Du unter „Über GitHub Packages."

To authenticate to GitHub Packages with the dotnet command-line interface (CLI), create a nuget.config file in your project directory specifying GitHub Packages as a source under packageSources for the dotnet CLI client.

You must replace:

  • USERNAME with the name of your user account on GitHub.
  • TOKEN with your personal access token.
  • OWNER with the name of the user or organization account that owns the repository containing your project.
  • HOSTNAME with the host name for your GitHub Enterprise Server instance.

If your instance has subdomain isolation enabled:

<?xml version="1.0" encoding="utf-8"?>
<configuration>
    <packageSources>
        <clear />
        <add key="github" value="https://nuget.HOSTNAME/OWNER/index.json" />
    </packageSources>
    <packageSourceCredentials>
        <github>
            <add key="Username" value="USERNAME" />
            <add key="ClearTextPassword" value="TOKEN" />
        </github>
    </packageSourceCredentials>
</configuration>

If your instance has subdomain isolation disabled:

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>netcoreapp3.0</TargetFramework>
    <PackageId>OctodogApp</PackageId>
    <Version>1.0.0</Version>
    <Authors>Octodog</Authors>
    <Company>GitHub</Company>
    <PackageDescription>This package adds an Octodog!</PackageDescription>
    <RepositoryUrl>https://github.com/octo-org/octo-cats-and-dogs</RepositoryUrl>
  </PropertyGroup>

</Project>

Ein Paket veröffentlichen

You can publish a package to GitHub Packages by authenticating with a nuget.config file, or by using the --api-key command line option with your GitHub personal access token (PAT).

Publishing a package using a GitHub PAT as your API key

If you don't already have a PAT to use for your GitHub account, see "Creating a personal access token."

  1. Create a new project.

    dotnet new console --name OctocatApp
  2. Package the project.

    dotnet pack --configuration Release
  3. Publish the package using your PAT as the API key.

    dotnet nuget push "bin/Release/OctocatApp.1.0.0.nupkg"  --api-key YOUR_GITHUB_PAT --source "github"

Nachdem Du ein Paket veröffentlicht hast, kannst Du das Paket auf GitHub ansehen. Weitere Informationen findest Du unter „Anzeigen von Paketen."

Publishing a package using a nuget.config file

When publishing, you need to use the same value for OWNER in your csproj file that you use in your nuget.config authentication file. Specify or increment the version number in your .csproj file, then use the dotnet pack command to create a .nuspec file for that version. For more information on creating your package, see "Create and publish a package" in the Microsoft documentation.

  1. Authentifizieren bei GitHub Packages. Weitere Informationen findest Du unter „Bei GitHub Packages authentifizieren“.

  2. Create a new project.

    dotnet new console --name OctocatApp
  3. Add your project's specific information to your project's file, which ends in .csproj. You must replace:

    • OWNER with the name of the user or organization account that owns the repository containing your project.
    • REPOSITORY with the name of the repository containing the package you want to publish.
    • 1.0.0 with the version number of the package.
    • HOSTNAME with the host name for your GitHub Enterprise Server instance.
    <Project Sdk="Microsoft.NET.Sdk">
    
      <PropertyGroup>
        <OutputType>Exe</OutputType>
        <TargetFramework>netcoreapp3.0</TargetFramework>
        <PackageId>OctocatApp</PackageId>
        <Version>1.0.0</Version>
        <Authors>Octocat</Authors>
        <Company>GitHub</Company>
        <PackageDescription>This package adds an Octocat!</PackageDescription>
        <RepositoryUrl>https://HOSTNAME/OWNER/REPOSITORY</RepositoryUrl>
      </PropertyGroup>
    
    </Project>
    
  4. Package the project.

    dotnet pack --configuration Release
  5. Publish the package using the key you specified in the nuget.config file.

    dotnet nuget push "bin/Release/OctocatApp.1.0.0.nupkg" --source "github"

Nachdem Du ein Paket veröffentlicht hast, kannst Du das Paket auf GitHub ansehen. Weitere Informationen findest Du unter „Anzeigen von Paketen."

Publishing multiple packages to the same repository

To publish multiple packages to the same repository, you can include the same GitHub repository URL in the RepositoryURL fields in all .csproj project files. GitHub matches the repository based on that field.

For example, the OctodogApp and OctocatApp projects will publish to the same repository:

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>netcoreapp3.0</TargetFramework>
    <PackageId>OctodogApp</PackageId>
    <Version>1.0.0</Version>
    <Authors>Octodog</Authors>
    <Company>GitHub</Company>
    <PackageDescription>This package adds an Octodog!</PackageDescription>
    <RepositoryUrl>https://HOSTNAME/octo-org/octo-cats-and-dogs</RepositoryUrl>
  </PropertyGroup>

</Project>
<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>netcoreapp3.0</TargetFramework>
    <PackageId>OctocatApp</PackageId>
    <Version>1.0.0</Version>
    <Authors>Octocat</Authors>
    <Company>GitHub</Company>
    <PackageDescription>This package adds an Octocat!</PackageDescription>
    <RepositoryUrl>https://HOSTNAME/octo-org/octo-cats-and-dogs</RepositoryUrl>
  </PropertyGroup>

</Project>

Ein Paket installieren

Using packages from GitHub in your project is similar to using packages from nuget.org. Add your package dependencies to your .csproj file, specifying the package name and version. For more information on using a .csproj file in your project, see "Working with NuGet packages" in the Microsoft documentation.

  1. Authentifizieren bei GitHub Packages. Weitere Informationen findest Du unter „Bei GitHub Packages authentifizieren“.

  2. To use a package, add ItemGroup and configure the PackageReference field in the .csproj project file, replacing the OctokittenApp package with your package dependency and 1.0.0 with the version you want to use:

    <Project Sdk="Microsoft.NET.Sdk">
    
      <PropertyGroup>
        <OutputType>Exe</OutputType>
        <TargetFramework>netcoreapp3.0</TargetFramework>
        <PackageId>OctocatApp</PackageId>
        <Version>1.0.0</Version>
        <Authors>Octocat</Authors>
        <Company>GitHub</Company>
        <PackageDescription>This package adds an Octocat!</PackageDescription>
        <RepositoryUrl>https://HOSTNAME/OWNER/REPOSITORY</RepositoryUrl>
      </PropertyGroup>
    
      <ItemGroup>
        <PackageReference Include="OctokittenApp" Version="12.0.2" />
      </ItemGroup>
    
    </Project>
    
  3. Install the packages with the restore command.

    dotnet restore

Problemlösungen

Your NuGet package may fail to push if the RepositoryUrl in .csproj is not set to the expected repository .

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