# Enable SSO and Granular Access Control For A Header-Based Web App with Auth0

# Preview

In this tutorial, we will use the DAB to enable SSO and granular access control for a header-based web App. The IdP we will use is Auth0. We will use DAB's side deployment mode, which means DAB and this app are running on the same server.

  • The application will run on localhost:3001.
  • The DAB will run on localhost:9772, which means the traffic to the app will reach DAB (running on port 9772) first and then be proxied to the application (running on port 3001).
  • We will provide the docker images for the DAB and this header-based application.

# Part I: Auth0 Configuration

You will need to register an OIDC application in Auth0 management portal and get the following 4 values for this application:

  • Issuer
  • Audience
  • Client ID
  • Client Secret

These values will later be used to set up Datawiza Access Broker in Datawiza Cloud Management Console. Please follow IdP Configuration Guide: Auth0 instructions on how to get those keys/values.

# Part II: Create Application on Datawiza Cloud Management Console (DCMC)

You need to create an application and generate a keypair of (PROVISIONING_KEY, PROVISIONING_SECRET) for this app on the DCMC.

Please follow Step2 : Datawiza Cloud Management Console to configure.

For Auth0 specific, we need to configure the Issuer like https://datawiza-test.us.auth0.com/ when we configure the Auth0 IdP in DCMC: Auth0 DCMC Config

# Part III: Run DAB With a Header-Based Application

You can use either Docker or Kubernetes to run DAB. The following is an example docker-compose.yml file. You may need to login to our container registry to download the images of DAB and the header-based app. See Step3 : Configure DAB and SSO Integration for more details or Deploy DAB with Kubernetes for Kubernetes-specific instructions.

version: '3'

services:
  datawiza-access-broker:
    image: registry.gitlab.com/datawiza/access-broker
    container_name: datawiza-access-broker
    restart: always
    ports:
      - "9772:9772"
    environment:
      PROVISIONING_KEY: #############################
      PROVISIONING_SECRET: #############################

  header-based-app:
    image: registry.gitlab.com/datawiza/header-based-app
    container_name: ab-demo-header-app
    restart: always
    ports:
      - "3001:3001"

After executing docker-compose -f docker-compose.yml up, the header-based app should have SSO enabled with Auth0. Open a browser and type in http://localhost:9772/. You should see the Auth0 login page as follows. Note that if you are already logged into Auth0 in your browser, you may need to logout to see the login page. DAB with Auth0

# Part IV: Pass User Attributes to the Header-Based App

DAB gets user attributes from IdP and can pass the user attributes to the application via header or cookie.

Please follow the instructions of Step4 : Pass User Attributes to pass the user attributes to the header-based app, which is expecting:

  • email
  • firstname
  • lastname
  • groups

Because auth0 default Authorization Core doesn't support group as of 11/13/2020, we set role instead of group here for test. You can also follow the instructions of Update user info by API(Optional) to add family name and given name to test user. Auth0 with DCMC attributes After successfully configuring the user attributes, you should see the green check sign for each of the user attributes as follows. Auth0 with DCMC attributes

# Part V: Achieve Granular Access Control

You can configure access control to an application based on user's attributes (e.g., groups, department) and other metadata of a request (e.g., URL, IP, http method, access time).

Please reference Step5 : Achieve Granular Access Control for detailed instructions on how to set up access rules. You can practice the rule configuration using the following example.

# A Rule Example

  1. Create a user in Auth0, put it in hr role, and then assign this person to your application on Auth0.

  2. Create the following two rules:

  • hr path can only be accessed by hr role.
  • sales path can only be accessed by sales role.
  1. Verify that the user you created can only access hr page in the header-based app, but cannot access sales page. Trying to access the header-based application on localhost:9772 in your browser, you should get something similar to the following screenshots.
    http://localhost:9772/hr: Auth0 Example http://localhost:9772/sales: Auth0 Example Access Forbidden