#!/bin/sh # Copyright (C) 2014-2021 Daniel Baumann # # 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 . set -e PROJECT="open-infrastructure" SOFTWARE="compute-tools" PROGRAM="container" COMMAND="$(basename ${0})" HOOKS="/etc/${SOFTWARE}/hooks" MACHINES="/var/lib/machines" Parameters () { GETOPT_LONGOPTIONS="name:," GETOPT_OPTIONS="n:," 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 "${1}" in -n|--name) NAME="${2}" shift 2 ;; --) shift 1 break ;; *) echo "'${COMMAND}': getopt error" >&2 exit 1 ;; esac done } Usage () { echo "Usage: ${PROGRAM} ${COMMAND} -n|--name NAME" >&2 echo echo "See ${COMMAND}(1), ${PROGRAM}(1) and ${PROJECT}(7) for more information." exit 1 } Parameters "${@}" if [ -z "${NAME}" ] then Usage fi if [ ! -e "${MACHINES}/${NAME}" ] then echo "'${NAME}': no such container" >&2 exit 1 fi STATE="$(machinectl show ${NAME} 2>&1 | awk -FState= '/^State=/ { print $2 }')" case "${STATE}" in running) ;; *) echo "'${NAME}': container is not running" >&2 exit 1 ;; esac LEADER="$(machinectl status ${NAME} | awk '/Leader: / { print $2 }')" # Pre hooks for FILE in "${HOOKS}/pre-${COMMAND}".* "${HOOKS}/${NAME}.pre-${COMMAND}" do if [ -x "${FILE}" ] then "${FILE}" fi done SSH_CLIENT="${SSH_CLIENT:-127.0.0.1 0 0}" # Run nsenter --all --target "${LEADER}" --wd="${MACHINES}/${NAME}/root" /usr/bin/script -c "LC_ALL=C.UTF-8 SSH_CLIENT=\"${SSH_CLIENT}\" /bin/bash -l" -q /dev/null case "${SSH_CLIENT}" in 127.0.0.1*) unset SSH_CLIENT ;; esac # Post hooks for FILE in "${HOOKS}/post-${COMMAND}".* "${HOOKS}/${NAME}.post-${COMMAND}" do if [ -x "${FILE}" ] then "${FILE}" fi done