Frontegg Endpoint SSO (OpenID Connect)
This guide refers to using SSO to authenticate access to your endpoints. You cannot use these instructions to set up SSO for logging into your ngrok account in the dashboard.
To secure access to ngrok with Frontegg Single Sign-On (SSO) using OpenID Connect:
This article details how to configure Frontegg as the primary Identity Provider (IDP) for ngrok endpoints. By integrating Frontegg SSO with ngrok, you can:
- Restrict access to ngrok endpoints only to users authenticated via Frontegg
- Use Frontegg security policies and MFA authenticators.
- Use Frontegg's Dashboard to facilitate access to ngrok apps.
Supported Features
The ngrok integration with Frontegg supports:
- SP-Initiated SSO: In this mode, users access ngrok endpoints and are redirected to Frontegg for authentication.
Requirements
To configure an ngrok edge with Frontegg, you must have:
- A Frontegg account with administrative rights to create apps
- An ngrok Enterprise Account with an authtoken or admin access to configure edges with OpenID Connect.
Configuration Steps
To integrate ngrok with Frontegg SSO, you will need to:
- Configure Frontegg with the ngrok app
- Configure ngrok with the SSO settings provided by Frontegg
Step 1: Configure Frontegg
Add the ngrok App in Frontegg
-
Access the Frontegg Portal, and sign in using your Frontegg administrator account.
-
On the left menu, click the environment you want to integrate with ngrok. In this example click the Development environment.
-
On the left menu, click Authentication, click Login method, enter the URL
https://idp.ngrok.com/oauth2/callback
under the Hosted login field, and then click Save. -
On the left menu, click Env settings, and copy the value of both the Client ID and the API key fields.
-
Click the Domains tab, and copy the value of the Domain name.
Grant access to Frontegg users
Create a Frontegg user:
-
On the left menu of the Frontegg Portal, click your environment, click Backoffice, click Accounts, and then click Add New.
-
On the Add new account popup, enter a name for the account,
ngrok.com
in the Domain field, and then click Save. -
On the left menu, click Backoffice, click Users, and then click Add New.
-
On the Add new user popup, enter a name, email, select the account you have created, and then click Save. Note: by default, the user is assigned the Admin role.
Step 2: Configure ngrok
ngrok can leverage Frontegg SSO in two ways:
- From the ngrok CLI (using the
--oidc
parameter) - From the ngrok dashboard
Option 1: ngrok CLI
Note: For this tutorial, we assume you have an app running locally (i.e., on localhost:3000) with the ngrok client installed.
-
Launch a terminal
-
Enter the following command to launch an ngrok tunnel with Frontegg SSO:
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Note: Replace the following with the values:
- FRONTEGG_OAUTH_URL: Your Frontegg Domain name URL (i.e.
https://app-123456.frontegg.com
). - FRONTEGG_CLIENT_ID: The client id you copied from Frontegg.
- FRONTEGG_CLIENT_SECRET: The API key you copied from Frontegg.
Alternatively, add the
--url YOUR_DOMAIN
argument to get your custom URL, replacingYOUR_DOMAIN
with your URL of preference. - FRONTEGG_OAUTH_URL: Your Frontegg Domain name URL (i.e.
-
Copy the URL available next to Forwarding (for example,
https://frontegg-sso-test.ngrok.app
). -
Skip to Step 3
Option 2: ngrok Edge
To configure an edge with Frontegg:
-
Access the ngrok Dashboard and sign in using your ngrok account.
-
On the left menu, click Universal Gateway and then click Edges.
-
If you don't have an edge already set to add Frontegg SSO, create a test edge:
- Click + New Edge.
- Click Create HTTPS Edge.
- Click the pencil icon next to "no description", enter
Frontegg SSO OIDC
as the edge name and click Save.
-
On the edge settings menu, click OIDC.
-
Click Begin setup and enter the following values into the fields:
- Issuer URL: Your Frontegg Domain name URL (i.e.
https://app-123456.frontegg.com
). - Client ID: The client id you copied from Frontegg.
- Client Secret: The API key you copied from Frontegg.
- Issuer URL: Your Frontegg Domain name URL (i.e.
-
Click Save at the top, and then click the left arrow to go back to the Edges page.
-
Launch a tunnel connected to your Frontegg edge:
For this step, we assume you have an app running locally (i.e. on localhost:3000) with the ngrok client installed.
-
Click Start a tunnel.
-
Click the copy icon next to the tunnel command.
-
Launch a tunnel:
- Launch a terminal.
- Paste the command but replace
http://localhost:80
with your localhost app address (i.e.,http://localhost:3000
). - Click Enter and an ngrok tunnel associated with your edge configuration will launch.
-
To confirm that the tunnel is connected to your edge:
- Return to the ngrok dashboard
- Close the Start a tunnel and the Tunnel group tabs
- Refresh the test edge page. Under traffic, you will see the message You have 1 tunnel online. Start additional tunnels to begin load balancing.
-
In the test edge, copy the endpoint URL (you use this URL to test the Frontegg Authentication).
Step 3: Test the integration
-
In your browser, launch an incognito window.
-
Access your ngrok tunnel (i.e.,
https://frontegg-sso-test.ngrok.app
). Use the copied endpoint URL. -
You should be prompted to log in with your Frontegg credentials.
-
After logging in, you should be able to see your web app.