postinst is in corosync 2.4.3-0ubuntu1.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 | #!/bin/sh
set -e
if [ "$1" = "configure" ]; then
	echo 'This file is here to keep the log dir around after package removal
until #588515 is fixed.' >/var/log/corosync/.empty
	# really was empty before 2.3.5-1
	# For upgrades from older corosync, look for a flag from
	# pacemaker that it was running before upgrade. See LP: #1740892
	if dpkg --compare-versions "$2" lt "2.4.2-3ubuntu1"; then
		if [ -f /run/pacemaker-was-running-lp1740892-workaround ]; then
			if deb-systemd-invoke start pacemaker >/dev/null 2>&1; then
				rm -f /run/pacemaker-was-running-lp1740892-workaround
			fi
		fi
	fi
fi
# Automatically added by dh_systemd_enable/11.1.6ubuntu1
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
	# This will only remove masks created by d-s-h on package removal.
	deb-systemd-helper unmask 'corosync.service' >/dev/null || true
	# was-enabled defaults to true, so new installations run enable.
	if deb-systemd-helper --quiet was-enabled 'corosync.service'; then
		# Enables the unit on first installation, creates new
		# symlinks on upgrades if the unit file has changed.
		deb-systemd-helper enable 'corosync.service' >/dev/null || true
	else
		# Update the statefile to add new symlinks (if any), which need to be
		# cleaned up on purge. Also remove old symlinks.
		deb-systemd-helper update-state 'corosync.service' >/dev/null || true
	fi
fi
# End automatically added section
# Automatically added by dh_installdeb/11.1.6ubuntu1
dpkg-maintscript-helper rm_conffile /etc/corosync/corosync.conf.example 2.3.5-1~ -- "$@"
# End automatically added section
# Automatically added by dh_installdeb/11.1.6ubuntu1
dpkg-maintscript-helper rm_conffile /etc/corosync/corosync.conf.example.udpu 2.3.5-1~ -- "$@"
# End automatically added section
# Automatically added by dh_installinit/11.1.6ubuntu1
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
	if [ -x "/etc/init.d/corosync" ]; then
		update-rc.d corosync defaults >/dev/null
		if [ -n "$2" ]; then
			_dh_action=restart
		else
			_dh_action=start
		fi
		invoke-rc.d corosync $_dh_action || exit 1
	fi
fi
# End automatically added section
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