I rewrote my init script, too, and now I'm pretty happy. Example
interactions below. In the second case, I've dialled the timeout down
to 2s to simulate hung containers.
r...@omega:~# /etc/init.d/lxc restart
Stopping LXC containers: krb-client failed!
Killing LXC containers: kdc ldap.
Starting LXC containers: kdc krb-client ldap.
r...@omega:~# /etc/init.d/lxc restart
Stopping LXC containers: krb-client kdc ldap.
Starting LXC containers: kdc krb-client ldap.
r...@omega:~# /etc/init.d/lxc status
'kdc' is RUNNING
'krb-client' is RUNNING
'ldap' is RUNNING
r...@omega:~#
This uses -INT to signal to the container, so it assumes that containers
are upstart-based and have s/shutdown -r/shutdown -r/ in
/etc/init/control-alt-delete.conf (which is what -INT triggers).
I tried -PWR as was suggested upthread from SuSE, but that appears to be
ignored by upstart (sigh).
#!/bin/bash
# lxc containers starter script
# based on skeleton from Debian GNU/Linux
### BEGIN INIT INFO
# Provides: lxc
# Required-Start: $syslog $remote_fs
# Required-Stop: $syslog $remote_fs
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Linux Containers
# Description: Linux Containers
### END INIT INFO
NAME=lxc
PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin
DESC="LXC containers"
SCRIPTNAME="/etc/init.d/lxc"
. /lib/lsb/init-functions
if [ -f /etc/default/$NAME ] ; then
. /etc/default/$NAME
fi
if [ "x$RUN" != "xyes" ] ; then
log_success_msg "$NAME init script disabled; edit /etc/default/$NAME"
exit 0
fi
shopt -s nullglob
case "$1" in
start)
log_daemon_msg "Starting $DESC"
for name in $ROOT_DIR/*/forceboot
do name=${name%/forceboot}
name=${name#$ROOT_DIR/}
# Skip it if it doesn't have an RFC952 hostname (e.g. no fooserv.~1~'s)
[[ $name =~ ^[[:alnum:]]([[:alnum:]-]{0,61}[[:alnum:]])?$ ]] || continue
lxc-start -n $name -f $CONF_DIR/$name.conf -d
log_progress_msg $name
done
log_end_msg 0
;;
stop)
log_daemon_msg "Stopping $DESC"
pkill -INT lxc-start # Sends a ctrl-alt-del to containers' upstarts.
i=300 # Begin a spinlock, capped at five minutes.
while
then=$now now=$(lxc-ls | sort)
# Print the lines that have disappeared since the previous iteration.
for name in $(comm -23 <(cat <<<"$then") <(cat <<<"$now"))
do log_progress_msg $name
done
[[ -n "$now" ]] && ((i--))
do sleep 1
done
if [[ -z "$now" ]]
then log_end_msg 0
else log_end_msg 1
log_daemon_msg "Killing $DESC"
for name in $now
do lxc-stop -n $name
log_progress_msg $name
done
log_end_msg 0
fi
;;
restart|force-reload)
"$0" stop
"$0" start
;;
status)
for name in $ROOT_DIR/*/forceboot
do name=${name%/forceboot}
name=${name#$ROOT_DIR/}
# Skip it if it doesn't have an RFC952 hostname (e.g. no fooserv.~1~'s)
[[ $name =~ ^[[:alnum:]]([[:alnum:]-]{0,61}[[:alnum:]])?$ ]] || continue
lxc-info -n $name
done
;;
*)
log_success_msg "Usage: $SCRIPTNAME {start|stop|force-reload|restart|status}"
exit 1
;;
esac
exit 0
------------------------------------------------------------------------------
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