• Use the GitLab endpoint for NuGet Packages
• Add the package registry as a source for NuGet packages
  • Add a source with the NuGet CLI
    • Project-level endpoint
    • Group-level endpoint
  • Add a source with Visual Studio
    • Project-level endpoint
    • Group-level endpoint
  • Add a source with the .NET CLI
    • Project-level endpoint
    • Group-level endpoint
  • Add a source with a configuration file
    • Project-level endpoint
    • Group-level endpoint
  • Add a source with Chocolatey CLI
    • Configure a project-level endpoint
• Publish a NuGet package
  • Publish a package with the NuGet CLI
  • Publish a package with the .NET CLI
  • Publish a NuGet package by using CI/CD
  • Publish a NuGet package with Chocolatey CLI
  • Publishing a package with the same name or version
  • Do not allow duplicate NuGet packages
• Install packages
  • Install a package with the NuGet CLI
  • Install a package with the .NET CLI
  • Install a package using NuGet v2 feed
• Delete a package
• Symbol packages
  • Use the package registry as a symbol server
    • Consuming symbol packages
• Supported CLI commands
• Example project
• Troubleshooting
  • Clear NuGet cache
  • Errors when trying to publish NuGet packages in a Docker-based GitLab installation

NuGet packages in the package registry

Publish NuGet packages in your project’s package registry. Then, install the packages whenever you need to use them as a dependency.

The package registry works with:

• NuGet CLI
• .NET Core CLI
• Visual Studio

For documentation of the specific API endpoints that these clients use, see the NuGet API documentation.

Learn how to install NuGet.

Use the GitLab endpoint for NuGet Packages

To use the GitLab endpoint for NuGet Packages, choose an option:

• Project-level: Use when you have few NuGet packages and they are not in the same GitLab group.
• Group-level: Use when you have many NuGet packages in different projects within the same GitLab group.

Some features such as publishing a package are only available on the project-level endpoint.

When asking for versions of a given NuGet package name, the GitLab package registry returns a maximum of 300 most recent versions.

Do not use authentication methods other than the methods documented here. Undocumented authentication methods might be removed in the future.

Add the package registry as a source for NuGet packages

To publish and install packages to the package registry, you must add the package registry as a source for your packages.

Prerequisites:

• Your GitLab username.
• A personal access token or deploy token. For repository authentication:
  • You can generate a personal access token.
    • To install packages from the repository, the scope of the token must include read_api or api.
    • To publish packages to the repository, the scope of the token must include api.
  • You can generate a deploy token.
    • To install packages from the repository, the scope of the token must include read_package_registry.
    • To publish packages to the repository, the scope of the token must include write_package_registry.
• A name for your source.
• Depending on the endpoint level you use, either:
  • Your project ID, which is found on your project overview page.
  • Your group ID, which is found on your group’s home page.

You can now add a new source to NuGet with:

• NuGet CLI
• Visual Studio
• .NET CLI
• Configuration file
• Chocolatey CLI

Add a source with the NuGet CLI

Project-level endpoint

A project-level endpoint is required to publish NuGet packages to the package registry. A project-level endpoint is also required to install NuGet packages from a project.

To use the project-level NuGet endpoint, add the package registry as a source with nuget:

nuget source Add -Name <source_name> -Source "https://gitlab.example.com/api/v4/projects/<your_project_id>/packages/nuget/index.json" -UserName <gitlab_username or deploy_token_username> -Password <gitlab_personal_access_token or deploy_token>

• <source_name> is the desired source name.

For example:

nuget source Add -Name "GitLab" -Source "https://gitlab.example.com/api/v4/projects/10/packages/nuget/index.json" -UserName carol -Password 12345678asdf

Group-level endpoint

To install a NuGet package from a group, use a group-level endpoint.

To use the group-level NuGet endpoint, add the package registry as a source with nuget:

nuget source Add -Name <source_name> -Source "https://gitlab.example.com/api/v4/groups/<your_group_id>/-/packages/nuget/index.json" -UserName <gitlab_username or deploy_token_username> -Password <gitlab_personal_access_token or deploy_token>

• <source_name> is the desired source name.

For example:

nuget source Add -Name "GitLab" -Source "https://gitlab.example.com/api/v4/groups/23/-/packages/nuget/index.json" -UserName carol -Password 12345678asdf

Add a source with Visual Studio

Project-level endpoint

A project-level endpoint is required to publish NuGet packages to the package registry. A project-level endpoint is also required to install NuGet packages from a project.

To use the project-level NuGet endpoint, add the package registry as a source with Visual Studio:

1. Open Visual Studio.
2. In Windows, select Tools > Options. On macOS, select Visual Studio > Preferences.
3. In the NuGet section, select Sources to view a list of all your NuGet sources.
4. Select Add.

5. Complete the following fields:

   • Name: Name for the source.
   • Source: https://gitlab.example.com/api/v4/projects/<your_project_id>/packages/nuget/index.json, where <your_project_id> is your project ID, and gitlab.example.com is your domain name.
6. Select Save.

7. When you access the package, you must enter your Username and Password:

   • Username: Your GitLab username or deploy token username.
   • Password: Your personal access token or deploy token.

The source is displayed in your list.

If you get a warning, ensure that the Source, Username, and Password are correct.

Group-level endpoint

To install a package from a group, use a group-level endpoint.

To use the group-level NuGet endpoint, add the package registry as a source with Visual Studio:

1. Open Visual Studio.
2. In Windows, select Tools > Options. On macOS, select Visual Studio > Preferences.
3. In the NuGet section, select Sources to view a list of all your NuGet sources.
4. Select Add.

5. Complete the following fields:

   • Name: Name for the source.
   • Source: https://gitlab.example.com/api/v4/groups/<your_group_id>/-/packages/nuget/index.json, where <your_group_id> is your group ID, and gitlab.example.com is your domain name.
6. Select Save.

7. When you access the package, you must enter your Username and Password.

   • Username: Your GitLab username or deploy token username.
   • Password: Your personal access token or deploy token.

The source is displayed in your list.

If you get a warning, ensure that the Source, Username, and Password are correct.

Add a source with the .NET CLI

Project-level endpoint

A project-level endpoint is required to publish NuGet packages to the package registry. A project-level endpoint is also required to install NuGet packages from a project.

To use the project-level NuGet endpoint, add the package registry as a source with nuget:

dotnet nuget add source "https://gitlab.example.com/api/v4/projects/<your_project_id>/packages/nuget/index.json" --name <source_name> --username <gitlab_username or deploy_token_username> --password <gitlab_personal_access_token or deploy_token>

• <source_name> is the desired source name.
• --store-password-in-clear-text might be necessary depending on your operating system.

For example:

dotnet nuget add source "https://gitlab.example.com/api/v4/projects/10/packages/nuget/index.json" --name gitlab --username carol --password 12345678asdf

Group-level endpoint

To install a NuGet package from a group, use a group-level endpoint.

To use the group-level NuGet endpoint, add the package registry as a source with nuget:

dotnet nuget add source "https://gitlab.example.com/api/v4/groups/<your_group_id>/-/packages/nuget/index.json" --name <source_name> --username <gitlab_username or deploy_token_username> --password <gitlab_personal_access_token or deploy_token>

• <source_name> is the desired source name.
• --store-password-in-clear-text might be necessary depending on your operating system.

For example:

dotnet nuget add source "https://gitlab.example.com/api/v4/groups/23/-/packages/nuget/index.json" --name gitlab --username carol --password 12345678asdf

Add a source with a configuration file

Project-level endpoint

A project-level endpoint is required to:

• Publish NuGet packages to the package registry.
• Install NuGet packages from a project.

To use the project-level package registry as a source for .NET:

1. In the root of your project, create a file named nuget.config.

2. Add this content:

   <?xml version="1.0" encoding="utf-8"?>
   <configuration>
    <packageSources>
        <clear />
        <add key="gitlab" value="https://gitlab.example.com/api/v4/projects/<your_project_id>/packages/nuget/index.json" />
    </packageSources>
    <packageSourceCredentials>
        <gitlab>
            <add key="Username" value="%GITLAB_PACKAGE_REGISTRY_USERNAME%" />
            <add key="ClearTextPassword" value="%GITLAB_PACKAGE_REGISTRY_PASSWORD%" />
        </gitlab>
    </packageSourceCredentials>
   </configuration>
   

3. Configure the necessary environment variables:

   export GITLAB_PACKAGE_REGISTRY_USERNAME=<gitlab_username or deploy_token_username>
   export GITLAB_PACKAGE_REGISTRY_PASSWORD=<gitlab_personal_access_token or deploy_token>
   

Group-level endpoint

To install a package from a group, use a group-level endpoint.

To use the group-level package registry as a source for .NET:

1. In the root of your project, create a file named nuget.config.

2. Add this content:

   <?xml version="1.0" encoding="utf-8"?>
   <configuration>
    <packageSources>
        <clear />
        <add key="gitlab" value="https://gitlab.example.com/api/v4/groups/<your_group_id>/-/packages/nuget/index.json" />
    </packageSources>
    <packageSourceCredentials>
        <gitlab>
            <add key="Username" value="%GITLAB_PACKAGE_REGISTRY_USERNAME%" />
            <add key="ClearTextPassword" value="%GITLAB_PACKAGE_REGISTRY_PASSWORD%" />
        </gitlab>
    </packageSourceCredentials>
   </configuration>
   

3. Configure the necessary environment variables:

   export GITLAB_PACKAGE_REGISTRY_USERNAME=<gitlab_username or deploy_token_username>
   export GITLAB_PACKAGE_REGISTRY_PASSWORD=<gitlab_personal_access_token or deploy_token>
   

Add a source with Chocolatey CLI

You can add a source feed with the Chocolatey CLI. If you use Chocolatey CLI v1.x, you can add only a NuGet v2 source feed.

Configure a project-level endpoint

You need a project-level endpoint to publish NuGet packages to the package registry.

To use the project-level package registry as a source for Chocolatey:

• Add the package registry as a source with choco:

  choco source add -n=gitlab -s "'https://gitlab.example.com/api/v4/projects/<your_project_id>/packages/nuget/v2'" -u=<gitlab_username or deploy_token_username> -p=<gitlab_personal_access_token or deploy_token>
  

Publish a NuGet package

Prerequisites:

• Set up the source with a project-level endpoint.

When publishing packages:

• The package registry on GitLab.com can store up to 5 GB of content. This limit is configurable for self-managed GitLab instances.
• If you publish the same package with the same version multiple times, each consecutive upload is saved as a separate file. When installing a package, GitLab serves the most recent file.
• When publishing packages to GitLab, they aren’t displayed in the packages user interface of your project immediately. It can take up to 10 minutes to process a package.

Publish a package with the NuGet CLI

Prerequisites:

• A NuGet package created with NuGet CLI.
• Set a project-level endpoint.

Publish a package by running this command:

nuget push <package_file> -Source <source_name>

• <package_file> is your package filename, ending in .nupkg.
• <source_name> is the source name used during setup.

Publish a package with the .NET CLI

Prerequisites:

• A NuGet package created with .NET CLI.
• Set a project-level endpoint.

Publish a package by running this command:

dotnet nuget push <package_file> --source <source_name>

• <package_file> is your package filename, ending in .nupkg.
• <source_name> is the source name used during setup.

For example:

dotnet nuget push MyPackage.1.0.0.nupkg --source gitlab

You can publish a package using the --api-key option instead of username and password:

dotnet nuget push <package_file> --source <source_url> --api-key <gitlab_personal_access_token, deploy_token or job token>

• <package_file> is your package filename, ending in .nupkg.
• <source_url> is the URL of the NuGet package registry.

For example:

dotnet nuget push MyPackage.1.0.0.nupkg --source https://gitlab.example.com/api/v4/projects/<your_project_id>/packages/nuget/index.json --api-key <gitlab_personal_access_token, deploy_token or job token>

Publish a NuGet package by using CI/CD

If you’re using NuGet with GitLab CI/CD, a CI job token can be used instead of a personal access token or deploy token. The token inherits the permissions of the user that generates the pipeline.

This example shows how to create a new package each time the main branch is updated:

1. Add a deploy job to your .gitlab-ci.yml file:

   image: mcr.microsoft.com/dotnet/core/sdk:3.1
   
   stages:
     - deploy
   
   deploy:
     stage: deploy
     script:
       - dotnet pack -c Release
       - dotnet nuget add source "${CI_API_V4_URL}/projects/${CI_PROJECT_ID}/packages/nuget/index.json" --name gitlab --username gitlab-ci-token --password $CI_JOB_TOKEN --store-password-in-clear-text
       - dotnet nuget push "bin/Release/*.nupkg" --source gitlab
     only:
       - main
     environment: production
   

2. Commit the changes and push it to your GitLab repository to trigger a new CI/CD build.

Publish a NuGet package with Chocolatey CLI

Prerequisites:

• The project-level package registry is a source for Chocolatey.

To publish a package with the Chocolatey CLI:

choco push <package_file> --source <source_url> --api-key <gitlab_personal_access_token, deploy_token or job token>

In this command:

• <package_file> is your package filename and ends with .nupkg.
• <source_url> is the URL of the NuGet v2 feed package registry.

For example:

choco push MyPackage.1.0.0.nupkg --source "https://gitlab.example.com/api/v4/projects/<your_project_id>/packages/nuget/v2" --api-key <gitlab_personal_access_token, deploy_token or job token>

Publishing a package with the same name or version

When you publish a package with the same name or version as an existing package, the existing package is overwritten.

Do not allow duplicate NuGet packages

To prevent users from publishing duplicate NuGet packages, you can use the GraphQl API or the UI.

In the UI:

1. On the left sidebar, select Search or go to and find your group.
2. Select Settings > Packages and registries.
3. In the NuGet row of the Duplicate packages table, turn off the Allow duplicates toggle.
4. Optional. In the Exceptions text box, enter a regular expression that matches the names and versions of packages to allow.

Your changes are automatically saved.

Install packages

If multiple packages have the same name and version, when you install a package, the most recently-published package is retrieved.

To install a NuGet package from the package registry, you must first add a project-level or group-level endpoint.

Install a package with the NuGet CLI

Install the latest version of a package by running this command:

nuget install <package_id> -OutputDirectory <output_directory> \
  -Version <package_version> \
  -Source <source_name>

• <package_id> is the package ID.
• <output_directory> is the output directory, where the package is installed.
• <package_version> The package version. Optional.
• <source_name> The source name. Optional.

Install a package with the .NET CLI

Install the latest version of a package by running this command:

dotnet add package <package_id> \
       -v <package_version>

• <package_id> is the package ID.
• <package_version> is the package version. Optional.

Install a package using NuGet v2 feed

Prerequisites:

• The project-level package registry is a v2 feed source for Chocolatey.
• A version must be provided when installing or upgrading a package using NuGet v2 feed.

To install a package with the Chocolatey CLI:

choco install <package_id> -Source <source_url> -Version <package_version>

In this command:

• <package_id> is the package ID.
• <source_url> is the URL or name of the NuGet v2 feed package registry.
• <package_version> is the package version.

For example:

choco install MyPackage -Source gitlab -Version 1.0.2

# or

choco install MyPackage -Source "https://gitlab.example.com/api/v4/projects/<your_project_id>/packages/nuget/v2" -u <username> -p <gitlab_personal_access_token, deploy_token or job token> -Version 1.0.2

To upgrade a package with the Chocolatey CLI:

choco upgrade <package_id> -Source <source_url> -Version <package_version>

In this command:

• <package_id> is the package ID.
• <source_url> is the URL or name of the NuGet v2 feed package registry.
• <package_version> is the package version.

For example:

choco upgrade MyPackage -Source gitlab -Version 1.0.3

Delete a package

Prerequisites:

• You must have the Maintainer role or higher in the project.
• You must have both the package name and version.

To delete a package with the NuGet CLI:

nuget delete <package_id> <package_version> -Source <source_name> -ApiKey <gitlab_personal_access_token, deploy_token or job token>

In this command:

• <package_id> is the package ID.
• <package_version> is the package version.
• <source_name> is the source name.

For example:

nuget delete MyPackage 1.0.0 -Source gitlab -ApiKey <gitlab_personal_access_token, deploy_token or job token>

Symbol packages

If you push a .nupkg, symbol package files in the .snupkg format are uploaded automatically. You can also push them manually:

nuget push My.Package.snupkg -Source <source_name>

Use the package registry as a symbol server

GitLab can consume symbol files from the NuGet package registry, so you can use the package registry as a symbol server.

To use the symbol server:

1. Enable the nuget_symbol_server_enabled namespace setting with the GraphQl API.

2. Configure your debugger to use the symbol server. For example, to configure Visual Studio:

   1. Open Tools > Preferences.
   2. Select Debugger > Symbol sources.
   3. Select Add.

   4. Fill in the required fields. The URL for the symbol server is:

      https://gitlab.example.com/api/v4/projects/<your_project_id>/packages/nuget/symbolfiles
      -- or --
      https://gitlab.example.com/api/v4/groups/<your_group_id>/-/packages/nuget/symbolfiles
      

   5. Select Add Source.

After you configure the debugger, you can debug your application as usual. The debugger automatically downloads the symbol PDB files from the package registry as long as they’re available.

Consuming symbol packages

When the debugger is configured to consume symbol packages, the debugger sends the following in a request:

• Symbolchecksum header: The SHA-256 checksum of the symbol file.
• file_name request parameter: The name of the symbol file. For example, mypackage.pdb.
• signature request parameter: The GUID and age of the PDB file.

The GitLab server matches this information to a symbol file and returns it.

Note that:

• Only portable PDB files are supported.
• Because debuggers can’t provide authentication tokens, the symbol server endpoint doesn’t support the usual authentication methods. The GitLab server requires the signature and Symbolchecksum to return the correct symbol file.

Supported CLI commands

The GitLab NuGet repository supports the following commands for the NuGet CLI (nuget) and the .NET CLI (dotnet):

• nuget push: Upload a package to the registry.
• dotnet nuget push: Upload a package to the registry.
• nuget install: Install a package from the registry.
• dotnet add: Install a package from the registry.
• nuget delete: Delete a package from the registry.
• dotnet nuget delete: Delete a package from the registry.

Example project

For an example, see the Guided Exploration project Utterly Automated Software and Artifact Versioning with GitVersion. This project:

• Generates NuGet packages by the msbuild method.
• Generates NuGet packages by the nuget.exe method.
• Uses GitLab releases and release-cli in connection with NuGet packaging.
• Uses a tool called GitVersion to automatically determine and increment versions for the NuGet package in complex repositories.

You can copy this example project to your own group or instance for testing. See the project page for more details on what other GitLab CI patterns are demonstrated.

Troubleshooting

Clear NuGet cache

To improve performance, NuGet caches files related to a package. If you encounter issues, clear the cache with this command:

nuget locals all -clear

Errors when trying to publish NuGet packages in a Docker-based GitLab installation

Webhook requests to local network addresses are blocked to prevent exploitation of internal web services. If you get Error publishing or Invalid Package: Failed metadata extraction error messages when you try to publish NuGet packages, change your network settings to allow webhook and integration requests to the local network.