Disabling or limiting GitHub Actions for a repository

About GitHub Actions permissions for your repository

By default, GitHub Actions is enabled on all repositories and organizations. You can choose to disable GitHub Actions or limit them to private actions only, which means that people can only use actions that exist in your repository. For more information about GitHub Actions, see "About GitHub Actions."

You can enable GitHub Actions for your repository. When you enable GitHub Actions, workflows are able to run actions located within your repository and any other public repository. You can disable GitHub Actions for your repository altogether. When you disable GitHub Actions, no workflows run in your repository.

Alternatively, you can enable GitHub Actions in your repository but limit the actions a workflow can run. When you enable local actions only, workflows can only run actions located in your repository or organization.

Managing GitHub Actions permissions for your repository

You can disable all workflows for a repository or set a policy that configures which actions can be used in a repository.

If you choose the option to Allow specific actions, there are additional options that you can configure. For more information, see "Allowing specific actions to run."

When you allow local actions only, the policy blocks all access to actions authored by GitHub. For example, the actions/checkout would not be accessible.

1. On GitHub, navigate to the main page of the repository.
2. Under your repository name, click Settings.
   
3. In the left sidebar, click Actions.
   
4. Under Actions permissions, select an option.
   
5. Click Save.

Allowing specific actions to run

When you select the Allow select actions, there are additional options that you need to choose to configure the allowed actions:

• Allow actions created by GitHub: You can allow all actions created by GitHub to be used by workflows. Actions created by GitHub are located in the actions and github organization. For more information, see the actions and github organizations.

• Allow Marketplace actions by verified creators: You can allow all GitHub Marketplace actions created by verified creators to be used by workflows. When GitHub has verified the creator of the action as a partner organization, the badge is displayed next to the action in GitHub Marketplace.

• Allow specified actions: You can restrict workflows to use actions in specific organizations and repositories.

  To restrict access to specific tags or commit SHAs of an action, use the same <OWNER>/<REPO>@<TAG OR SHA> syntax used in the workflow to select the action. For example, actions/javascript-action@v1.0.1 to select a tag or actions/javascript-action@172239021f7ba04fe7327647b213799853a9eb89 to select a SHA. For more information, see "Finding and customizing actions."

  You can use the * wildcard character to match patterns. For example, to allow all actions in organizations that start with space-org, you can specify space-org*/*. To add all actions in repositories that start with octocat, you can use */octocat*@*. For more information about using the * wildcard, see "Workflow syntax for GitHub Actions."

  Note: The Allow specified actions option is only available in public repositories with the GitHub Free, GitHub Pro, GitHub Free for organizations, or GitHub Team plan.

This procedure demonstrates how to add specific actions to the allow list.

1. On GitHub, navigate to the main page of the repository.
2. Under your repository name, click Settings.
   
3. In the left sidebar, click Actions.
   
4. Under Actions permissions, select Allow specific actions and add your required actions to the list.
   
5. Click Save.

Enabling workflows for private repository forks

If you rely on using forks of your private repositories, you can configure policies that control how users can run workflows on pull_request events. Available to private repositories only, you can configure these policy settings for enterprises, organizations, or repositories. For enterprises, the policies are applied to all repositories in all organizations.

• Run workflows from fork pull requests - Allows users to run workflows from fork pull requests, using a GITHUB_TOKEN with read-only permission, and with no access to secrets.
• Send write tokens to workflows from pull requests - Allows pull requests from forks to use a GITHUB_TOKEN with write permission.
• Send secrets to workflows from pull requests - Makes all secrets available to the pull request.

Configuring the private fork policy for a repository

1. On GitHub, navigate to the main page of the repository.
2. Under your repository name, click Settings.
   
3. In the left sidebar, click Actions.
   
4. Under Fork pull request workflows, select your options. For example:
   
5. Click Save to apply the settings.