TeamCity Azure Active Directory Integration

TeamCity plugin which supports authentication via Microsoft Azure Active Directory.

The plugin is compatible with TeamCity server 10.0+

Installation

Download the plugin and install it as an additional TeamCity plugin.

Configuration

Configuring Azure Active Directory

Register a new Azure Active Directory application for your TeamCity server with the following parameters:

Parameter	Value
Application type	Web
Redirect URIs	%TEAMCITY_URL%/overview.html
	%TEAMCITY_URL%/aadAuth.html

Note: Redirect URIs could be set in the application settings (Authentication\Web).

Configuring TeamCity server

Add the 'Microsoft Azure Active Directory' HTTP authentication module to your authentication configuration.

Specify valid 'OAuth 2.0 authorization endpoint (v1)' and 'Application ID' retrieved from the Azure Portal.

Note: The OAuth 2.0 authorization endpoint URL could be retrieved from the Endpoints available on the App registrations page in the Azure portal. 'OAuth 2.0 authorization endpoint (v2)' is currently unsupported).

After that the 'Log in using Azure Active Directory' link will be available on the Login page.

Switching to the new UI

After successful authentication browser will be redirected to '%TEAMCITY_URL%/overview.html' page by default. This prevents TeamCity from automatic switching to the new UI.

To fix that:

1. In the application setting on Azure portal add a new endpoint: %TEAMCITY_URL%/aadAuth.html to Redirect URIs list
2. Specify the internal property teamcity.aad.endpoint.type=dedicated

Property should be set after applying changes to Azure portal. No TeamCity server restart is requred.

Known issues

Authentication fails with HTTP 403: Origin https://login.microsoftonline.com

To fix that, specify the internal property rest.cors.origins=https://login.microsoftonline.com

Authentication fails with HTTP 403: Origin null

403 Forbidden: Responding with 403 status code due to failed CSRF check: request's "Origin" header value "null" does not match Host/X-Forwarded-Host header values or server's CORS-trusted hosts, consider adding "Origin: %TEAMCITY_URL%" header.

Modern browsers can set Origin: null and Upgrade-Insecure-Requests headers while replying from HTTPS Azure endpoint to the HTTP URL of the TeamCity server due to security reasons.

Possible solutions:

• Use HTTPS for TeamCity server and specify it in the Azure AD application settings
• For testing, you can specify the internal property rest.cors.origins=null (insecure, don't use it in production)

How it works?

This plugin uses the OAuth 2.0 OpenID Connect authentication protocol and works as follows:

• receives the UID, e-mail, username of the AD user the from the specified Azure AD
• looks for an existing TeamCity user for the received UID; and if found, authenticates this TeamCity user
• if allowed by the scheme options, tries to find a TeamCity user using the given e-mail and marks it by UID
• if the user was found and user details synchronization is enabled, it will update the user data
• if the user is not found and user creation is allowed, a new TeamCity user is created; the e-mail is set as the username for the newly created TeamCity user.

Plugin development

Building plugin from sources

This project uses gradle as the build system. You can easily open it in IntelliJ IDEA or Eclipse. Issue the build command from the root project to build your plugin. The resulting package will be placed in the distributions directory.

Contributing

Please follow IntelliJ Coding Guidelines.

Feedback

Please submit your questions/bugs/feature requests in the issues.

Note: This is not a bundled plugin, please do not use the TeamCity official channels to provide feedback for this plugin.