INTEGRATE AUTH0 SSO AUTHENTICATION IN JUPYTERHUB Z2JH HELM CHART

WELCOME

AUTH0 AUTHENTICATION

You’ve arrived to the right place if you’re wondering “How to integrate Auth0 SSO authentication in the JupyterHub Z2gh Helm chart.”

Let’s first go deep dive into “What is Auth0?”

AUTH0:

An easy to implement, adaptable authentication and authorization platform.

Auth0 is a flexible, drop-in solution to add authentication and authorization services to your applications. Your team and organization can avoid the cost, time, and risk that come with building your own solution to authenticate and authorize users.

Take a look at just a few of Auth0’s use cases:

• You built an awesome app and you want to add user authentication and authorization. Your users should be able to log in either with a username/password or with their social accounts (such as Facebook or Twitter). You want to retrieve the user’s profile after the login so you can customize the UI and apply your authorization policies.
• You built an API and you want to secure it with OAuth 2.0.
• You have more than one app, and you want to implement Single Sign-on (SSO).
• You built a JavaScript front-end app and a mobile app, and you want them both to securely access your API.
• You have a web app that needs to authenticate users using Security Assertion Markup Language (SAML).
• You believe passwords are broken and you want your users to log in with one-time codes delivered by email or SMS.
• If one of your user’s email addresses is compromised in some site’s public data breach, you want to be notified, and you want to notify the users and/or block them from logging in to your app until they reset their password.
• You want to act proactively to block suspicious IP addresses if they make consecutive failed login attempts, in order to avoid DDoS attacks.
• You are part of a large organization that wants to federate your existing enterprise directory service to allow employees to log in to the various internal and third-party applications using their existing enterprise credentials.
• You don’t want (or you don’t know how) to implement your own user management solution. Password resets, creating, provisioning, blocking, and deleting users, and the UI to manage all these. You just want to focus on your app.
• You want to enforce multi-factor authentication (MFA) when your users want to access sensitive data.
• You are looking for an identity solution that will help you stay on top of the constantly growing compliance requirements of SOC2, GDPR, PCI DSS, HIPAA, and others.
• You want to monitor users on your site or application. You plan on using this data to create funnels, measure user retention, and improve your sign-up flow.

Now it’s time to move to the Practical part..

INTEGRATING AUTH0 WITH JUPYTERHUB Z2GH HELM CHART:

On top of the EKS Cluster, I have already deployed JupyterHub using this helm chart: https://z2jh.jupyter.org. On top of any k8s cluster, assuming you also deployed the jupyterhub using this helm chart.

If not, Refer to this link to deploy jupyterhub: JupyterHub Helm

Steps to integrate:

1. Log in to your Auth0 account and go to the Applications page.
2. Click on the “+ Create Application” button.
3. Select “Regular Web Applications” and click on the “Create” button.
4. Enter a name for your application and click on the “Create” button.
5. In the “Settings” tab of your application, configure the following options:

• “Allowed Callback URLs”: Add the URL of your JupyterHub deployment followed by “/hub/oauth_callback”. For example: https://example.com/hub/oauth_callback.
• “Allowed Logout URLs”: Add the URL of your JupyterHub deployment. For example: https://example.com.
• “Application Type”: Select “Single Page Web Applications”.
• “Token Endpoint Authentication Method”: Select “POST”.

6. In the “APIs” tab of your application, click on the “+ Create API” button.

7. Enter a name for your API and click on the “Create” button.

8. In the “Settings” tab of your API, configure the following options:

• “Identifier”: Enter the URL of your JupyterHub deployment followed by “/hub/api”. For example: https://example.com/hub/api.
• “Signing Algorithm”: Select “RS256”.

9. Go back to the “Settings” tab of your application and copy the “Client ID”, “Client Secret” and “Domain”.

Z2gh Helm Chart Steps:

1. Add the below code in “Values.yaml” file of deployed JpyterHub using z2gh Helm Chart:

Auth0 is a commercial provider of identity management.

hub:
  config:
    Auth0OAuthenticator:
      client_id: client-id-from-auth0-here
      client_secret: client-secret-from-auth0-here
      oauth_callback_url: https://your-jupyterhub-domain/hub/oauth_callback
      scope:
        - openid
        - email
      auth0_subdomain: prod-8ua-1yy9
    Authenticator:
      admin_users:
        - devops@example.com
      auto_login: true
    JupyterHub:
      authenticator_class: auth0

Update “client_id”, “client_secret”, “your-jupyterhub-domain”.

Below is an example on how you can configure the GenericOAuthenticator to authenticate against Auth0.

hub:
  config:
    GenericOAuthenticator:
      client_id: your-client-id
      client_secret: your-client-secret
      oauth_callback_url: https://your-jupyterhub-domain/hub/oauth_callback
      authorize_url: https://your-domain.us.auth0.com/authorize
      token_url: https://your-domain.us.auth0.com/oauth/token
      userdata_url: https://your-domain.us.auth0.com/userinfo
      scope:
        - openid
        - name
        - profile
        - email
      username_key: name
    JupyterHub:
      authenticator_class: generic-oauth

Update “client_id”, “client_secret”, “your-jupyterhub-domain” and “your-domain”.

2. Run the below command to upgrade the helm chart:

helm upgrade -n "your-namespace" "your-release-name" "chart" --values values.yaml

That’s it; the auth0 login should now appear on your Jupyter Login screen.

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