Use puppet-git's tails Git repo in reprepro config generation script
Reprepro scripts that need to fetch the main Tails git repo must use the one on puppet-git so that network troubles are handled at the git level and we don’t get annoyed by tons of emails when cronjobs fail.
This means passing another $git_remote
parameter to the
tails::reprepro::custom
class, managing a SSH key pair with Puppet,
and configuring Gitolite to give read-only access to that key.
Parent Task: #11869
Original created by @bertagaz on 8509 (Redmine)