SAML Single Sign On (SSO) into Jenkins using Google Apps / G-Suite as IDP

Jenkins SAML SSO app gives the ability to enable SAML Single Sign-On (SSO) for Jenkins. Here we will go through a guide to configure Single Sign On (SSO) between Jenkins and Google Apps / G Suite. By the end of this guide, Google Apps / G Suite users should be able to log in and register to Jenkins.

Step 1: Setup Google Apps/G Suite as Identity Provider

Follow the following steps to set up Google Apps / G Suite as an Identity Provider

Single Sign On using Google Apps/G-Suite, Google Apps/G-Suite SSO Login

Login as Administrator

Go to https://admin.google.com and login with your G Suite administrator account.
Go to Apps from the left menu and click SAML Apps.

Add a SAML app

Click on the “+” button at the bottom right corner to create a new SAML app.
Select button SETUP MY OWN CUSTOM APP

IDP Information

Copy G Suite details from Option 1 of Step 2 and download the Certificate to configure the add-on manually.
OR You can also download the IDP metadata from Option 2 of Step 2, and then click Next.
Fill up the Basic Information for custom App such as Application Name( Eg. SAML App) and Description as per your choice.
Click Next.

Service Provider Details

Enter details from the SP Info tab in the add-on as given below.

Information to be entered in G Suite	Information to copy from the add-on in SP Info tab
ACS URL	ACS URL
Entity ID	SP Entity ID/ Issuer
Signed Response	✓
Name ID Format	EMAIL

Click Next.

Single Sign On into Google Apps/G-Suite, Google Apps/G-Suite SSO Login

Attribute Mapping

Click on Add New Mapping
Add mapping for first name and last name
Click on Finish

Turn on

By Default SAML Apps are turned off for everyone.
Select Edit Service option.

SAML Single Sign On (SSO) using Google Apps/G-Suite Identity Provider,Google Apps/G-Suite SSO Login, Edit Service

Change the setting to select ON for everyone to activate SSO.
Note: All the users will be asked to SSO to access G Suite Apps and they will not be able to login normally using a username and password.

SAML Single Sign On (SSO) using Google Apps/G-Suite Identity Provider,Google Apps/G-Suite SSO Login, Assign App to Everyone

Step 2: Download and install the plugin in Jenkins

SSO SAML Jenkins single sign on manage jenkins, Jenkins SAML SSO

Go to Manage Jenkins option from the left pane, and open Manage Plugins tab.

SSO SAML Jenkins single sign onmanage plugins, Jenkins SAML SSO

Go to the advanced tab and upload the hpi file.

SSO SAML Jenkins single sign onupload plugin, Jenkins SAML SSO

Follow the instructions shown on screen and restart the Jenkins.

SSO SAML Jenkins single sign on install plugins, Jenkins SAML SSO

Step 3: Activate the plugin

Open Manage Jenkins and select Configure Global Security.

SSO SAML Jenkins single sign on configure security, Jenkins SAML SSO

Set the Security Realm as miniorange SAML 2.0.

SSO SAML Jenkins single sign on security realm, Jenkins SAML SSO

Make sure that Enable Security checkbox is checked.

Free
Premium

Free

SP Configurations
You can configure SP settings in IDP in 2 ways:

By uploading Metadata XML file
Manual Configuration

A. By uploading Metadata XML file

Click on Service Provider Metadata in SP Configuration section.
Metadata xml file will be downloaded.
Use this file to setup IDP.

B. Manual Configuration

To Configure SP Settings at IDP copy below URL and paste in respective fields at IDP end.

SP Entity ID: https://your-jenkins-domain
Audience URI: https://your-jenkins-domain
ACS URL: https://your-jenkins-domain/securityRealm/moSamlAuth

sso saml jenkins single sign on SP Configuration Jenkins

IDP Configuration

To Configure IDP enter the following details and press apply and save the settings.

IDP Entity ID
Single Sign On URL
Name ID Format
X.509 Certificate

sso saml jenkins single sign on idp metadata

User Profile Configuration

Select Username or Email for Login Jenkins account by:
Enter the attribute name from IDP which corresponds to Username in Username Attribute textbox.
Enter the attribute name from IDP which corresponds to Email in Email Attribute textbox.
Select the checkbox Apply regex Pattern to the UserNameif the userID returned from SAML is not same as username of Jenkins.
Enter the regular expression in REGEX Pattern textbox. It will be applied on user ID from SAML Response and will convert it into the username same as Jenkins. For example, you can use regular expression ^.*?(?=@) to extract demo from username demo@example.com

Advanced Configurations

Select the Do you want to create a new users? to allow user creation through SAML.

sso saml jenkins single sign on Advanced Configuration Jenkins

Premium

SP Configurations
You can configure SP settings in IDP in 2 ways:

By uploading Metadata XML file
Manual Configuration

A. By uploading Metadata XML file

Click on Service Provider Metadata in SP Configuration section.
Metadata xml file will be downloaded.
Use this file to setup IDP.

B. Manual Configuration

To Configure SP Settings at IDP copy below URL and paste in respective fields at IDP end.

SP Entity ID: https://your-jenkins-domain
Audience URI: https://your-jenkins-domain
ACS URL: https://your-jenkins-domain/securityRealm/moSamlAuth

IDP Configuration

To Configure IDP enter the following details and press apply and save the settings.

IDP Entity ID
Single Sign On URL
Single Logout URL
Name ID Format
X.509 Certificate

sso saml jenkins single sign on idp Configuration Jenkins

User Profile Configuration

Select Username or Email for Login Jenkins account by:
Enter the attribute name from IDP which corresponds to Username in Username Attribute textbox.
Enter the attribute name from IDP which corresponds to Email in Email Attribute textbox.
Enter the attribute name from IDP which corresponds to full name in Full Name Attribute.
Select the checkbox Apply regex Pattern to the UserNameif the userID returned from SAML is not same as username of Jenkins.
Enter the regular expression in REGEX Pattern textbox. It will be applied on user ID from SAML Response and will convert it into the username same as Jenkins. For example, you can use regular expression ^.*?(?=@) to extract demo from username demo@example.com

Advanced Configurations

Select the Do you want signed requests? to send signed login and logout requests. Requests will be signed using public certificate from option Download SP Certificate in SP Configuration section.
Select the Do you want to create a new users? to allow user creation through SAML.
Select the Do you want to update Attributes of Existing Users? to update attributes of existing user's each time they sign in Jenkins through SSO.
To Add custom AttributeS select Add option.

Set Attribute Name as the one set in IDP eg. lname
Set display name in user proprties as one you want it appear in jenkins user's config.xml file and in user's configure tab.

To assign default group to users created through SSO add group name in Assign group to new Users option. Multiple groups can be added using ,(Comma) separater
If Do you want to disable Default login option is enabled, any unauthenticated user trying to access the default Jenkins login page will get redirected to the IDP login page for authentication. After successful authentication, they will be redirected back to the Jenkins base URL.
Copy backdoor URL and save it for emergency.

Step 1: Setup Google Apps / G Suite as IdP
Step 2: Setup Jenkins as SP

If you are looking for anything which you cannot find, please drop us an email on info@xecurify.com

SAML Single Sign On (SSO) into Jenkins using Google Apps / G-Suite as IDP

Step 1: Setup Google Apps/G Suite as Identity Provider

Step 2: Download and install the plugin in Jenkins

Step 3: Activate the plugin

Free

Premium

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