postinst is in php7.2-fpm 7.2.3-1ubuntu1.
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 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 | #!/bin/sh
set -e
if [ -e /usr/share/apache2/apache2-maintscript-helper ]; then
    . /usr/share/apache2/apache2-maintscript-helper
    php_enable() {
	# Don't enable PHP FPM by default when Apache 2 is installed
	apache2_msg notice "NOTICE: Not enabling PHP 7.2 FPM by default."
	apache2_msg notice "NOTICE: To enable PHP 7.2 FPM in Apache2 do:"
	apache2_msg notice "NOTICE: a2enmod proxy_fcgi setenvif"
	apache2_msg notice "NOTICE: a2enconf php7.2-fpm"
	apache2_msg notice "NOTICE: You are seeing this message because you have apache2 package installed."
	return 1
    }
else
    php_enable() {
	# Don't enable PHP FPM by default when Apache 2 is not installed
	return 1
    }
fi
if [ "$1" = "triggered" ] && [ "$2" = "/etc/php/7.2/fpm/conf.d" ]; then
    invoke-rc.d php7.2-fpm restart
fi
CONFDIR=/etc/php/7.2/fpm/conf.d
if [ "$1" = "configure" ]; then
    phpini="/etc/php/7.2/fpm/php.ini"
    if [ "fpm" = "cli" ]; then
	ucf /usr/lib/php/7.2/php.ini-production.fpm $phpini
    else
	ucf /usr/lib/php/7.2/php.ini-production $phpini
    fi
    ucfr php7.2-fpm $phpini
    if [ -e /usr/lib/php/php-maintscript-helper ]; then
	. /usr/lib/php/php-maintscript-helper
	
	mods=$(phpquery -M -v 7.2)
	for mod in $mods; do
	    php_invoke enmod 7.2 fpm $mod
	done
    fi
    if [ -n "$2" ] && dpkg --compare-versions "$2" lt "7.0.3-2~"; then
	rm -f /etc/php/7.2/fpm/conf.d/20-opcache.ini;
    fi	    
fi
# Automatically added by dh_apache2/UNDECLARED
if php_enable; then
	if [ -e /usr/share/apache2/apache2-maintscript-helper ] ; then
		. /usr/share/apache2/apache2-maintscript-helper
		for conf in php7.2-fpm  ; do
			apache2_invoke enconf $conf  || exit 1
		done
	fi
fi
# End automatically added section
# 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 'php7.2-fpm.service' >/dev/null || true
	# was-enabled defaults to true, so new installations run enable.
	if deb-systemd-helper --quiet was-enabled 'php7.2-fpm.service'; then
		# Enables the unit on first installation, creates new
		# symlinks on upgrades if the unit file has changed.
		deb-systemd-helper enable 'php7.2-fpm.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 'php7.2-fpm.service' >/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/php7.2-fpm.conf >/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
	if [ -x "/etc/init.d/php7.2-fpm" ]; then
		update-rc.d php7.2-fpm defaults >/dev/null
		if [ -n "$2" ]; then
			_dh_action=restart
		else
			_dh_action=start
		fi
		invoke-rc.d php7.2-fpm $_dh_action || exit 1
	fi
fi
# End automatically added section
exit 0
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