From 25b1ab568a176274f9dfcc5fc8236b0c82869fba Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 16 Jun 2016 21:14:22 +0200 Subject: Adding container rename command. Signed-off-by: Daniel Baumann --- lib/container/rename | 162 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 162 insertions(+) create mode 100755 lib/container/rename (limited to 'lib/container/rename') diff --git a/lib/container/rename b/lib/container/rename new file mode 100755 index 0000000..2d27615 --- /dev/null +++ b/lib/container/rename @@ -0,0 +1,162 @@ +#!/bin/sh + +# container-tools - Manage systemd-nspawn containers +# Copyright (C) 2014-2016 Daniel Baumann +# +# 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 . + +set -e + +COMMAND="$(basename ${0})" + +CONFIG="/etc/container-tools/config" +MACHINES="/var/lib/machines" + +Parameters () +{ + LONG_OPTIONS="force,new:,old:," + OPTIONS="f,n:,o:," + + PARAMETERS="$(getopt --longoptions ${LONG_OPTIONS} --name=${COMMAND} --options ${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 "'${OLD}': rename remote container to '${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" -- cgit v1.2.3