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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-20 17:12:42 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-20 17:12:42 +0000 |
commit | cbfc4abda5f50267b8b2a40de90ee57424381ec6 (patch) | |
tree | 5e335b17d0e8c9eaadeb403d5ea91822a5867933 /libexec/container/enter | |
parent | Initial commit. (diff) | |
download | open-infrastructure-compute-tools-cbfc4abda5f50267b8b2a40de90ee57424381ec6.tar.xz open-infrastructure-compute-tools-cbfc4abda5f50267b8b2a40de90ee57424381ec6.zip |
Adding upstream version 20221223.upstream/20221223upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rwxr-xr-x | libexec/container/enter | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/libexec/container/enter b/libexec/container/enter new file mode 100755 index 0000000..b366ba6 --- /dev/null +++ b/libexec/container/enter @@ -0,0 +1,129 @@ +#!/bin/sh + +# Copyright (C) 2014-2022 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 <https://www.gnu.org/licenses/>. + +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 |