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4199da3061
The previous lxc-shutdown change replaced 'kill SIG<name>' by 'kill -s SIG<name>'. Although this works with busybox where it was tested, this doesn't actually work with all kill implementations. Some requiring just the signal name without the prefix. This changes "-s SIG<name>" by just "-s <name>". Tested with busybox and standard kill. Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
148 lines
2.9 KiB
Bash
148 lines
2.9 KiB
Bash
#!/bin/sh
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# (C) Copyright Canonical 2011,2012
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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set -e
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usage() {
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echo "usage: lxc-shutdown -n name [-w] [-r]"
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echo " Cleanly shut down a container."
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echo " -w: wait for shutdown to complete."
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echo " -r: reboot (ignore -w)."
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echo " -t timeout: wait at most timeout seconds (implies -w), then kill"
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echo " the container."
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}
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alarm() {
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pid=$1
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timeout=$2
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sleep $timeout
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kill $pid
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}
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dolxcstop()
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{
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echo "Calling lxc-stop on $lxc_name"
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lxc-stop -n $lxc_name
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exit 0
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}
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usage_err() {
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[ -n "$1" ] && echo "$1" >&2
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usage
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exit 1
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}
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optarg_check() {
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[ -n "$2" ] || usage_err "option '$1' requires an argument"
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}
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timeout="-1"
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reboot=0
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dowait=0
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while [ $# -gt 0 ]; do
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opt="$1"
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shift
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case "$opt" in
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-h|--help)
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usage
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;;
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-n|--name)
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optarg_check $opt "$1"
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lxc_name=$1
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shift
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;;
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-w|--wait)
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dowait=1
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shift
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;;
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-r|--reboot)
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reboot=1
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shift
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;;
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-t|--timeout)
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optarg_check $opt "$1"
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timeout=$1
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dowait=1
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shift
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;;
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--)
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break;;
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-?)
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usage_err "unknown option '$opt'"
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;;
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-*)
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# split opts -abc into -a -b -c
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set -- $(echo "${opt#-}" | sed 's/\(.\)/ -\1/g') "$@"
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;;
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*)
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usage_err "unknown option '$opt'"
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exit 1
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esac
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done
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if [ -z "$lxc_name" ]; then
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echo "no container name specified"
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usage
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exit 1
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fi
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if [ "$(id -u)" != "0" ]; then
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echo "This command has to be run as root"
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exit 1
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fi
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which lxc-info > /dev/null || { echo "lxc-info not found."; exit 1; }
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which lxc-wait > /dev/null || { echo "lxc-wait not found."; exit 1; }
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pid=`lxc-info -n $lxc_name -p 2>/dev/null | awk '{ print $2 }'`
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if [ "$pid" = "-1" ]; then
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echo "$lxc_name is not running"
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exit 1
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fi
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if [ $reboot -eq 1 ]; then
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kill -s INT $pid
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exit 0
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else
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kill -s PWR $pid
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fi
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if [ $dowait -eq 0 ]; then
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exit 0
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fi
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if [ $timeout != "-1" ]; then
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trap dolxcstop EXIT
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alarm $$ $timeout &
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alarmpid=$!
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fi
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while ! lxc-info -n $lxc_name --state-is STOPPED; do
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sleep 1
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done
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if [ $timeout != "-1" ]; then
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kill $alarmpid
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fi
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echo "Container $lxc_name has shut down"
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exit 0
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