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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.

Pre-requisites

To integrate your Identity Provider (IDP) with Jenkins, you need the following items:

  • Jenkins should be installed and configured.
  • Jenkins Server is https enabled (optional).
  • Admin credentials are set up in Jenkins.

Download And Installation



  • Login to your Jenkins Admin Account.
  • 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
  • Search for Miniorange saml in the available tab.
  • SSO SAML Jenkins single sign onupload plugin, Jenkins SAML SSO
  • Download and install with a restart.
  • SSO SAML Jenkins single sign on install plugins, Jenkins SAML SSO

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.
        • Navigate to the Apps tab in the left menu and click on Web and mobile apps.
        • Google Apps SSO Login  Add SAML app
      Single Sign On using Google Apps/G-Suite, Google Apps/G-Suite SSO Login  Add a SAML app

        • Click on the Add App button, then in the dropdown select Add Custom SAML app tab to create a new saml app.
        • Google Apps SSO Login Setup own custom app
        • Enter details for your custom SAML app and click on Continue button.
        • Google Apps SSO Login, Setup own custom app1
      Single Sign On using Google Apps/G-Suite, Google Apps/G-Suite SSO Login  IDP Information

        • Click on Download Metadata button. This will be used for configuring your Service Provider.
        • You can also copy G Suite details like SSO URL, entity ID and Certificate to configure the Service Provider manually and then click on Continue button.
        • Google Apps SSO Login, SAML custom app Basic Information
      Single Sign On using Google Apps/G-Suite, Google Apps/G-Suite SSO Login  Service Provider Details

        • Enter details from the Service Provider Metadata tab in the SAML SP plugin.
        • ACS URL Copy and paste the ACS URL from the plugin.
          Entity ID Copy and paste the SP Entity ID/ Issuer from the plugin.
          Signed Response Check Signed Response
          Name ID Format EMAIL
        • Click on Continue button.
        •  Google Apps SSO Login, Service provider details
      Single Sign On into Google Apps/G-Suite, Google Apps/G-Suite SSO Login  Attribute Mapping

        • Click on Add Mapping button.
        •  Google Apps SSO Login, Attribute mapping details
        • Add and select user fields in Google Directory, then map them to Service Provider attributes and Click on Finish button.
        • Google Apps SSO Login, Attribute mapping details
      Single Sign On using Google Apps/G-Suite, Google Apps/G-Suite SSO Login  Turn on

        • Go to SAML Apps again and click on OFF for everyone .
        • Google Apps SSO Login, Turn-On go to SAML Apps
        • Then, 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.
        • Google Apps SSO Login, Turn-On go to SAML Apps 1

Step 2: Setup Jenkins as Service Provider

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

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
  • 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
  • sso saml jenkins single sign on User Profile Jenkins


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.
  • sso saml jenkins single sign on Advanced Configuration Jenkins


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

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
  • 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
  • sso saml jenkins single sign on User Profile Jenkins


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.
  • sso saml jenkins single sign on Advanced Configuration Jenkins





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