Issue 49875 - Move SystemD service config to a drop-in file
Bug Description:
Runtime configuration options are mixed into the service specification
which should seldom be changed by users.
Fix Description:
Move the runtime configuration options into a drop-in file. These options
are then automatically pulled in by SystemD.
Additional Info:
Erasing the default values of the mentioned options to implicitly pull in
system defaults which are more sane nowadays.
The .service file is now common for xsan and non-xsan builds, the former
differring only by an additional drop-in file.
Related https://pagure.io/389-ds-base/issue/49875
Author: Matus Honek <mhonek@redhat.com>
Review by: firstyear, mreynolds, vashirov (thanks!)