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|
#!/bin/sh
# container-tools - Manage systemd-nspawn containers
# Copyright (C) 2014-2016 Daniel Baumann <daniel.baumann@open-infrastructure.net>
#
# 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 ${0})"
MACHINES="/var/lib/machines"
Parameters ()
{
GETOPT_LONGOPTIONS="name:,blockio-device-weight:,blockio-read-bandwith:,blockio-weight:,blockio-write-bandwith:,cpu-quota:,cpu-shares:,memory-limit:,tasks-max:,"
GETOPT_OPTIONS="n:b:c:m:t:,"
PARAMETERS="$(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
;;
-c|--cpu-quota)
CPU_QUOTA="${2}"
shift 2
;;
--cpu-shares)
CPU_SHARES="${2}"
shift 2
;;
-m|--memory-limit)
MEMORY_LIMIT="${2}"
shift 2
;;
-t|--tasks-max)
TASKS_MAX="${2}"
shift 2
;;
--blockio-device-weight)
BLOCK_IO_DEVICE_WEIGHT="${2}"
shift 2
;;
--blockio-read-bandwith)
BLOCK_IO_READ_BANDWITH="${2}"
shift 2
;;
-b|--blockio-weight)
BLOCK_IO_WEIGHT="${2}"
shift 2
;;
--blockio-write-bandwith)
BLOCK_IO_WRITE_BANDWITH="${2}"
shift 2
;;
--)
shift 1
break
;;
*)
echo "'${COMMAND}': getopt error" >&2
exit 1
;;
esac
done
}
Usage ()
{
echo "Usage: container ${COMMAND} -n|--name NAME [--blockio-device-weight \"DEVICE WEIGHT\"] [--blockio-read-bandwith \"DEVICE BYTES\"] [-b|--blockio-weight WEIGHT] [--blockio-write-bandwith \"DEVICE BYTES\"] [-c|--cpu-quota QUOTA] [--cpu-shares SHARES] [-m|--memory-limit BYTES] [-t|--tasks-max NUMBER]" >&2
exit 1
}
Parameters "${@}"
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 -F= '/^State=/ { print $2 }')"
case "${STATE}" in
running)
;;
*)
echo "'${NAME}': container is not running" >&2
exit 1
;;
esac
if [ -n "${BLOCK_IO_DEVICE_WEIGHT}" ]
then
BLOCK_IO_DEVICE_WEIGHT="BlockIODeviceWeight=${BLOCK_IO_DEVICE_WEIGHT}"
SET_PROPERTY="true"
fi
if [ -n "${BLOCK_IO_READ_BANDWITH}" ]
then
BLOCK_IO_READ_BANDWITH="BlockIOReadBandwidth=${BLOCK_IO_READ_BANDWITH}"
SET_PROPERTY="true"
fi
if [ -n "${BLOCK_IO_WEIGHT}" ]
then
BLOCK_IO_WEIGHT="BlockIOWeight=${BLOCK_IO_WEIGHT}"
SET_PROPERTY="true"
fi
if [ -n "${BLOCK_IO_WRITE_BANDWITH}" ]
then
BLOCK_IO_WRITE_BANDWITH="BlockIOReadBandwidth=${BLOCK_IO_WRITE_BANDWITH}"
SET_PROPERTY="true"
fi
if [ -n "${CPU_QUOTA}" ]
then
CPU_QUOTA="CPUQuota=${CPU_QUOTA}"
SET_PROPERTY="true"
fi
if [ -n "${CPU_SHARES}" ]
then
CPU_SHARES="CPUShares=${CPU_SHARES}"
SET_PROPERTY="true"
fi
if [ -n "${MEMORY_LIMIT}" ]
then
MEMORY_LIMIT="MemoryLimit=${MEMORY_LIMIT}"
SET_PROPERTY="true"
fi
if [ -n "${TASKS_MAX}" ]
then
TASKS_MAX="TasksMax=${TASKS_MAX}"
SET_PROPERTY="true"
fi
if [ "${SET_PROPERTY}" != "true" ]
then
Usage
fi
# Run
systemctl --runtime set-property ${NAME} ${BLOCK_IO_DEVICE_WEIGHT} ${BLOCK_IO_READ_BANDWITH} ${BLOCK_IO_WEIGHT} ${BLOCK_IO_WRITE_BANDWITH} ${CPU_QUOTA} ${CPU_SHARES} ${MEMORY_LIMIT} ${TASKS_MAX}
|
