--- stage: Package group: Package Registry info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/product/ux/technical-writing/#assignments --- # Supported package functionality The GitLab Package Registry supports different functionalities for each package type. This support includes publishing and pulling packages, request forwarding, managing duplicates, and authentication. ## Publishing packages **(FREE)** Packages can be published to your project, group, or instance. | Package type | Project | Group | Instance | |-----------------------------------------------------|---------|-------|----------| | [Maven](../maven_repository/index.md) | Y | N | N | | [npm](../npm_registry/index.md) | Y | N | N | | [NuGet](../nuget_repository/index.md) | Y | N | N | | [PyPI](../pypi_repository/index.md) | Y | N | N | | [Generic packages](../generic_packages/index.md) | Y | N | N | | [Terraform](../terraform_module_registry/index.md) | Y | N | N | | [Composer](../composer_repository/index.md) | N | Y | N | | [Conan](../conan_repository/index.md) | Y | N | N | | [Helm](../helm_repository/index.md) | Y | N | N | | [Debian](../debian_repository/index.md) | Y | N | N | | [Go](../go_proxy/index.md) | Y | N | Y | | [Ruby gems](../rubygems_registry/index.md) | Y | N | N | ## Pulling packages **(FREE)** Packages can be pulled from your project, group, or instance. | Package type | Project | Group | Instance | |-----------------------------------------------------|---------|-------|----------| | [Maven](../maven_repository/index.md) | Y | Y | Y | | [npm](../npm_registry/index.md) | Y | N | Y | | [NuGet](../nuget_repository/index.md) | Y | Y | N | | [PyPI](../pypi_repository/index.md) | Y | Y | N | | [Generic packages](../generic_packages/index.md) | Y | N | N | | [Terraform](../terraform_module_registry/index.md) | N | Y | N | | [Composer](../composer_repository/index.md) | Y | Y | N | | [Conan](../conan_repository/index.md) | Y | N | Y | | [Helm](../helm_repository/index.md) | Y | N | N | | [Debian](../debian_repository/index.md) | Y | N | N | | [Go](../go_proxy/index.md) | Y | N | Y | | [Ruby gems](../rubygems_registry/index.md) | Y | N | N | ## Forwarding requests **(PREMIUM)** Requests for packages not found in your GitLab project are forwarded to the public registry. For example, Maven Central, npmjs, or PyPI. | Package type | Supports request forwarding | |-----------------------------------------------------|-----------------------------| | [Maven](../maven_repository/index.md) | [Yes (disabled by default)](../../admin_area/settings/continuous_integration.md#maven-forwarding) | | [npm](../npm_registry/index.md) | [Yes](../../admin_area/settings/continuous_integration.md#npm-forwarding) | | [NuGet](../nuget_repository/index.md) | N | | [PyPI](../pypi_repository/index.md) | [Yes](../../admin_area/settings/continuous_integration.md#pypi-forwarding) | | [Generic packages](../generic_packages/index.md) | N | | [Terraform](../terraform_module_registry/index.md) | N | | [Composer](../composer_repository/index.md) | N | | [Conan](../conan_repository/index.md) | N | | [Helm](../helm_repository/index.md) | N | | [Debian](../debian_repository/index.md) | N | | [Go](../go_proxy/index.md) | N | | [Ruby gems](../rubygems_registry/index.md) | N | ### Deleting packages When package requests are forwarded to a public registry, deleting packages can be a [dependency confusion vulnerability](https://medium.com/@alex.birsan/dependency-confusion-4a5d60fec610). If a system tries to pull a deleted package, the request is forwarded to the public registry. If a package with the same name and version is found in the public registry, that package is pulled instead. There is a risk that the package pulled from the registry might not be what is expected, and could even be malicious. To reduce the associated security risks, before deleting a package you can: - Verify the package is not being actively used. - Disable request forwarding: - Instance administrators can disable forwarding in the [**Continuous Integration** section](../../admin_area/settings/continuous_integration.md#package-registry-configuration) of the Admin Area. - Group owners can disable forwarding in the **Packages and Registries** section of the group settings. ## Allow or prevent duplicates **(FREE)** By default, the GitLab package registry either allows or prevents duplicates based on the default of that specific package manager format. | Package type | Duplicates allowed? | |-----------------------------------------------------|---------------------| | [Maven](../maven_repository/index.md) | Y (configurable) | | [npm](../npm_registry/index.md) | N | | [NuGet](../nuget_repository/index.md) | Y | | [PyPI](../pypi_repository/index.md) | N | | [Generic packages](../generic_packages/index.md) | Y (configurable) | | [Terraform](../terraform_module_registry/index.md) | N | | [Composer](../composer_repository/index.md) | N | | [Conan](../conan_repository/index.md) | N | | [Helm](../helm_repository/index.md) | Y | | [Debian](../debian_repository/index.md) | Y | | [Go](../go_proxy/index.md) | N | | [Ruby gems](../rubygems_registry/index.md) | Y | ## Authentication tokens **(FREE)** GitLab tokens are used to authenticate with the GitLab Package Registry. The following tokens are supported: | Package type | Supported tokens | |-----------------------------------------------------|------------------------------------------------------------------------| | [Maven](../maven_repository/index.md) | Personal access, job tokens, deploy (project or group), project access | | [npm](../npm_registry/index.md) | Personal access, job tokens, deploy (project or group), project access | | [NuGet](../nuget_repository/index.md) | Personal access, job tokens, deploy (project or group), project access | | [PyPI](../pypi_repository/index.md) | Personal access, job tokens, deploy (project or group), project access | | [Generic packages](../generic_packages/index.md) | Personal access, job tokens, deploy (project or group), project access | | [Terraform](../terraform_module_registry/index.md) | Personal access, job tokens, deploy (project or group), project access | | [Composer](../composer_repository/index.md) | Personal access, job tokens, deploy (project or group), project access | | [Conan](../conan_repository/index.md) | Personal access, job tokens, project access | | [Helm](../helm_repository/index.md) | Personal access, job tokens, deploy (project or group) | | [Debian](../debian_repository/index.md) | Personal access, job tokens, deploy (project or group) | | [Go](../go_proxy/index.md) | Personal access, job tokens, project access | | [Ruby gems](../rubygems_registry/index.md) | Personal access, job tokens, deploy (project or group) | ## Authentication protocols **(FREE)** The following authentication protocols are supported: | Package type | Supported auth protocols | |-----------------------------------------------------|--------------------------| | [Maven](../maven_repository/index.md) | Headers | | [npm](../npm_registry/index.md) | OAuth | | [NuGet](../nuget_repository/index.md) | Basic auth | | [PyPI](../pypi_repository/index.md) | Basic auth | | [Generic packages](../generic_packages/index.md) | Basic auth | | [Terraform](../terraform_module_registry/index.md) | Token | | [Composer](../composer_repository/index.md) | OAuth | | [Conan](../conan_repository/index.md) | OAuth, Basic auth | | [Helm](../helm_repository/index.md) | Basic auth | | [Debian](../debian_repository/index.md) | Basic auth | | [Go](../go_proxy/index.md) | Basic auth | | [Ruby gems](../rubygems_registry/index.md) | Token | ## Supported hash types **(FREE)** Hash values are used to ensure you are using the correct package. You can view these values in the user interface or with the [API](../../../api/packages.md). The Package Registry supports the following hash types: | Package type | Supported hashes | |--------------------------------------------------|----------------------------------| | [Maven](../maven_repository/index.md) | MD5, SHA1 | | [npm](../npm_registry/index.md) | SHA1 | | [NuGet](../nuget_repository/index.md) | not applicable | | [PyPI](../pypi_repository/index.md) | MD5, SHA256 | | [Generic packages](../generic_packages/index.md) | SHA256 | | [Composer](../composer_repository/index.md) | not applicable | | [Conan](../conan_repository/index.md) | MD5, SHA1 | | [Helm](../helm_repository/index.md) | not applicable | | [Debian](../debian_repository/index.md) | MD5, SHA1, SHA256 | | [Go](../go_proxy/index.md) | MD5, SHA1, SHA256 | | [Ruby gems](../rubygems_registry/index.md) | MD5, SHA1, SHA256 (gemspec only) |