Configuring OpenID Connect in PyPI

Use OpenID Connect within your workflows to authenticate with PyPI.

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Overview

OpenID Connect (OIDC) allows your GitHub Actions workflows to authenticate with PyPI to publish Python packages.

This guide gives an overview of how to configure PyPI to trust GitHub's OIDC as a federated identity, and demonstrates how to use this configuration in the pypa/gh-action-pypi-publish action to publish packages to PyPI (or other Python package repositories) without any manual API token management.

Prerequisites

  • GitHub が OpenID Connect (OIDC) を使用する方法の基本的な概念とそのアーキテクチャと利点については、「OpenID Connect を使ったセキュリティ強化について」を参照してください。

  • 先に進む前に、アクセス トークンが予測可能な方法でのみ割り当てられるようにセキュリティ戦略を計画する必要があります。 クラウド プロバイダーがアクセス トークンを発行する方法を制御するには、少なくとも 1 つの条件を定義し、信頼できないリポジトリがクラウド リソースにアクセス トークンを要求できないようにする必要があります。 詳しくは、「OpenID Connect を使ったセキュリティ強化について」をご覧ください。

Adding the identity provider to PyPI

To use OIDC with PyPI, add a trust configuration that links each project on PyPI to each repository and workflow combination that's allowed to publish for it.

  1. Sign in to PyPI and navigate to the trusted publishing settings for the project you'd like to configure. For a project named myproject, this will be at http://pypi.org/manage/project/myproject/settings/publishing/.

  2. Configure a trust relationship between the PyPI project and a GitHub repository (and workflow within the repository). For example, if your GitHub repository is at myorg/myproject and your release workflow is defined in release.yml with an environment of release, you should use the following settings for your trusted publisher on PyPI.

    メモ

    Enter these values carefully. Giving the incorrect user, repository, or workflow the ability to publish to your PyPI project is equivalent to sharing an API token.

    • Owner: myorg
    • Repository name: myproject
    • Workflow name: release.yml
    • (Optionally) a GitHub Actions environment name: release

Updating your GitHub Actions workflow

Once your trusted publisher is registered on PyPI, you can update your release workflow to use trusted publishing.

メモ

環境がワークフローまたは OIDC ポリシーで使われる場合は、セキュリティを強化するために環境に保護規則を追加することをお勧めします。 たとえば、環境のデプロイ規則を構成して、環境にデプロイできるブランチとタグを制限したり、環境シークレットにアクセスしたりできます。 詳しくは、「Managing environments for deployment」をご覧ください。

The pypa/gh-action-pypi-publish action has built-in support for trusted publishing, which can be enabled by giving its containing job the id-token: write permission and omitting username and password.

The following example uses the pypa/gh-action-pypi-publish action to exchange an OIDC token for a PyPI API token, which is then used to upload a package's release distributions to PyPI.

YAML
jobs:
  release-build:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-python@v5
        with:
          python-version: "3.x"

      - name: build release distributions
        run: |
          # NOTE: put your own distribution build steps here.
          python -m pip install build
          python -m build

      - name: upload windows dists
        uses: actions/upload-artifact@v4
        with:
          name: release-dists
          path: dist/

  pypi-publish:
    runs-on: ubuntu-latest
    needs:
      - release-build
    permissions:
      id-token: write

    steps:
      - name: Retrieve release distributions
        uses: actions/download-artifact@v4
        with:
          name: release-dists
          path: dist/

      - name: Publish release distributions to PyPI
        uses: pypa/gh-action-pypi-publish@3e4f5a6b7c8d9e0f1a2b3c4d5e6f7a8b9c0d1e2f