This section discusses the general requirements of OpenID IdPs, and provides a step-by-step procedure for setting up a OneLogin IdP.

DC/OS Enterprise can integrate with any identity provider (IdP) that uses OpenID Connect 1.0. The following procedure will take a Google IdP as an example and walk you through each step of the set up process.

Adding an OpenID Connect identity provider

You can add a Google OpenID Connect IdP in Google or DC/OS.

Configuring the IdP in Google

Visit the Credentials page of the Google Developer Console.
If you already have a project, click Select a Project, select the project, and click Open.

If you do not already have a project, click Create a project, type the name of your project in the Project Name box, opt in or out of email communications, accept the terms of service, and click Create.
In the Credentials dialog, select OAuth client ID.
Click Configure consent screen.
The next screen allows you to provide a range of information to be displayed to users when they provide their credentials. At a minimum, you must specify a name for the IdP in the Product name shown to users box.
Click Save.
Select Web application as the Application type.
Type a name for the IdP in the Name box.
Paste the URL of your cluster into the Authorized JavaScript origins box. Example: https://jp-ybwutd-elasticl-1r2iui8i0z9b7-1590150926.us-west-2.elb.amazonaws.com

If your cluster is fronted by a load balancer (recommended) the cluster URL will be the path to the load balancer. The cluster URL is the same as the path to the DC/OS UI and can be copied from your browser bar. Alternatively, you can log into the DC/OS CLI and type dcos config show core.dcos_url to get your cluster URL.
Paste your cluster URL into the Authorized redirect URIs field as well.
Paste /acs/api/v1/auth/oidc/callback to the end of your cluster URL in the Authorized redirect URIs field. Example: https://jp-ybwutd-elasticl-1r2iui8i0z9b7-1590150926.us-west-2.elb.amazonaws.com/acs/api/v1/auth/oidc/callback
Click Create.
Copy and paste the client ID and client secret values to a text file.

Configuring the IdP in DC/OS

Log into the DC/OS UI as a user with the dcos:superuser permission.
Open the Settings -> Identity Providers tab.
Click the + icon in the top right.
Click OpenID Connect.
Type a name for your IdP in the Provider ID field. This name will be passed in a URL, so make sure it contains only lowercase alphanumeric and - characters. Example: google-idp.
Type a human-readable name for your IdP in the Description field. Example, Google.
Paste the following into the Issuer field: https://accounts.google.com.
Paste your cluster URL into the Base URI field. Please see the previous section for more information on obtaining this value.
Paste the client ID value from Google into the Client ID field.
Paste the client secret value from Google into the Client Secret field.

Figure 1. Google IdP configuration
Click Add Provider.
You should now see your new IdP listed in the DC/OS UI.

Verifying the IdP

About verifying the IdP

You can use either of the following to verify that you have set up your IdP correctly.

Using the DC/OS UI
Using the DC/OS CLI

Using the DC/OS GUI

Sign out of the DC/OS GUI.
You should see a new button on your login dialog that reads LOGIN WITH GOOGLE.
Click the new button.
You will be redirected to Google.
Click to allow DC/OS access to your Google account information.
You should see an Access Denied message from DC/OS. This signifies that the logon was successful, the user account has been added to DC/OS, but the new user has no permissions and therefore cannot view anything in the DC/OS UI.
Click LOG OUT.
Log back in as a user with the dcos:superuser permission.
Open the Organization -> Users tab.
You should see your new user listed there.
Assign this user the appropriate permissions.

Using the DC/OS CLI

Prerequisite: DC/OS CLI installed.

Use the following command to log in as your new user.

dcos auth login --provider=google-idp --username=<user-email> --password=<secret-password>

The CLI should return a message similar to the following.

Please go to the following link in your browser:

 https://eanicich-elasticl-c3kpgqk7jdft-820516824.us-west-2.elb.amazonaws.com/acs/api/v1/auth/login?oidc-provider=google-idp&target=dcos:authenticationresponse:html

Copy the path and paste it into your browser.
You should see a message similar to the following.

Figure 2. CLI IdP auth token
Click Copy to clipboard.
Return to your terminal prompt and paste in the authentication token value.
You should receive the following message.
```
Login successful!
```

Configuring an OpenID identity provider