diff options
Diffstat (limited to 'libexec/container/move')
| -rwxr-xr-x | libexec/container/move | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/libexec/container/move b/libexec/container/move new file mode 100755 index 0000000..e20d8a8 --- /dev/null +++ b/libexec/container/move @@ -0,0 +1,211 @@ +#!/bin/sh + +# Copyright (C) 2014-2021 Daniel Baumann <daniel.baumann@open-infrastructure.net> +# +# SPDX-License-Identifier: GPL-3.0+ +# +# 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 + +PROJECT="open-infrastructure" +PROGRAM="container" +COMMAND="$(basename ${0})" + +CONFIG="/etc/${PROJECT}/${PROGRAM}/config" +HOOKS="/etc/${PROJECT}/${PROGRAM}/hooks" +MACHINES="/var/lib/machines" + +Parameters () +{ + GETOPT_LONGOPTIONS="force,new:,old:," + GETOPT_OPTIONS="f,n:,o:," + + PARAMETERS="$(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: ${PROGRAM} ${COMMAND} [-f|--force] -n|--new NAME -o|--old NAME" >&2 + exit 1 +} + +Parameters "${@}" + +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 -FState= '/^State=/ { print $2 }')" + +case "${STATE}" in + running) + echo "'${OLD}': container is started" >&2 + exit 1 + ;; +esac + +case "${FORCE}" in + true) + ;; + + *) + if ${PROGRAM} list --other | grep -qs "^${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 + +# Pre hooks +for FILE in "${HOOKS}/pre-${COMMAND}".* "${HOOKS}/${OLD}.pre-${COMMAND}" +do + if [ -x "${FILE}" ] + then + "${FILE}" + fi +done + +# Run +mv "${CONFIG}/${OLD}.conf" "${CONFIG}/${NEW}.conf" +mv "${MACHINES}/${OLD}" "${MACHINES}/${NEW}" + +# rw bind mounts +BIND="$(awk -Fbind= '/^bind=/ { print $2 }' ${CONFIG}/${NEW}.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}/${TARGET_NEW}" + fi + done +fi + +# ro bind mounts +BIND_RO="$(awk -Fbind-ro= '/^bind-ro=/ { print $2 }' ${CONFIG}/${NEW}.conf)" + +if [ -n "${BIND_RO}" ] +then + BINDS_RO="$(echo ${BIND_RO} | sed -e 's|;| |g')" + + for BIND_RO in ${BINDS_RO} + do + SOURCE_OLD="$(echo ${BIND_RO} | 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_RO} | 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}/${TARGET_NEW}" + fi + done +fi + +# config +sed -i -e "s|${OLD}|${NEW}|g" "${CONFIG}/${NEW}.conf" + +# Post hooks +for FILE in "${HOOKS}/post-${COMMAND}".* "${HOOKS}/${NEW}.post-${COMMAND}" +do + if [ -x "${FILE}" ] + then + "${FILE}" + fi +done |