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|
#!/bin/sh
# Copyright (C) 2014-2019 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
COMMAND="$(basename ${0})"
CONFIG="/etc/compute-tools/container/config"
HOOKS="/etc/compute-tools/container/hooks"
MACHINES="/var/lib/machines"
START="false"
SYSTEMCTL="true"
Parameters ()
{
OPTIONS_ALL=""
GETOPT_LONGOPTIONS="name:,force,nspawn,start,"
GETOPT_OPTIONS="n:f,"
PARAMETERS="$(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
;;
-f|--force)
FORCE="true"
shift 1
OPTIONS_ALL="${OPTIONS_ALL} --force"
;;
--nspawn)
# internal option
SYSTEMCTL="false"
shift 1
;;
--start)
# internal option
START="true"
SYSTEMCTL="false"
shift 1
;;
--)
shift 1
break
;;
*)
echo "'${COMMAND}': getopt error" >&2
exit 1
;;
esac
done
}
Usage ()
{
echo "Usage: container ${COMMAND} -n|--name NAME [-f|--force]" >&2
exit 1
}
Parameters "${@}"
if [ -z "${NAME}" ]
then
Usage
fi
case "${NAME}" in
ALL)
NAMES="$(container list --format shell --stopped)"
for NAME in ${NAMES}
do
case "${VERBOSE}" in
true)
echo "Starting container ${NAME}..."
;;
esac
container start --name ${NAME} ${OPTIONS_ALL} || true
done
exit 0
;;
esac
if [ ! -e "${MACHINES}/${NAME}" ]
then
echo "'${NAME}': no such container" >&2
exit 1
fi
case "${START}" in
false)
STATE="$(machinectl show ${NAME} 2>&1 | awk -F= '/^State=/ { print $2 }')"
case "${STATE}" in
running)
echo "'${NAME}': container is already started" >&2
exit 1
;;
esac
;;
esac
if [ -e "${MACHINES}/.#${NAME}.lck" ]
then
case "${FORCE}" in
true)
rm -f "${MACHINES}/.#${NAME}.lck"
;;
*)
echo "'${NAME}': container is locked" >&2
exit 1
;;
esac
fi
HOST_ARCHITECTURE="$(dpkg --print-architecture)"
MACHINE_ARCHITECTURE="$(chroot ${MACHINES}/${NAME} dpkg --print-architecture)"
case "${HOST_ARCHITECTURE}" in
amd64)
case "${MACHINE_ARCHITECTURE}" in
i386)
SETARCH="setarch i686"
;;
*)
SETARCH=""
;;
esac
;;
esac
case "${START}" in
start)
;;
*)
# Pre hooks
for FILE in "${HOOKS}/pre-${COMMAND}".* "${HOOKS}/${NAME}.pre-${COMMAND}"
do
if [ -x "${FILE}" ]
then
"${FILE}"
fi
done
;;
esac
# config
if [ -e "${CONFIG}/${NAME}.conf" ]
then
CNT_OVERLAY="$(awk -F= '/^cnt.overlay=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
if [ -n "${CNT_OVERLAY}" ]
then
CNT_OVERLAYS="$(echo ${CNT_OVERLAY} | sed -e 's|;| |g')"
for CNT_OVERLAY in ${CNT_OVERLAYS}
do
DIRECTORY_LOWER="$(echo ${CNT_OVERLAY} | awk -F: '{ print $1 }')"
DIRECTORY_UPPER="$(echo ${CNT_OVERLAY} | awk -F: '{ print $2 }')"
DIRECTORY_WORK="$(echo ${CNT_OVERLAY} | awk -F: '{ print $3 }')"
DIRECTORY_MERGED="$(echo ${CNT_OVERLAY} | awk -F: '{ print $4 }')"
for DIRECTORY in "${DIRECTORY_LOWER}" "${DIRECTORY_UPPER}" "${DIRECTORY_WORK}" "${DIRECTORY_MERGED}"
do
mkdir -p "${DIRECTORY}"
done
if ! findmnt -n -o SOURCE "${DIRECTORY_MERGED}" | grep -qs '^cnt.overlay-'
then
mount cnt.overlay-${NAME} -t overlay -olowerdir="${DIRECTORY_LOWER}",upperdir="${DIRECTORY_UPPER}",workdir="${DIRECTORY_WORK}",default_permissions "${DIRECTORY_MERGED}"
fi
done
fi
BIND="$(awk -F= '/^bind=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
if [ -n "${BIND}" ]
then
BINDS="$(echo ${BIND} | sed -e 's|;| |g')"
for BIND in ${BINDS}
do
DIRECTORY="$(echo ${BIND} | awk -F: '{ print $1 }')"
if [ ! -e "${DIRECTORY}" ]
then
echo "'${DIRECTORY}': creating non-existing directory for bind mounting"
mkdir -p "${DIRECTORY}"
fi
done
BIND=""
for DIRECTORIES in ${BINDS}
do
BIND="${BIND} --bind ${DIRECTORIES}"
done
fi
BIND_RO="$(awk -F= '/^bind-ro=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
if [ -n "${BIND_RO}" ]
then
BINDS_RO="$(echo ${BIND_RO} | sed -e 's|;| |g')"
for BIND_RO in ${BINDS_RO}
do
DIRECTORY="$(echo ${BIND_RO} | awk -F: '{ print $1 }')"
if [ ! -e "${DIRECTORY}" ]
then
echo "'${DIRECTORY}': creating non-existing directory for bind-ro mounting"
mkdir -p "${DIRECTORY}"
fi
done
BIND_RO=""
for DIRECTORIES in ${BINDS_RO}
do
BIND_RO="${BIND_RO} --bind-ro ${DIRECTORIES}"
done
fi
BOOT="$(awk -F= '/^boot=/ { print $2 }' ${CONFIG}/${NAME}.conf || echo yes)"
case "${BOOT}" in
yes)
BOOT="--boot"
;;
*)
BOOT=""
;;
esac
CAPABILITY="$(awk -F= '/^capability=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
case "${CAPABILITY}" in
"")
CAPABILITY=""
;;
*)
CAPABILITY="--capability=${CAPABILITY}"
;;
esac
DIRECTORY="$(awk -F= '/^directory=/ { print $2 }' ${CONFIG}/${NAME}.conf || echo ${MACHINES}/${NAMES})"
DIRECTORY="--directory ${DIRECTORY}"
DROP_CAPABILITY="$(awk -F= '/^drop-capability=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
case "${DROP_CAPABILITY}" in
"")
DROP_CAPABILITY=""
;;
*)
DROP_CAPABILITY="--drop-capability=${DROP_CAPABILITY}"
;;
esac
LINK_JOURNAL="$(awk -F= '/^link-journal=/ { print $2 }' ${CONFIG}/${NAME}.conf || echo no)"
case "${LINK_JOURNAL}" in
yes)
LINK_JOURNAL="--link-journal=yes"
;;
*)
LINK_JOURNAL="--link-journal=no"
;;
esac
MACHINE="--machine=${NAME}"
NETWORK_VETH_EXTRA=""
VETHS="$(awk -F= '/^network-veth-extra=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
case "${VETHS}" in
"")
;;
*)
for VETH in ${VETHS}
do
NETWORK_VETH_EXTRA="${NETWORK_VETH_EXTRA} --network-veth-extra=${VETH}"
INTERFACE="$(echo ${VETH} | awk -F: '{ print $1 }')"
if [ "$(echo ${INTERFACE} | wc -c)" -gt 15 ]
then
echo "'${INTERFACE}': name exceeds maximum of 15 characters, network might be not working."
fi
done
;;
esac
NETWORK_BRIDGES="$(awk -F= '/^cnt.network-bridge=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
case "${NETWORK_BRIDGES}" in
"")
;;
*)
for BRIDGE_DEFINITION in ${NETWORK_BRIDGES}
do
INTERFACE="$(echo ${BRIDGE_DEFINITION} | awk -F: '{ print $1 }')"
BRIDGE="$(echo ${BRIDGE_DEFINITION} | awk -F: '{ print $2 }')"
if [ "$(echo ${INTERFACE} | wc -c)" -gt 15 ]
then
echo "'${INTERFACE}': name exceeds maximum of 15 characters, network might be not working."
fi
if [ -n "${BRIDGE}" ] && [ -n "${INTERFACE}" ]
then
cat > "/etc/network/interfaces.d/${INTERFACE}" << EOF
allow-hotplug ${INTERFACE}
iface ${INTERFACE} inet manual
pre-up ip link set ${INTERFACE} up
post-up ip link set ${INTERFACE} master ${BRIDGE}
pre-down ip link set ${INTERFACE} nomaster
post-down ip link set ${INTERFACE} down
EOF
else
echo "Warning bridge definition '${BRIDGE_DEFINITION}' not recognized (expected <bridge>:<interface>): Ignoring"
fi
done
;;
esac
PRIVATE_USERS="$(awk -F= '/^private-users=/ { print $2 }' ${CONFIG}/${NAME}.conf || echo no)"
case "${PRIVATE_USERS}" in
yes)
PRIVATE_USERS="--private-users=yes"
;;
*)
PRIVATE_USERS="--private-users=no"
;;
esac
REGISTER="$(awk -F= '/^register=/ { print $2 }' ${CONFIG}/${NAME}.conf || echo yes)"
case "${REGISTER}" in
yes)
REGISTER="--register=yes"
;;
*)
REGISTER="--register=no"
;;
esac
BLOCK_IO_DEVICE_WEIGHT="$(awk -F= '/^BlockIODeviceWeight=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
if [ -n "${BLOCK_IO_DEVICE_WEIGHT}" ]
then
BLOCK_IO_DEVICE_WEIGHT="BlockIODeviceWeight=${BLOCK_IO_DEVICE_WEIGHT}"
SET_PROPERTY="true"
fi
BLOCK_IO_READ_BANDWIDTH="$(awk -F= '/^BlockIOReadBandwidth=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
if [ -n "${BLOCK_IO_READ_BANDWIDTH}" ]
then
BLOCK_IO_READ_BANDWIDTH="BlockIOReadBandwidth=${BLOCK_IO_READ_BANDWIDTH}"
SET_PROPERTY="true"
fi
BLOCK_IO_WEIGHT="$(awk -F= '/^BlockIOWeight=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
if [ -n "${BLOCK_IO_WEIGHT}" ]
then
BLOCK_IO_WEIGHT="BlockIOWeight=${BLOCK_IO_WEIGHT}"
SET_PROPERTY="true"
fi
BLOCK_IO_WRITE_BANDWIDTH="$(awk -F= '/^BlockIOWriteBandwidth=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
if [ -n "${BLOCK_IO_WRITE_BANDWIDTH}" ]
then
BLOCK_IO_WRITE_BANDWIDTH="BlockIOWriteBandwidth=${BLOCK_IO_WRITE_BANDWIDTH}"
SET_PROPERTY="true"
fi
CPU_QUOTA="$(awk -F= '/^CPUQuota=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
if [ -n "${CPU_QUOTA}" ]
then
CPU_QUOTA="CPUQuota=${CPU_QUOTA}"
SET_PROPERTY="true"
fi
CPU_SHARES="$(awk -F= '/^CPUShares=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
if [ -n "${CPU_SHARES}" ]
then
CPU_SHARES="CPUShares=${CPU_SHARES}"
SET_PROPERTY="true"
fi
MEMORY_LIMIT="$(awk -F= '/^MemoryLimit=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
if [ -n "${MEMORY_LIMIT}" ]
then
MEMORY_LIMIT="MemoryLimit=${MEMORY_LIMIT}"
SET_PROPERTY="true"
fi
TASKS_MAX="$(awk -F= '/^TasksMax=/ { print $2 }' ${CONFIG}/${NAME}.conf)"
if [ -n "${TASKS_MAX}" ]
then
TASKS_MAX="TasksMax=${TASKS_MAX}"
SET_PROPERTY="true"
fi
fi
case "${SYSTEMCTL}" in
true)
systemctl start container@${NAME}.service
# FIXME start console .. after sleep? + configuration option
exit 0
;;
esac
case "${START}" in
true)
case "${SET_PROPERTY}" in
true)
systemctl --runtime set-property ${NAME} ${BLOCK_IO_DEVICE_WEIGHT} ${BLOCK_IO_READ_BANDWIDTH} ${BLOCK_IO_WEIGHT} ${BLOCK_IO_WRITE_BANDWIDTH} ${CPU_QUOTA} ${CPU_SHARES} ${MEMORY_LIMIT} ${TASKS_MAX}
;;
esac
;;
*)
# Run
${SETARCH} systemd-nspawn --keep-unit ${BIND} ${BIND_RO} ${BOOT} ${CAPABILITY} ${DIRECTORY} ${DROP_CAPABILITY} ${MACHINE} ${NETWORK_VETH_EXTRA} ${LINK_JOURNAL} ${REGISTER}
# Post hooks
for FILE in "${HOOKS}/post-${COMMAND}".* "${HOOKS}/${NAME}.post-${COMMAND}"
do
if [ -x "${FILE}" ]
then
"${FILE}"
fi
done
;;
esac
|