SAML Single Sign On (SSO) into SonarQube using Auth0

SonarQube SAML plugin gives the ability to enable SAML Single Sign On for the SonarQube. Here we will go through a guide to configure SSO between SonarQube and Auth0. By the end of this guide, Auth0 users should be able to log in and register to the SonarQube Server.

Step 1: Setup Auth0 as Identity Provider

    miniorange img Prerequisites:

    Copy these values from the Service Provider Info tab of the SAML plugin.

    • SP Entity ID
    • ACS URL
    • Single Logout URL

    miniorange img Instructions:

  • Click onCreate Application.
    • Auth0 SSO-2
  • A new window will pop-up. Enter a name for the application and select Regular Web App. Click on CREATE button.
    • Auth0 SSO-3
  • Select the Addons tab.
    • Auth0 SSO-4
  • Enable SAML2 option in the addons. It will open up a Configuration window.
    • Auth0 SSO-5
  • Enter Application Callback URL, Audience, Recipient and other settings using SP entity ID and ACS URL copied from the plugin as shown below:
    • Auth0 SSO-6
  • Scroll down and click on Save.
    • Auth0 SSO-7
  • Go to the Usage tab and click on the Identity Provider Metadata download link. It will download the metadata XML file which you'll need for setting up the SAML plugin.
    • Auth0 SSO-8

Step 2: Configure SonarQube as Service Provider.

    miniorange img  Fetch the Identity Provider (IdP) Details

    • After configuring the IdP, get its metadata to configure SonarQube as a Service Provider(SP).
    • Copy the following details from the IdP metadata and paste them into the corresponding text fields in the SonarQube plugin.
        • 1. IdP Entity ID
        2. Login URL
        3. X.509 Certificate

    • Save all the details.
      • sonarqube saml single sign on (sso) plugin - idp_details

    miniorange img  Test Configuration

    • Once you have filled all the IdP details, click on the Test Configuration button.
    • It will take you to the IdP login page. Enter your IdP credentials and log in.
    • If all the configurations are correct, it will show you the user details received from the IdP.
    • If the test fails, check if you have missed out any steps or try to debug through SonarQube Logs.
      sonarqube saml single sign on (sso) plugin - test_configuration

    miniorange img  Attribute & Group Mapping

    • In order to map attributes from the Identity Provider to the application, the attribute names received in the SAML response need to be entered in their corresponding fields.
    • To view these attribute names, click on the Test Configuration button in the plugin.
    • Attributes used in SonarQube Application are described briefly as below:
  1. Login Attribute is a unique name assigned to the user to identify them uniquely within the SonarQube system. It's a required attribute.

  2. Name Attribute is the full name of the user, to be mapped from the IdP to the SonarQube. It's a required attribute.

  3. Email Attribute is an optional attribute and represents an email address of the user, to be mapped from the IdP to the SonarQube.

  4. Group Attribute mapping requires the group names, in the application, to be same as the group names in the Identity Provider. Otherwise, the default SonarQube Group is assigned to the user.
    • Eg. To map group value Everyone from SAML response we have to paste groupName in Group Attribute field [Refer with above image].
      • sonarqube saml single sign on (sso) plugin - attribute_mapping

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