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#!/bin/sh
# container-tools - Manage systemd-nspawn containers
# Copyright (C) 2014-2016 Daniel Baumann <daniel.baumann@open-infrastructure.net>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# 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, see <http://www.gnu.org/licenses/>.
set -e
COMMAND="$(basename ${0})"
CONFIG="/etc/container-tools/config"
MACHINES="/var/lib/machines"
Parameters ()
{
GETOPT_LONGOPTIONS="force,new:,old:,"
GETOPT_OPTIONS="f,n:,o:,"
PARAMETERS="$(getopt --longoptions ${GETOPT_LONGOPTIONS} --name=${COMMAND} --options ${GETOPT_OPTIONS} --shell sh -- ${@})"
if [ "${?}" != "0" ]
then
echo "'${COMMAND}': getopt exit" >&2
exit 1
fi
eval set -- "${PARAMETERS}"
while true
do
case "${1}" in
-f|--force)
FORCE="true"
shift 1
;;
-n|--new)
NEW="${2}"
shift 2
;;
-o|--old)
OLD="${2}"
shift 2
;;
--)
shift 1
break
;;
*)
echo "'${COMMAND}': getopt error" >&2
exit 1
;;
esac
done
}
Usage ()
{
echo "Usage: container ${COMMAND} [-f|--force] -n|--new NAME -o|--old NAME" >&2
exit 1
}
Parameters "${@}"
if [ -z "${OLD}" ] || [ -z "${NEW}" ]
then
Usage
fi
if [ ! -e "${MACHINES}/${OLD}" ]
then
echo "'${OLD}': no such container" >&2
exit 1
fi
if [ ! -e "${MACHINES}/${NEW}" ]
then
echo "'${NEW}': container already exists" >&2
exit 1
fi
STATE="$(machinectl show ${OLD} 2>&1 | awk -F= '/^State=/ { print $2 }')"
case "${STATE}" in
running)
echo "'${OLD}': container is started" >&2
exit 1
;;
esac
case "${FORCE}" in
true)
;;
*)
if container list --other | grep -qs "^${OLD}$"
then
echo -n "'${OLD}': rename container to '${NEW}' [y|N]? "
read FORCE
FORCE="$(echo ${FORCE} | tr [A-Z] [a-z])"
case "${FORCE}" in
y|yes)
;;
*)
exit 1
;;
esac
fi
;;
esac
# Run
mv "${CONFIG}/${OLD}.conf" "${CONFIG}/${NEW}.conf"
mv "${MACHINES}/${OLD}" "${MACHINES}/${NEW}"
# Renaming bind mounts
BIND="$(awk -F= '/^bind=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
if [ -n "${BIND}" ]
then
BINDS="$(echo ${BIND} | sed -e 's|;| |g')"
for BIND in ${BINDS}
do
SOURCE_OLD="$(echo ${BIND} | awk -F: '{ print $1 }')"
SOURCE_NEW="$(echo ${SOURCE_OLD} | sed -e "s|${OLD}|${NEW}|g")"
if [ "${SOURCE_OLD}" != "${SOURCE_NEW}" ]
then
mv "${SOURCE_OLD}" "${SOURCE_NEW}"
fi
TARGET_OLD="$(echo ${BIND} | awk -F: '{ print $2 }')"
TARGET_NEW="$(echo ${TARGET_OLD} | sed -e "s|${OLD}|${NEW}|g")"
if [ "${TARGET_OLD}" != "${TARGET_NEW}" ]
then
mv "${MACHINES}/${NEW}/${TARGET_OLD}" "${MACHINES}/${NEW}/${TARGET_NEW}"
fi
done
fi
# Updating configuration file
sed -i -e "s|${OLD}|${NEW}|g" "${CONFIG}/${NEW}.conf"
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