the-littlest-jupyterhub/docs/howto/auth/github.md

(howto-auth-github)=

Authenticate using GitHub Usernames

The GitHub Authenticator lets users log into your JupyterHub using their GitHub user ID / password. To do so, you'll first need to register an application with GitHub, and then provide information about this application to your tljh configuration.

:::{note} You'll need a GitHub account in order to complete these steps. :::

Step 1: Create a GitHub application

1. Go to the GitHub OAuth app creation page.

   • Application name: Choose a descriptive application name (e.g. tljh)

   • Homepage URL: Use the IP address or URL of your JupyterHub. e.g. http(s)://<my-tljh-url>`.

   • Application description: Use any description that you like.

   • Authorization callback URL: Insert text with the following form:

     http(s)://<my-tljh-ip-address>/hub/oauth_callback
     

   • When you're done filling in the page, it should look something like this:

     :alt: Create a GitHub OAuth application
     

2. Click "Register application". You'll be taken to a page with the registered application details.

3. Copy the Client ID and Client Secret from the application details page. You will use these later to configure your JupyterHub authenticator.

   :alt: Your client ID and secret
   

:::{important} If you are using a virtual machine from a cloud provider and stop the VM, then when you re-start the VM, the provider will likely assign a new public IP address to it. In this case, you must update your GitHub application information with the new IP address. :::

Configure your JupyterHub to use the GitHub Oauthenticator

We'll use the tljh-config tool to configure your JupyterHub's authentication. For more information on tljh-config, see {ref}topic/tljh-config.

1. Log in as an administrator account to your JupyterHub.

2. Open a terminal window.

   :alt: New terminal button.
   

3. Configure the GitHub OAuthenticator to use your client ID, client secret and callback URL with the following commands:

   sudo tljh-config set auth.GitHubOAuthenticator.client_id '<my-tljh-client-id>'
   

   sudo tljh-config set auth.GitHubOAuthenticator.client_secret '<my-tljh-client-secret>'
   

   sudo tljh-config set auth.GitHubOAuthenticator.oauth_callback_url 'http(s)://<my-tljh-ip-address>/hub/oauth_callback'
   

4. Tell your JupyterHub to use the GitHub OAuthenticator for authentication:

   sudo tljh-config set auth.type oauthenticator.github.GitHubOAuthenticator
   

5. Restart your JupyterHub so that new users see these changes:

   sudo tljh-config reload
   

Confirm that the new authenticator works

1. Open an incognito window in your browser (do not log out until you confirm that the new authentication method works!)

2. Go to your JupyterHub URL.

3. You should see a GitHub login button like below:

   :alt: The GitHub authenticator login button.
   

4. After you log in with your GitHub credentials, you should be directed to the Jupyter interface used in this JupyterHub.

5. If this does not work you can revert back to the default JupyterHub authenticator by following the steps in {ref}howto/auth/firstuse.