Arvados

In arvados-dev as of 4951623dc2a418270b5822ad5da0547a39356ea4, jenkins/packer-images/jenkins-image-common.sh says:

# create a reference repository (bare git repo)
# jenkins will use this to speed up the checkout for each job
cd /usr/src
sudo git clone --mirror git://git.arvados.org/arvados.git
sudo chown jenkins:jenkins arvados.git -R

It is not clear whether or how this works. If you review the console output for Jenkins tests, they do a fresh clone under the /tmp workspace. It would maybe save time if they cloned from /usr/src/arvados.git, but there's no indication they do that.

Similar logic applies to the checkout at /usr/local/arvados-dev.

If the Jenkins jobs don't actually use this, then it probably shouldn't be in the image either. The Packer image build jobs tend to assume that arvados-dev is checked out under /usr/local. Consider reconfiguring these jobs to work the normal way in preparation for removing the checkouts.