SAML Single Sign On (SSO) into SonarQube using Azure AD

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 Azure AD. By the end of this guide, Azure AD users should be able to log in and register to the SonarQube Server.

Step 1: Setup Azure AD as Identity Provider

    miniorange img Prerequisites:

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

    • SP Entity ID
    • ACS URL

    miniorange img Instructions:

  • Log in to Azure AD Portal

  • Select Azure Active Directory ⇒ App Registrations. Click on New Application Registration.

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  • Assign a Name and choose the account type.In the Redirect URI field, provide the ACS URL provided in Service Provider Info tab of the plugin and click on Register button.
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  • Now, navigate to Expose an API menu option and Click the Set button and replace the APPLICATION ID URI with the plugin's SP Entity ID

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  • Go back to Azure Active Directory ⇒ App Registrations window and click on Endpoints link.

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  • This will open up a window with multiple URLs listed there. Copy the Federation Metadata Document URL. This will be required while configuring the SAML plugin.

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  • Log in to Azure AD Portal

  • Select Azure Active Directory ⇒ Enterprise Applications.

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  • Click on New Application.

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  • Click on Non-gallery application section and enter the name for your app and click on Add button.

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  • Click on Single sign-on from the application's left-hand navigation menu. The next screen presents the options for configuring single sign-on. Click on SAML.

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  • Edit the option 1 :Basic SAML Configuration to configure plugin endpoints.
  • Enter the SP Entity ID for Identifier and the ACS URL for Reply URL from Service Provider Info tab of the plugin.

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  • Click on Save icon.
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  • By default, the following Attributes will be sent in the SAML token. You can view or edit the claims sent in the SAML token to the application under the User Attributes & Claims tab.
  • You can add attribute using Add new claim
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  • Copy App Federation Metadata Url from setup tab.

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  • Click on User and groups from the applications left-hand navigation menu. The next screen presents the options for assigning the users/groups to the application.

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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. 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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