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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 Committed
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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