Files
zitadel/apps/docs/content/guides/integrate/services/gitlab-saml.mdx
T
d8ea041c56 docs: introduce versioned docs and migrate to fuma (#11166)
## Todos for release

- [x] Configure Env in docs project on vercel
- [x] Configure Root Path in the docs project on vercel
- [ ] Remove old CSP https://github.com/zitadel/website/pull/1592

## What we did

This pull request migrates the project documentation from the old
`docs/` directory to the new `apps/docs/` directory, introduces a new
documentation system built with Next.js and Fumadocs, and updates all
relevant references, configuration files, and documentation to reflect
this change. It also adds new configuration and ignore files for the new
documentation app, updates CI and linting to exclude the new docs from
certain checks, and revises the contributing guidelines accordingly.

**Documentation System Migration and New Docs App**

* Migrated all documentation from `docs/` to `apps/docs/`, and updated
all references in `README.md`, `CONTRIBUTING.md`, and other files to
point to the new location.
[[1]](diffhunk://#diff-eca12c0a30e25b4b46522ebf89465a03ba72a03f540796c979137931d8f92055L585-L640)
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* Added a new Next.js/Fumadocs-based documentation app under
`apps/docs/`, including core app files, layouts, routing, search API,
and a comprehensive `README.md` with development and contribution
instructions.
[[1]](diffhunk://#diff-5a1b07344a2c1b4d3f37b23ff1388b62cd9f57dea3c1cd23d8a0412b7602b132R1-R74)
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[apps/docs/app/[[...slug]]/layout.tsxR1-R81](diffhunk://#diff-59e08acde4e805b7aeccef1dcf98f1d71dfc550777e6b9402085cee0e9fa4e0aR1-R81),
[apps/docs/app/[[...slug]]/page.tsxR1-R79](diffhunk://#diff-e5df3f80d0fa01e12d63d81f29c57a9d14e846c78fd3beabb2ef768e38fd9580R1-R79),
[[4]](diffhunk://#diff-389b34918e040cacaa87cd7201ffa462cc2b0b716736f537e3d3c660ac69353bR1-R7)
[[5]](diffhunk://#diff-d3b03416d1c457b19f1c27b26f2db741412df841b875c26ccadc36e4522247f4R1-R29)
[[6]](diffhunk://#diff-c8fb8339570a5305809be7c618e14705fd86390dc278e6ce8ba224a7bc8b0c3cR1-R25)

**Configuration and Tooling Updates**

* Updated `.github/workflows/codeql.yml`, `.golangci.yaml`, and
`.github/dependabot.yml` to properly handle the new docs app: excluded
`apps/docs` from certain checks, added npm dependency updates for the
docs app, and excluded generated content.
[[1]](diffhunk://#diff-12783128521e452af0cfac94b99b8d250413c516ec71fe6d97dbea666ff7ba27L8-R14)
[[2]](diffhunk://#diff-9917ddc9f1c3304218f7269265b746d997c5c0615478177b5fceecd33ef47cb5R5-R6)
[[3]](diffhunk://#diff-9917ddc9f1c3304218f7269265b746d997c5c0615478177b5fceecd33ef47cb5R126-R129)
[[4]](diffhunk://#diff-dd4fbda47e51f1e35defb9275a9cd9c212ecde0b870cba89ddaaae65c5f3cd28R89-R106)
* Updated `.devcontainer/devcontainer.json` to use the latest Go 1.25.3
version for consistency.

**Licensing and Miscellaneous**

* Added `apps/docs/` to the list of licensed directories in
`LICENSING.md`.

These changes ensure the documentation is now maintained in a modern,
scalable system and all project tooling is updated to support the new
structure.

---------

Co-authored-by: Federico Coppede <[email protected]>
2026-01-29 08:38:36 -08:00

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---
title: Log in with ZITADEL on Gitlab through SAML 2.0
sidebar_label: Gitlab
---
This guide shows how to enable login with ZITADEL on Gitlab.
It covers how to:
- create and configure the application in your project
- create and configure the connection in Gitlab SaaS
Prerequisites:
- existing ZITADEL Instance, if not present follow [this guide](/guides/start/quickstart)
- existing ZITADEL Organization, if not present follow [this guide](/guides/manage/console/organizations-overview)
- existing ZITADEL project, if not present follow the first 3 steps [here](/guides/manage/console/projects-overview)
- existing Gitlab SaaS Setup in the premium tier
> We have to switch between ZITADEL and Gitlab. If the headings begin with "ZITADEL" switch to the ZITADEL
> Management Console and
> if the headings start with "Gitlab" please switch to the Gitlab GUI.
## **Gitlab**: Create a new external identity provider
Please follow the instructions on [Gitlab docs](https://docs.gitlab.com/ee/user/group/saml_sso/index.html) to configure a SAML identity provider for SSO.
The following instructions give you a quick overview of the most important steps.
[Open the group](https://gitlab.com/dashboard/groups) to which you want to add the SSO configuration.
Select on the menu Settings and then SAML SSO.
Copy `GitLab metadata URL` for the next step.
![](../../../../public/img/saml/gitlab/gitlab-01.png)
## **ZITADEL**: Create the application
In your existing project:
Press the "+"-button to add an application
![](../../../../public/img/saml/zitadel/project.png)
Fill in a name for the application and chose the SAML type, then click "Continue".
![](../../../../public/img/saml/zitadel/application_saml.png)
Enter the URL from before, then click "Continue".
![](../../../../public/img/saml/zitadel/application_saml_metadata.png)
Check your application, if everything is correct, press "Create".
![](../../../../public/img/saml/zitadel/application_saml_create.png)
## **Gitlab**: Configuration
Complete the configuration as follows:
- `Identity provider single sign-on URL`: `${CUSTOM_DOMAIN}/saml/v2/SSO`
- `Certificate fingerprint`: You need to download the certificate from \{your_instance_domain}/saml/v2/certificate and create a SHA1 fingerprint
Save the changes.
![](../../../../public/img/saml/gitlab/gitlab-02.png)
## **Gitlab**: Verify SAML configuration
Once you saved the changes, click on the button "Verify SAML configuration".
You should be redirected to ZITADEL.
Login with your user.
After that you should be redirected back to GitLab and you can inspect the Response Output.
![](../../../../public/img/saml/gitlab/gitlab-03.png)