mirror of https://github.com/coder/coder.git
docs: add GitLab auth docs (#5923)
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@ -46,13 +46,52 @@ CODER_OAUTH2_GITHUB_ALLOW_EVERYONE=true
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Once complete, run `sudo service coder restart` to reboot Coder.
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## OpenID Connect with Google
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## GitLab
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> We describe how to set up the most popular OIDC provider, Google, but any (Okta, Azure Active Directory, GitLab, Auth0, etc.) may be used.
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### Step 1: Configure the OAuth application in your GitLab instance
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First, [register a GitLab OAuth application](https://docs.gitlab.com/ee/integration/oauth_provider.html). GitLab will ask you for the following parameter:
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- **Redirect URI**: Set to `https://coder.domain.com/api/v2/users/oidc/callback`
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### Step 2: Configure Coder with the OpenID Connect credentials
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Navigate to your Coder host and run the following command to start up the Coder
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server:
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```console
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coder server --oidc-issuer-url="https://gitlab.com" --oidc-email-domain="your-domain-1,your-domain-2" --oidc-client-id="533...des" --oidc-client-secret="G0CSP...7qSM"
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```
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Alternatively, if you are running Coder as a system service, you can achieve the
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same result as the command above by adding the following environment variables
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to the `/etc/coder.d/coder.env` file:
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```console
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CODER_OIDC_ISSUER_URL="https://gitlab.com"
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CODER_OIDC_EMAIL_DOMAIN="your-domain-1,your-domain-2"
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CODER_OIDC_CLIENT_ID="533...des"
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CODER_OIDC_CLIENT_SECRET="G0CSP...7qSM"
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```
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Once complete, run `sudo service coder restart` to reboot Coder.
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### Additional Notes
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GitLab maintains configuration settings for OIDC applications at the following URL:
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```console
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https://gitlab.com/.well-known/openid-configuration
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```
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If you are using a self-hosted GitLab instance, replace `gitlab.com` in the above URL
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with your internal domain. The same will apply for the `OIDC_ISSUER_URL` variable.
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## OpenID Connect with Google
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### Step 1: Configure the OAuth application on Google Cloud
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First, [register a Google OAuth app](https://support.google.com/cloud/answer/6158849?hl=en). Google will ask you for the following Coder parameters:
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First, [register a Google OAuth application](https://support.google.com/cloud/answer/6158849?hl=en). Google will ask you for the following Coder parameters:
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- **Authorized JavaScript origins**: Set to your Coder domain (e.g. `https://coder.domain.com`)
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- **Redirect URIs**: Set to `https://coder.domain.com/api/v2/users/oidc/callback`
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@ -79,14 +118,7 @@ CODER_OIDC_CLIENT_SECRET="G0CSP...7qSM"
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Once complete, run `sudo service coder restart` to reboot Coder.
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> When a new user is created, the `preferred_username` claim becomes the username. If this claim is empty, the email address will be stripped of the domain, and become the username (e.g. `example@coder.com` becomes `example`).
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If your OpenID Connect provider requires client TLS certificates for authentication, you can configure them like so:
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```console
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CODER_TLS_CLIENT_CERT_FILE=/path/to/cert.pem
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CODER_TLS_CLIENT_KEY_FILE=/path/to/key.pem
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```
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## OIDC Claims
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Coder requires all OIDC email addresses to be verified by default. If the `email_verified` claim is present in the token response from the identity provider, Coder will validate that its value is `true`.
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If needed, you can disable this behavior with the following setting:
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@ -97,6 +129,8 @@ CODER_OIDC_IGNORE_EMAIL_VERIFIED=true
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> **Note:** This will cause Coder to implicitly treat all OIDC emails as "verified".
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When a new user is created, the `preferred_username` claim becomes the username. If this claim is empty, the email address will be stripped of the domain, and become the username (e.g. `example@coder.com` becomes `example`).
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## SCIM (enterprise)
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Coder supports user provisioning and deprovisioning via SCIM 2.0 with header
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@ -107,3 +141,12 @@ auth key and supply it the Coder server.
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```console
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CODER_SCIM_API_KEY="your-api-key"
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```
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## TLS
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If your OpenID Connect provider requires client TLS certificates for authentication, you can configure them like so:
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```console
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CODER_TLS_CLIENT_CERT_FILE=/path/to/cert.pem
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CODER_TLS_CLIENT_KEY_FILE=/path/to/key.pem
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```
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