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Gitlab OAuth & OpenID connect Single Sign-On (SSO) | Gitlab SSO Login

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WordPress OAuth & OpenID Connect Single Sign-On (SSO) plugin enables secure login into WordPress using Gitlab as OAuth and OpenID Connect provider. It supports advanced Single Sign-On (SSO) features such as user profile Attribute mapping, Role mapping, etc. Here we will go through a guide to configure SSO between WordPress and Gitlab. By the end of this guide, users should be able to login to WordPress from Gitlab. To know more about other features we provide in WP OAuth Single Sign-On ( OAuth & OpenID Connect Client ) plugin, you can click here.

Pre-requisites : Download And Installation

Log into your WordPress instance as an admin.
Go to the WordPress Dashboard -> Plugins and click on Add New.
Search for a WordPress OAuth Single Sign-On (SSO) plugin and click on Install Now.
Once installed click on Activate.

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WordPress OAuth & OpenID Single Sign-On (SSO)

Steps to configure Gitlab Single Sign-On (SSO) Login into WordPress

1. Setup Gitlab as OAuth Provider

First of all, go to https://gitlab.com/profile and log into your gitlab developer account.
Go to Applications tab to add a new application.

Gitlab Single Sign-On (SSO) OAuth - Add app

Enter the app name and enter the Redirect/Callback URL which you will get from the OAuth Single Sign-On (SSO) plugin under the Callback URL section.

Gitlab Single Sign-On (SSO) OAuth - Add Redirect URL

Scroll down to the Scopes section and select the scopes shown in the below figure. Click on save application button.

Gitlab Single Sign-On (SSO) OAuth - Add scope

Copy the Application ID and Secret and save it under the Client ID and Client Secret in your WordPress OAuth Single Sign-On (SSO) Plugin Configuration.

Gitlab Single Sign-On (SSO) OAuth - Copy client credentials

You have successfully configured Gitlab as OAuth Provider for achieving Gitlab Single Sign-On (SSO) with WordPress for user authentication.

Go to Configure OAuth tab and click Add New Application to add a new client application into your website.

Gitlab Single Sign-On (SSO) OAuth - Add new application

Choose your Application from the list of OAuth / OpenID Connect Providers, Here Gitlab.

Gitlab Single Sign-On (SSO) OAuth - Select Application

Copy the Callback URL to be used in OAuth Provider Configuration. Click Next.

Gitlab Single Sign-On (SSO) OAuth - Callback URL

Please refer the below table for configuring the scope & endpoints in the plugin.

Scope	openid profile email
Authorization Endpoint	https://gitlab.com/oauth/authorize
Access Token Endpoint	https://gitlab.com/oauth/token
Get User Info Endpoint:	https://gitlab.com/api/v4/user

Gitlab Single Sign-On (SSO) OAuth - Add App name, TenantID

Enter the Client Credentials like Client ID & Client Secret as shown in the setup dialogue box. Enter the scope value as openid profile email. Click Next.

Gitlab Single Sign-On (SSO) OAuth - Client ID & Client Secret

Click on Finish to save the configuration.

Gitlab Single Sign-On (SSO) OAuth - Finish configuration

You have successfully configured WordPress as OAuth Client for achieving user authentication with Gitlab Single Sign-On (SSO) login into your WordPress Site.

3. User Attribute Mapping

User Attribute Mapping is mandatory for enabling users to successfully Single Sign-On into WordPress using Gitlab SSO. We will be setting up user profile attributes for WordPress using the below settings.

Finding user attributes

Go to Configure OAuth tab. Scroll down and click on Test Configuration.

Gitlab Single Sign-On (SSO) - test configuration

You will see all the values returned by your OAuth Provider to WordPress in a table. If you don't see value for First Name, Last Name, Email or Username, make the required settings in your OAuth Provider to return this information.
Once you see all the values in Test Configuration, go to Attribute / Role Mapping tab, select attributes from Username dropdown and click on Save.

Gitlab Single Sign-On (SSO) - attribute/role mapping

4. Sign In Settings

The settings in Single Sign-On (SSO) Settings tab define the user experience for Single Sign-On (SSO). To add a Gitlab login widget on your WordPress page, you need to follow the below steps.

Go to WordPress Left Panel > Appearances > Widgets.
Select miniOrange OAuth. Drag and drop to your favourite location and save.

Gitlab Single Sign-on (SSO) - WordPress create-newclient login button setting

Go to WordPress Left Panel > Appearances > Widgets.
Select miniOrange OAuth. Drag and drop to your favourite location and save.

Open your WordPress page and you can see the Gitlab SSO login button there. You can test the Gitlab Single Sign-On (SSO) now.

In this Guide, you have successfully configured Gitlab Single Sign-On (SSO) by configuring Gitlab as OAuth Provider and WordPress as OAuth Client using our WP OAuth Single Sign-On ( OAuth / OpenID Connect Client ) plugin.This solution ensures that you are ready to roll out secure access to your WordPress site using Gitlab login credentials within minutes.

Additional Resources

Mail us on oauthsupport@xecurify.com for quick guidance(via email/meeting) on your requirement and our team will help you to select the best suitable solution/plan as per your requirement.