SAML Single Sign On (SSO) into Jenkins using Jboss Keycloak as IDP


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

Step 1: Setup Jboss Keycloak as Identity Provider

Follow the steps below to configure Jboss Keycloak as an Identity Provider.You can use 2 ways to configure the JBoss Keycloak as IDP.

Single Sign On (SSO) using Keycloak Identity Provider,Keycloak SSO Login Method 1: Upload SP Metadata

  • In your Keycloak admin console, select the realm that you want to use.
  • Click on the Clients from the left nav bar.
  • Create a new client/application.
  • Click Import File button.
  • Single Sign On (SSO) using Keycloak Identity Provider,Keycloak SSO Login, Add Client
  • Upload plugin metadata. (To obtain it, go to the Service Provider Info tab of the plugin, and click on Download Metadata button.
    Now, click on Select file from the Add Client tab of keycloak and browse the downloaded metadata file.)
  • Click on Save.
  • Procced to set Mappers .

Single Sign On (SSO) using Keycloak Identity Provider,Keycloak SSO Login Method 2: Manual Configuration

  • In your Keycloak admin console, select the realm that you want to use.
  • Click on the Clients from the left nav bar.
  • Create a new client/application.
  • Configure the following:
    Client ID The SP-EntityID / Issuer from the step 1 of the plugin under Configure IDP tab.
    Name Provide a name for this client
    Description Provide a description
    Enabled ON
    Consent Required OFF
    Client Protocol SAML
    Include AuthnStatement ON
    Sign Documents ON
    Optimize Redirect signing key lookup OFF
    Sign Assertions ON
    Signature Algorithm RSA_SHA256
    Encrypt Assertion OFF
    Client Signature Required OFF
    Canonicalization Method EXCLUSIVE
    Force Name ID Format ON
    Name ID Format Email
    Root URL Leave empty or Base URL of Service Provider
    Valid Redirect URIs The ACS (Assertion Consumer Service) URL from the step 1 of the plugin under configure IDP tab.
  • Under Fine Grain SAML Endpoint Configuration, configure the following:

  • Assertion Consumer Service POST Binding URL The ACS (Assertion Consumer Service) URL from the step 1 of the plugin under Configure IDP tab.
    Logout Service Redirect Binding URL The Single Logout URL from the step 1 of the plugin under Configure IDP tab.
  • Click on Save.
  • Single Sign On (SSO) using Keycloak Identity Provider,Keycloak SSO Login, Configure Client

 Add Mappers

  • Add the following attributes in the Mappers tab.
  • Click on Add Builtin and add the following option.
  • Single Sign On (SSO) using Keycloak Identity Provider,Keycloak SSO Login, Add Mappers For SP

Single Sign On (SSO) using Keycloak Identity Provider,Keycloak SSO Login Download IDP Metadata

  • Go to Realm Settings, click on SAML 2.0 Identity Provider Metadata endpoint link provided under Genaral tab.
  • Download it and keep it handy. It will be used to configure the plugin.

Step 2: Download and install the plugin in Jenkins.

    To Setup the miniorange saml SP plugin follow the path:

  • Login to your Jenkins Admin Account.
  • sso saml jenkins single sign on manage jenkins-1
  • Go to Manage Jenkins option from the left pane, and open Manage Plugins tab.
  •  sso saml jenkins single sign onmanage plugins-2
  • Go to the advanced tab and upload the hpi file.
  •  sso saml jenkins single sign onupload plugin-3
  • Follow the instructions shown on screen and restart the Jenkins.
  • sso saml jenkins single sign on install plugins-4

Step 3: Activate the plugin

  • Open Manage Jenkins and select Configure Global Security.
  • sso saml jenkins single sign on configure security-5
  • Set the Security Realm as miniorange SAML 2.0.
  • sso saml jenkins single sign on security realm-6
  • Make sure that Enable Security checkbox is checked.
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 -6

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
  • sso saml jenkins single sign on User Profile Jenkins


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


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
  • 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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