postinst is in cockpit-ws 164-1.
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 | #!/bin/sh
set -e
adduser --system --group --home / --no-create-home cockpit-ws
if ! dpkg-statoverride --list /usr/lib/cockpit/cockpit-session >/dev/null; then
    dpkg-statoverride --update --add root cockpit-ws 4750 /usr/lib/cockpit/cockpit-session
fi
# Automatically added by dh_systemd_enable/11.1.4ubuntu1
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 'cockpit.socket' >/dev/null || true
	# was-enabled defaults to true, so new installations run enable.
	if deb-systemd-helper --quiet was-enabled 'cockpit.socket'; then
		# Enables the unit on first installation, creates new
		# symlinks on upgrades if the unit file has changed.
		deb-systemd-helper enable 'cockpit.socket' >/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 'cockpit.socket' >/dev/null || true
	fi
fi
# End automatically added section
# Automatically added by dh_installinit/11.1.4ubuntu1
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
	# In case this system is running systemd, we need to ensure that all
	# necessary tmpfiles (if any) are created before starting.
	if [ -d /run/systemd/system ] ; then
		systemd-tmpfiles --create /usr/lib/tmpfiles.d/cockpit-tempfiles.conf >/dev/null || true
	fi
fi
# End automatically added section
# Automatically added by dh_systemd_start/11.1.4ubuntu1
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
	if [ -d /run/systemd/system ]; then
		systemctl --system daemon-reload >/dev/null || true
		deb-systemd-invoke start 'cockpit.socket' >/dev/null || true
	fi
fi
# End automatically added section
# restart cockpit.service on package upgrades, if it's already running
if [ -d /run/systemd/system ] && [ -n "$2" ]; then
    deb-systemd-invoke try-restart cockpit.service >/dev/null || true
fi
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