/usr/share/lxc/hooks/clonehostname is in lxc-templates 2.0.7-0ubuntu1~16.04.2.
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 | #!/bin/sh
#
# Update the hostname in the cloned container's scripts
#
# Copyright © 2013 Oracle.
#
# This library is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2, as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
# Note that /etc/hostname is updated by lxc itself
for file in \
$LXC_ROOTFS_PATH/etc/sysconfig/network \
$LXC_ROOTFS_PATH/etc/sysconfig/network-scripts/ifcfg-* \
$LXC_ROOTFS_PATH/etc/hosts ;
do
if [ -f $file ]; then
sed -i "s|$LXC_SRC_NAME|$LXC_NAME|" $file
fi
done
exit 0
|