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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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24 |
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25 |
which inotifywait >/dev/null || apt-get install inotify-tools |
which inotifywait >/dev/null || apt-get install inotify-tools |
37 |
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38 |
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39 |
lxc_rootfs() { |
lxc_rootfs() { |
40 |
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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43 |
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lxc_status() { |
lxc_status() { |
45 |
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 |
46 |
boot=" " |
boot="-" |
47 |
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hostname=`cat $(lxc_rootfs $name)/etc/hostname` |
48 |
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ip=`grep address $(lxc_rootfs $name)/etc/network/interfaces | sed 's/.*address //'` |
49 |
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test -z "$ip" && ip=`grep lxc.network.ipv4 /var/lib/lxc/narada/config | cut -d= -f2` |
50 |
test -s /var/lib/lxc/$name/on_boot && boot="boot" |
test -s /var/lib/lxc/$name/on_boot && boot="boot" |
51 |
echo "$name $status $boot $(lxc_rootfs $name)" |
echo "$name $status $boot $(lxc_rootfs $name) $ip $hostname" |
52 |
done |
done ) | column -t |
53 |
} |
} |
54 |
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55 |
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60 |
$rootfs/etc/rc?.d/*umountfs \ |
$rootfs/etc/rc?.d/*umountfs \ |
61 |
$rootfs/etc/rc?.d/*umountroot \ |
$rootfs/etc/rc?.d/*umountroot \ |
62 |
$rootfs/etc/rc?.d/*hwclock* \ |
$rootfs/etc/rc?.d/*hwclock* \ |
63 |
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$rootfs/etc/rc?.d/*udev* \ |
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2>/dev/null | xargs -i rm -v {} |
2>/dev/null | xargs -i rm -v {} |
65 |
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66 |
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echo $1 > $rootfs/etc/hostname |
67 |
} |
} |
68 |
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69 |
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74 |
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# let container respond to kill -SIGPWR |
# let container respond to kill -SIGPWR |
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inittab=$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 |
80 |
mv ${inittab}.new ${inittab} |
mv ${inittab}.new ${inittab} |
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113 |
lxc_start() { |
lxc_start() { |
114 |
name=$1 |
name=$1 |
115 |
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rootfs=$(lxc_rootfs $1) |
116 |
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117 |
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if [ ! -e $rootfs ] ; then |
118 |
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echo "ERROR $name rootfs $rootfs not found" |
119 |
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return |
120 |
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fi |
121 |
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122 |
if ! lxc-info -n $name | grep RUNNING ; then |
if ! lxc-info -n $name | grep RUNNING ; then |
123 |
lxc_log "$name start" |
lxc_log "$name start" |
176 |
} |
} |
177 |
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178 |
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179 |
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usage() { |
180 |
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echo "Usage: $0 {start|stop|restart|status|boot|disable} [name name ... ]" >&2 |
181 |
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exit 3 |
182 |
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} |
183 |
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184 |
command_on_lxc() { |
command_on_lxc() { |
185 |
command=$1 |
command=$1 |
186 |
shift |
shift |
192 |
start) |
start) |
193 |
lxc_exists $1 |
lxc_exists $1 |
194 |
cleanup_init_scripts $1 |
cleanup_init_scripts $1 |
195 |
setup_inittab $1 ::power "p0::powerfail:/sbin/init 0" |
setup_inittab $1 ":respawn:/sbin/getty.*tty1" "c1:12345:respawn:/sbin/getty 38400 tty1 linux" |
196 |
setup_inittab $1 ::ctrlaltdel "p6::ctrlaltdel:/sbin/init 6" |
setup_inittab $1 "::power" "p0::powerfail:/sbin/init 0" |
197 |
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setup_inittab $1 "::ctrlaltdel" "p6::ctrlaltdel:/sbin/init 6" |
198 |
lxc_start $1 |
lxc_start $1 |
199 |
# give container 5 seconds to start more than one process |
# give container 5 seconds to start more than one process |
200 |
( sleep 5 ; nohup $0 watchdog $1 >> /tmp/$1.log 2>/dev/null ) & |
( sleep 5 ; nohup $0 watchdog $1 >> /tmp/$1.log 2>/dev/null ) & |
216 |
echo -n > /var/lib/lxc/$1/on_boot |
echo -n > /var/lib/lxc/$1/on_boot |
217 |
;; |
;; |
218 |
*) |
*) |
219 |
echo "Usage: $0 {start|stop|restart|status}" >&2 |
usage |
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exit 3 |
|
220 |
;; |
;; |
221 |
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222 |
esac |
esac |
224 |
} |
} |
225 |
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226 |
command=$1 |
command=$1 |
227 |
shift |
test -z "$command" && usage |
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228 |
test "$command" = "status" && lxc_status && exit |
test "$command" = "status" && lxc_status && exit |
229 |
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shift |
230 |
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231 |
if [ -z "$1" ] ; then |
if [ -z "$1" ] ; then |
232 |
ls /var/lib/lxc/*/on_boot | while read path ; do |
ls /var/lib/lxc/*/on_boot | while read path ; do |