Add migration page for Gemnasium

doc/user/project/import/gemnasium.md

+# Gemnasium
+
+## Why is Gemnasium.com closed?
+
+Gemnasium has been [acquired by GitLab](https://about.gitlab.com/press/releases/2018-01-30-gemnasium-acquisition.html)
+in January 2018. Since May 15, 2018, the services provided by Gemnasium are no longer available.
+The team behind Gemnasium has joined GitLab as the new Security Products team
+and is working on a wider range of tools than just Dependency Scanning:
+[SAST](../merge_requests/sast.md),
+[DAST](../merge_requests/dast.md),
+[Container Scanning](../merge_requests/container_scanning.md) and more.
+If you want to continue monitoring your dependencies, see the "Migrating to GitLab"
+section below.
+
+## What happened to my account?
+
+Your account has been automatically closed on May 15th, 2018. If you had a paid
+subscription at that time your card will be refunded on a pro rata temporis basis.
+You may contact us regarding your closed account at gemnasium@gitlab.com.
+
+## Will my account/data be transferred to GitLab?
+
+All accounts and data have been deleted on May 15th. GitLab doesn't know anything
+about your private data, nor your projects, and therefore if they were vulnerable
+or not. GitLab takes personal information very seriously.
+
+## What happened to my badge?
+
+To avoid broken 404 images, all badges pointing to gemnasium.com will be a
+placeholder, inviting you to migrate to GitLab (and pointing to this page).
+
+# Migrating to GitLab
+
+Gemnasium has been ported and integrated directly into GitLab CI/CD.
+You can still benefit from our dependency monitoring features, and it requires
+some steps to migrate your projects. There is no automatic import since GitLab
+doesn't know anything about any projects which existed on Gemnasium.com.
+Security features are free for public (open-source) projects hosted on GitLab.com.
+
+## If your project is hosted on GitLab (https://gitlab.com / self-hosted)
+
+You almost set! If you are already using
+[Auto DevOps](https://docs.gitlab.com/ee/topics/autodevops/), you are already covered.
+Otherwise, you must configure your `.gitlab-ci.yml` according to the
+[dependency scanning page](../merge_requests/dependency_scanning.md).
+
+
+## If your project is hosted on GitHub (https://github.com / GitHub Enterprise)
+
+Since [10.6 coming with GitHub integration](https://about.gitlab.com/features/github/),
+GitLab users can now create a CI/CD project in GitLab connected to an external
+GitHub.com or GitHub Enterprise code repository. This will automatically prompt
+GitLab CI/CD to run whenever code is pushed to GitHub and post CI/CD results
+back to both GitLab and GitHub when completed.
+
+### Getting started
+
+Create a new project, and select the "CI/CD for external repo" tab:
+
+![Create new Project](img/gemnasium/create_project.png)
+
+Use the "GitHub" button to connect your repositories.
+
+![Connect from GitHub](img/gemnasium/connect_github.png)
+
+Select the project(s) to be set up with GitLab CI/CD:
+
+![Select projects](img/gemnasium/select_project.png)
+
+and chose "Connect". Once the configuration is done, you may click on your new
+project on GitLab:
+
+![click on connected project](img/gemnasium/project_connected.png)
+
+Your project is now mirrored on GitLab, where the runners will be able to access
+your source code and run your tests.
+
+Optional step: Make sure the project is public (in the project settings) if your
+GitHub project is public unless the security feature will be available only for paid accounts.
+
+To set up the dependency scanning job, corresponding to what Gemnasium what doing,
+you must create a `.gitlab-ci.yml` file, or update it according to
+https://docs.gitlab.com/ee/user/project/merge_requests/dependency_scanning.html.
+The mirroring is pull-only by default, so you may create or update the file on GitHub:
+
+![Edit gitlab-ci.yml file](img/gemnasium/edit_gitlab-ci.png)
+
+Once your file has been committed, a new pipeline will be automatically
+triggered if your file is valid:
+
+![pipeline](img/gemnasium/pipeline.png)
+
+The result of the job will be visible directly from the pipeline view:
+
+![security report](img/gemnasium/report.png)
+
+If you don't commit very often to your project, you may want to use
+[Scheduled pipelines](../pipelines/schedules.html)
+to run the job on a regular basis.

doc/user/project/import/index.md

@@ -11,6 +11,7 @@
 1. [From SVN](svn.md)
 1. [From TFS](tfs.md)
 1. [From repo by URL](repo_by_url.md)
+1. [From Gemnasium](gemnasium.md)
 
 In addition to the specific migration documentation above, you can import any
 Git repository via HTTP from the New Project page. Be aware that if the