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[Launchpad Bug Tracker <1819046@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package pacemaker - 1.1.14-2ubuntu1.5

---------------
pacemaker (1.1.14-2ubuntu1.5) xenial; urgency=medium

  * Change systemd unit to source /etc/default files by default
    (LP: #1819046)

 -- halves@xxxxxxxxxxxxx (Heitor R. Alves de Siqueira)  Thu, 07 Mar 2019
15:13:34 -0300

** Changed in: pacemaker (Ubuntu Xenial)
       Status: Fix Committed => Fix Released

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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:
  Fix Released

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) Change default pacemaker log location:
      root@pacemaker:~# echo "PCMK_logfile=/tmp/pacemaker.log" >> /etc/default/pacemaker
  4) Restart pacemaker service and verify that log file exists:
      root@pacemaker:~# systemctl restart pacemaker.service
      root@pacemaker:~# ls -l /tmp/pacemaker.log
      ls: cannot access '/tmp/pacemaker.log': No such file or directory

  After fixing the systemd unit, changes to /etc/default/pacemaker get picked up correctly:
      root@pacemaker:~# ls -l /tmp/pacemaker.log
      -rw-rw---- 1 hacluster haclient 27335 Mar  7 20:46 /tmp/pacemaker.log

  
  [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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