Add method to publish build artifacts to GitLab

[ananace]

There's currently a lack of a method to push build artifacts from Jenkins to GitLab as resulting from the builds. On Merge Requests this can be hacked around by providing a comment with the artifact links, but for regular Push and Tag builds that method won't work.

GitLab does seem to have support for this through their API as well, though I don't know how hard it would be to do from the Jenkins side.

[mreichel]

Unfortunately the support seems to be for internal ci only. There is no upload api for consumer clients.

[omehegan]

@mreichel I talked to @dblessing from GitLab about this, he thinks it would be possible for us to hook into this feature of GitLab. After Jenkins builds and reports the result to GitLab, GitLab creates an internal build ID. By querying for that ID, we can then use that to attach files.

[mreichel]

Ok, great. I take a look on it.

[mreichel]

@dblessing If I understand it correctly, I get the internal build ID back, when I set the commit status (for example). But I still need to authenticate against the internal build API with the CI_BUILD_TOKEN to post the attachments (that does not work for me at the moment). Is that correct? Or is there a way to use the API token?

[omehegan]

@dblessing can you comment on this? Or @mreichel maybe open an issue directly with GitLab: https://gitlab.com/gitlab-org/gitlab-ce/issues/

[mreichel]

I opened the following issue: https://gitlab.com/gitlab-org/gitlab-ce/issues/35183 with Gitlab Should we close the issue here?

[omehegan]

Let's keep this open so we have a link to the issue on the GitLab side, in case others come along looking for this feature. Thanks!

[asadpiz]

Any Update on this feature?

[galek]

bump!

[builder-main]

Interested as well. Thanks for the investigation. Updated gitlab issue link https://gitlab.com/gitlab-org/gitlab/-/issues/18794