check_init_script_exists in lib/tasks/gitlab/check.rake assumes /etc/init.d exists.
Created by: crocket
Ubuntu has /etc/init.d, but other linux distributions don't have it.
On archlinux, gitlab is an AUR package. https://aur.archlinux.org/packages/gitlab
The AUR package install init scripts in /usr/lib/systemd/system.
I think check_init_script_exists should expand its assumptions.