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# |
# |
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# based on Tony Risinger post to lxc-users mailing list |
# based on Tony Risinger post to lxc-users mailing list |
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# http://www.mail-archive.com/lxc-users@lists.sourceforge.net/msg00074.html |
# http://www.mail-archive.com/lxc-users@lists.sourceforge.net/msg00074.html |
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# |
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# Install with: |
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# ln -sf /srv/sysadmin-cookbook/recepies/lxc/lxc-watchdog.sh /etc/init.d/lxc-watchdog |
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# update-rc.d lxc-watchdog defaults |
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which inotifywait >/dev/null || apt-get install inotify-tools |
which inotifywait >/dev/null || apt-get install inotify-tools |
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lxc_rootfs() { |
lxc_rootfs() { |
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grep lxc.rootfs "/var/lib/lxc/$1/config" | cut -d= -f2 | sed 's/^ *//' |
grep '^ *lxc\.rootfs *=' "/var/lib/lxc/$1/config" | cut -d= -f2 | sed 's/^ *//' |
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} |
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lxc_hostname() { |
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inside=`cat $(lxc_rootfs $1)/etc/hostname` |
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config=`grep lxc.utsname /var/lib/lxc/$name/config | cut -d= -f2` |
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echo "$config [$inside]"; |
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} |
} |
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49 |
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lxc_ip() { |
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( grep lxc.network.ipv4 /var/lib/lxc/$name/config | cut -d= -f2 || \ |
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grep address $(lxc_rootfs $name)/etc/network/interfaces | sed 's/.*address //' ) | \ |
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sed -e 's/ *//g' -e 's/\/.*$//' |
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} |
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lxc_status() { |
lxc_status() { |
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lxc-ls -1 | sort -u | xargs -i lxc-info -n {} | sed "s/'//g" | while read name is status ; do |
( find /var/lib/lxc/ -name "config" | cut -d/ -f5 | sort -u | xargs -i lxc-info -n {} | sed "s/'//g" | while read name is status ; do |
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on_boot=" " |
boot="-" |
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test -s /var/lib/lxc/$name/on_boot && on_boot="on_boot" |
test -s /var/lib/lxc/$name/on_boot && boot="boot" |
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echo "$name $status $on_boot $(lxc_rootfs $name)" |
echo "$name $status $boot $(lxc_rootfs $name) $(lxc_ip $name) $(lxc_hostname $name)" |
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done |
done ) | column -t |
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} |
} |
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$rootfs/etc/rc?.d/*umountfs \ |
$rootfs/etc/rc?.d/*umountfs \ |
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$rootfs/etc/rc?.d/*umountroot \ |
$rootfs/etc/rc?.d/*umountroot \ |
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$rootfs/etc/rc?.d/*hwclock* \ |
$rootfs/etc/rc?.d/*hwclock* \ |
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$rootfs/etc/rc?.d/*udev* \ |
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2>/dev/null | xargs -i rm -v {} |
2>/dev/null | xargs -i rm -v {} |
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echo $1 > $rootfs/etc/hostname |
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grep $1 $rootfs/etc/hosts || echo "$(lxc_ip $1) $1" >> $rootfs/etc/hosts |
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} |
} |
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# let container respond to kill -SIGPWR |
# let container respond to kill -SIGPWR |
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inittab=$rootfs/etc/inittab |
inittab=$rootfs/etc/inittab |
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if ! grep "$add" ${inittab} >/dev/null ; then |
if test -e $inittab && ! grep "$add" ${inittab} >/dev/null ; then |
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grep -v "$remove" ${inittab} > ${inittab}.new |
grep -v "$remove" ${inittab} > ${inittab}.new |
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echo $add >> ${inittab}.new |
echo $add >> ${inittab}.new |
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mv ${inittab}.new ${inittab} |
mv ${inittab}.new ${inittab} |
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} |
} |
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95 |
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lxc_log() { |
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echo `date +%Y-%m-%dT%H:%M:%S` $* |
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} |
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99 |
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lxc_kill() { |
lxc_kill() { |
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name=$1 |
name=$1 |
102 |
sig=$2 |
sig=$2 |
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lxc-info -n $name |
lxc-info -n $name |
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exit 1 |
exit 1 |
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fi |
fi |
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echo "$name kill $sig $init_pid" |
lxc_log "$name kill $sig $init_pid" |
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/bin/kill $sig $init_pid |
/bin/kill $sig $init_pid |
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} |
} |
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113 |
lxc_stop() { |
lxc_stop() { |
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lxc_log "$name stop" |
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lxc_kill $name -SIGPWR |
lxc_kill $name -SIGPWR |
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lxc-wait -n $name -s STOPPED |
lxc-wait -n $name -s STOPPED |
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lxc_log "$name stoped" |
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# rm -f /var/lib/lxc/${name}/on_boot |
# rm -f /var/lib/lxc/${name}/on_boot |
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} |
} |
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lxc_start() { |
lxc_start() { |
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name=$1 |
name=$1 |
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rootfs=$(lxc_rootfs $1) |
125 |
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126 |
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if [ ! -e $rootfs ] ; then |
127 |
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echo "ERROR $name rootfs $rootfs not found" |
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return |
129 |
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fi |
130 |
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if ! lxc-info -n $name | grep RUNNING ; then |
if ! lxc-info -n $name | grep RUNNING ; then |
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echo "$name start" |
lxc_log "$name start" |
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lxc-start -n $name -o /tmp/${name}.log -d |
lxc-start -n $name -o /tmp/${name}.log -d |
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lxc-wait -n $name -s RUNNING |
lxc-wait -n $name -s RUNNING |
135 |
lxc-info -n $name |
lxc-info -n $name |
137 |
fi |
fi |
138 |
} |
} |
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lxc_log() { |
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echo `date +%Y-%m-%dT%H:%M:%S` $* |
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} |
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lxc_watchdog() { |
lxc_watchdog() { |
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name=$1 |
name=$1 |
142 |
rootfs=$(lxc_rootfs $1) |
rootfs=$(lxc_rootfs $1) |
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inotifywait -qqt 300 ${vps_utmp} |
inotifywait -qqt 300 ${vps_utmp} |
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done |
done |
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lxc_log "$name exited" |
lxc_log "$name watchdog exited" |
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} |
} |
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187 |
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188 |
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usage() { |
189 |
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echo "Usage: $0 {start|stop|restart|status|boot|disable} [name name ... ]" >&2 |
190 |
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exit 3 |
191 |
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} |
192 |
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command_on_lxc() { |
command_on_lxc() { |
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command=$1 |
command=$1 |
195 |
shift |
shift |
201 |
start) |
start) |
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lxc_exists $1 |
lxc_exists $1 |
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cleanup_init_scripts $1 |
cleanup_init_scripts $1 |
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setup_inittab $1 ::power "p0::powerfail:/sbin/init 0" |
setup_inittab $1 ":respawn:/sbin/getty.*tty1" "c1:12345:respawn:/sbin/getty 38400 tty1 linux" |
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setup_inittab $1 ::ctrlaltdel "p6::ctrlaltdel:/sbin/init 6" |
setup_inittab $1 "::power" "p0::powerfail:/sbin/init 0" |
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setup_inittab $1 "::ctrlaltdel" "p6::ctrlaltdel:/sbin/init 6" |
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lxc_start $1 |
lxc_start $1 |
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# give container 5 seconds to start more than one process |
# give container 5 seconds to start more than one process |
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( sleep 5 ; nohup $0 watchdog $1 >> /tmp/$1.log 2>/dev/null ) & |
( sleep 5 ; nohup $0 watchdog $1 >> /tmp/$1.log 2>/dev/null ) & |
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watchdog) |
watchdog) |
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lxc_watchdog $1 |
lxc_watchdog $1 |
220 |
;; |
;; |
221 |
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boot) |
222 |
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echo $1 > /var/lib/lxc/$1/on_boot |
223 |
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;; |
224 |
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disable) |
225 |
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echo -n > /var/lib/lxc/$1/on_boot |
226 |
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;; |
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*) |
*) |
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echo "Usage: $0 {start|stop|restart|status}" >&2 |
usage |
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exit 3 |
|
229 |
;; |
;; |
230 |
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231 |
esac |
esac |
233 |
} |
} |
234 |
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235 |
command=$1 |
command=$1 |
236 |
shift |
test -z "$command" && usage |
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237 |
test "$command" = "status" && lxc_status && exit |
test "$command" = "status" && lxc_status && exit |
238 |
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shift |
239 |
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240 |
if [ -z "$1" ] ; then |
if [ -z "$1" ] ; then |
241 |
ls /var/lib/lxc/*/on_boot | while read path ; do |
ls /var/lib/lxc/*/on_boot | while read path ; do |
242 |
name=`echo $path | cut -d/ -f5` |
name=`echo $path | cut -d/ -f5` |
243 |
command_on_lxc $command $name |
if [ "$command" != "start" -o "$command" = "start" -a -s $path ] ; then |
244 |
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command_on_lxc $command $name |
245 |
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else |
246 |
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echo "# skip $command $name" |
247 |
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fi |
248 |
done |
done |
249 |
else |
else |
250 |
while [ ! -z "$1" ] ; do |
while [ ! -z "$1" ] ; do |