Share gitlab-ci.yml between projects

Question

We are thinking to move our ci from jenkins to gitlab. We have several projects that have the same build workflow. Right now we use a shared library where the pipelines are

Answer 1

Since gitlab version 12.6, it's possible define a external .gitlab-cy.yml file.

To customize the path:

1. Go to the project's Settings > CI / CD.
2. Expand the General pipelines section.
3. Provide a value in the Custom CI configuration path field.
4. Click Save changes. ...

If the CI configuration will be hosted on an external site, the URL link must end with .yml:

http://example.com/generate/ci/config.yml

If the CI configuration will be hosted in a different project within GitLab, the path must be relative to the root directory in the other project, with the group and project name added to the end:

.gitlab-ci.yml@mygroup/another-project

my/path/.my-custom-file.yml@mygroup/another-project