Issue
Using a multibranch pipeline I see a list of all my Git branches.
However, I would expect git tags to appear in the list also but they don't seem to be listed.
Is this expected behaviour or is this possibly a config issue? Are tags supported? If tags are not supported, is there a plugin that can work in harmony with the multibranch pipeline to support tags?
Solution
I think the problem you're facing is described in Jira issue JENKINS-34395.
As far as I understand, the multibranch plugin does not support tags and is focused only in building branches. The workaround suggested is to have two separate builds, one for a normal branch build and second (seems not configured with a Jenkinsfile) to build a tag.
Update, 14.04.2021:
Jenkins does support tag builds now as described in this post but tag builds may not run automatically because of build strategy. Refer to this comment for some details.
Answered By - Ivan Stanislavciuc
