pomerium/docs/guide/identity-providers.md
2019-01-17 00:08:36 -08:00

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Identity Providers This article describes how to connect pomerium to third-party identity providers / single-sign-on services. You will need to generate keys, copy these into your promerium settings, and enable the connection.

Identity Provider Configuration

This article describes how to configure pomerium to use a third-party identity service for single-sign-on.

There are a few configuration steps required for identity provider integration. Most providers support OpenID Connect which provides a standardized interface for authentication. In this guide we'll cover how to do the following for each identity provider:

  1. Establish a Redirect URL with the identity provider which is called after authentication.
  2. Generate a Client ID and Client Secret.
  3. Configure pomerium to use the Client ID and Client Secret keys.

Google

Log in to your Google account and go to the APIs & services. Navigate to Credentials using the left-hand menu.

API Manager Credentials

On the Credentials page, click Create credentials and choose OAuth Client ID.

Create New Credentials

On the Create Client ID page, select Web application. In the new fields that display, set the following parameters:

Field Description
Name The name of your web app
Authorized redirect URIs https://${redirect-url}/oauth2/callback

Web App Credentials Configuration

Click Create to proceed.

Your Client ID and Client Secret will be displayed:

OAuth Client ID and Secret

Set Client ID and Client Secret in Pomerium's settings. Your environmental variables should look something like this.

REDIRECT_URL="https://sso-auth.corp.beyondperimeter.com/oauth2/callback"
IDP_PROVIDER="google"
IDP_PROVIDER_URL="https://accounts.google.com"
IDP_CLIENT_ID="yyyy.apps.googleusercontent.com"
IDP_CLIENT_SECRET="xxxxxx"

Okta

Log in to your Okta account and head to your Okta dashboard. Select Applications on the top menu. On the Applications page, click the Add Application button to create a new app.

Okta Applications Dashboard

On the Create New Application page, select the Web for your application.

Okta Create Application Select Platform

Next, provide the following information for your application settings:

Field Description
Name The name of your application.
Base URIs (optional) The domain(s) of your application.
Login redirect URIs https://${redirect-url}/oauth2/callback.
Group assignments (optional) The user groups that can sign in to this application.
Grant type allowed You must enable Refresh Token.

Okta Create Application Settings

Click Done to proceed. You'll be taken to the General page of your app.

Go to the General page of your app and scroll down to the Client Credentials section. This section contains the Client ID and Client Secret to be used in the next step. Okta Client ID and Secret

At this point, you will configure the integration from the Pomerium side. Your environmental variables should look something like this.

REDIRECT_URL="https://sso-auth.corp.beyondperimeter.com/oauth2/callback"
IDP_PROVIDER="okta"
IDP_PROVIDER_URL="https://dev-108295-admin.oktapreview.com/"
IDP_CLIENT_ID="0oairksnr0C0fEJ7l0h7"
IDP_CLIENT_SECRET="xxxxxx"

Azure

If you plan on allowing users to log in using a Microsoft Azure Active Directory account, either from your company or from external directories, you must register your application through the Microsoft Azure portal. If you don't have a Microsoft Azure account, you can signup for free.

You can access the Azure management portal from your Microsoft service, or visit https://portal.azure.com and sign in to Azure using the global administrator account used to create the Office 365 organization.

::: tip There is no way to create an application that integrates with Microsoft Azure AD without having your own Microsoft Azure AD instance. :::

If you have an Office 365 account, you can use the account's Azure AD instance instead of creating a new one. To find your Office 365 account's Azure AD instance:

  1. Sign in to Office 365.
  2. Navigate to the Office 365 Admin Center.
  3. Open the Admin centers menu drawer located in the left menu.
  4. Click on Azure AD.

This will bring you to the admin center of the Azure AD instance backing your Office 365 account.

Create a new application

Login to Microsoft Azure and choose Azure Active Directory from the sidebar.

Select Active Directory

Then under MANAGE, select App registrations.

Select App registrations

Then click on the + ADD button to add a new application.

Enter a name for the application, select Web app/API as the Application Type, and for Sign-on URL enter your application URL.

Create application form

Next you will need to create a key which will be used as the Client Secret in Pomeriunm's configuration settings. Click on Keys from the Settings menu.

Enter a name for the key and choose the desired duration.

::: tip If you choose an expiring key, make sure to record the expiration date in your calendar, as you will need to renew the key (get a new one) before that day in order to ensure users don't experience a service interruption. :::

Click on Save and the key will be displayed. Make sure to copy the value of this key before leaving this screen, otherwise you may need to create a new key. This value is used as the Client Secret.

Creating a Key

Next you need to ensure that the Pomerium's Redirect URL is listed in allowed reply URLs for the created application. Navigate to Azure Active Directory -> Apps registrations and select your app. Then click Settings -> Reply URLs and add Pomerium's redirect URL. For example, https://sso-auth.corp.beyondperimeter.com/oauth2/callback.

Add Reply URL

The final, and most unique step to Azure AD provider, is to take note of your specific endpoint. Navigate to Azure Active Directory -> Apps registrations and select your app. Application dashboard Click on Endpoints

Endpoint details

The OpenID Connect Metadata Document value will form the basis for Pomerium's Provider URL setting. For example, if your Azure OpenID Connect is https://login.microsoftonline.com/0303f438-3c5c-4190-9854-08d3eb31bd9f/v2.0/.well-known/openid-configuration your Pomerium Identity Provider URL would be https://login.microsoftonline.com/0303f438-3c5c-4190-9854-08d3eb31bd9f/v2.0.

Configure Pomerium

At this point, you will configure the integration from the Pomerium side. Your environmental variables should look something like:

# Azure
REDIRECT_URL="https://sso-auth.corp.beyondperimeter.com/oauth2/callback"
IDP_PROVIDER="azure"
IDP_PROVIDER_URL="https://login.microsoftonline.com/{REPLACE-ME-SEE-ABOVE}/v2.0"
IDP_CLIENT_ID="REPLACE-ME"
IDP_CLIENT_SECRET="REPLACE-ME"