# Git Providers

Coder integrates with git providers so developers can authenticate with repositories within their workspace.

## How it works

When developers use `git` inside their workspace, they are first prompted to authenticate. After that, Coder will store/refresh tokens for future operations.

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## Configuration

To add a git provider, you'll need to create an OAuth application. The following providers are supported:

- [GitHub](https://docs.github.com/en/developers/apps/building-oauth-apps/creating-an-oauth-app) (GitHub apps are also supported)
- [GitLab](https://docs.gitlab.com/ee/integration/oauth_provider.html)
- [BitBucket](https://support.atlassian.com/bitbucket-cloud/docs/use-oauth-on-bitbucket-cloud/)
- [Azure DevOps](https://learn.microsoft.com/en-us/azure/devops/integrate/get-started/authentication/oauth?view=azure-devops)

Example callback URL: `https://coder.example.com/gitauth/primary-github/callback`. Use an arbitrary ID for your provider (e.g. `primary-github`).

Set the following environment variables to [configure the Coder server](./configure.md):

```console
CODER_GITAUTH_0_ID="primary-github"
CODER_GITAUTH_0_TYPE=github|gitlab|azure-devops|bitbucket
CODER_GITAUTH_0_CLIENT_ID=xxxxxx
CODER_GITAUTH_0_CLIENT_SECRET=xxxxxxx
```

### Self-managed git providers

Custom authentication and token URLs should be
used for self-managed Git provider deployments.

```console
CODER_GITAUTH_0_AUTH_URL="https://github.example.com/oauth/authorize"
CODER_GITAUTH_0_TOKEN_URL="https://github.example.com/oauth/token"
```

### Custom scopes

Optionally, you can request custom scopes:

```console
CODER_GITAUTH_0_SCOPES="repo:read repo:write write:gpg_key"
```

### Multiple git providers (enterprise)

Multiple providers are an Enterprise feature. [Learn more](../enterprise.md).

A custom regex can be used to match a specific repository or organization to limit auth scope. Here's a sample config:

```console
# Provider 1) github.com
CODER_GITAUTH_0_ID=primary-github
CODER_GITAUTH_0_TYPE=github
CODER_GITAUTH_0_CLIENT_ID=xxxxxx
CODER_GITAUTH_0_CLIENT_SECRET=xxxxxxx
CODER_GITAUTH_0_REGEX=github.com/orgname

# Provider 2) github.example.com
CODER_GITAUTH_1_ID=secondary-github
CODER_GITAUTH_1_TYPE=github
CODER_GITAUTH_1_CLIENT_ID=xxxxxx
CODER_GITAUTH_1_CLIENT_SECRET=xxxxxxx
CODER_GITAUTH_1_REGEX=github.example.com
CODER_GITAUTH_1_AUTH_URL="https://github.example.com/oauth/authorize"
CODER_GITAUTH_1_TOKEN_URL="https://github.example.com/oauth/token"
```

To support regex matching for paths (e.g. github.com/orgname), youll need to add this to the [Coder agent startup script](https://registry.terraform.io/providers/coder/coder/latest/docs/resources/agent#startup_script):

```console
git config --global credential.useHttpPath true
```