/lib/live/config/1160-openssh-server is in open-infrastructure-system-config 20161101-lts1-2.
This file is owned by root:root, with mode 0o755.
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
## live-config(7) - System Configuration Components
## Copyright (C) 2006-2015 Daniel Baumann <mail@daniel-baumann.ch>
##
## This program comes with ABSOLUTELY NO WARRANTY; for details see COPYING.
## This is free software, and you are welcome to redistribute it
## under certain conditions; see COPYING for details.
#set -e
Init ()
{
	# Checking if package is installed or already configured
	if [ ! -e /var/lib/dpkg/info/openssh-server.list ] || \
	   [ -e /var/lib/live/config/openssh-server ]
	then
		exit 0
	fi
	echo -n " openssh-server"
}
Config ()
{
	for _PROTOCOL in dsa rsa ecdsa ed25519
	do
		if [ ! -e /etc/ssh/ssh_host_${_PROTOCOL}_key ] &&
		   grep -qs ssh_host_${_PROTOCOL}_key /etc/ssh/sshd_config
		then
			ssh-keygen -q -f /etc/ssh/ssh_host_${_PROTOCOL}_key -N "" -t ${_PROTOCOL}
			_SSH="true"
		fi
	done
	sed -i -e 's|#\(PasswordAuthentication\) yes|\1 no|' /etc/ssh/sshd_config
	case "${_SSH}" in
		true)
			# Creating state file
			touch /var/lib/live/config/openssh-server
			;;
	esac
}
Init
Config
 |