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["Heitor R. Alves de Siqueira" <1819046@xxxxxxxxxxxxxxxxxx>]

** Tags added: sts-sponsor

** Patch added: "Debdiff for xenial"
   https://bugs.launchpad.net/ubuntu/+source/pacemaker/+bug/1819046/+attachment/5244550/+files/xenial.debdiff

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https://bugs.launchpad.net/bugs/1819046

Title:
  Systemd unit file reads settings from wrong path

Status in pacemaker package in Ubuntu:
  Fix Released
Status in pacemaker source package in Xenial:
  Confirmed

Bug description:
  [Impact]
  Systemd Unit file doesn't read any settings by default

  [Description]
  The unit file shipped with the Xenial pacemaker package tries to read environment settings from /etc/sysconfig/ instead of /etc/default/. The result is that settings defined in /etc/default/pacemaker are not effective.
  Since the /etc/default/pacemaker file is created with default values when the pacemaker package is installed, we should source that in the systemd unit file.

  [Test Case]
  1) Deploy a Xenial container:
      $ lxc launch ubuntu:xenial pacemaker
  2) Update container and install pacemaker:
      root@pacemaker:~# apt update && apt install pacemaker -y
  3) Check the systemd unit file for the "EnvironmentFile" option:
      root@pacemaker:~# systemctl cat pacemaker | grep EnvironmentFile
      EnvironmentFile=-/etc/sysconfig/pacemaker
      EnvironmentFile=-/etc/sysconfig/sbd

  [Regression Potential]
  The regression potential for this should be very low, since the configuration file is already being created by default and other systemd unit files are using the /etc/default config. In case the file doesn't exist or the user removed it, the "-" prefix will gracefully ignore the missing file according to the systemd.exec manual [0].
  Nonetheless, the new package will be tested with autopkgtests and the fix will be validated in a reproduction environment.

  [0] https://www.freedesktop.org/software/systemd/man/systemd.exec.html

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