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|
#!/bin/sh
#
# Example init.d script with LSB support.
#
# Please read this init.d carefully and modify the sections to
# adjust it to the program you want to run.
#
# Copyright (c) 2007, 2009 Javier Fernandez-Sanguino <jfs@debian.org>
#
# This is free software; you may redistribute it and/or modify
# it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2,
# or (at your option) any later version.
#
# This 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 with
# the Debian operating system, in /usr/share/common-licenses/GPL; if
# not, write to the Free Software Foundation, Inc., 59 Temple Place,
# Suite 330, Boston, MA 02111-1307 USA
#
### BEGIN INIT INFO
# Provides: openvswitch-wdt
# Required-Start: $network $local_fs
# Required-Stop:
# Should-Start: $named $syslog openvswitch-switch
# Should-Stop:
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Open vSwitch switch watchdog
### END INIT INFO
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
DAEMON=/usr/sbin/ovs-wdt
NAME=openvswitch-wdt
DESC="Open vSwitch switch watchdog"
PIDFILE=/var/run/$NAME.pid
test -x $DAEMON || exit 0
. /lib/lsb/init-functions
# Default options, these can be overriden by the information
# at /etc/default/$NAME
DAEMON_OPTS="" # Additional options given to the daemon
DODTIME=10 # Time to wait for the daemon to die, in seconds
# If this value is set too low you might not
# let some daemons to die gracefully and
# 'restart' will not work
# Include defaults if available
if [ -f /etc/default/$NAME ] ; then
. /etc/default/$NAME
fi
set -e
running_pid() {
# Check if a given process pid's cmdline matches a given name
pid=$1
name=$2
[ -z "$pid" ] && return 1
[ ! -d /proc/$pid ] && return 1
return 0
}
running() {
# Check if the process is running looking at /proc
# (works for all users)
# No pidfile, probably no daemon present
[ ! -f "$PIDFILE" ] && return 1
pid=`cat $PIDFILE`
running_pid $pid $DAEMON || return 1
return 0
}
start_daemon() {
# Start the process using the wrapper
if test $WDT_TIMEOUT != 0; then
start-stop-daemon --start --quiet -m --background --pidfile $PIDFILE \
--exec $DAEMON -- --timeout=$WDT_TIMEOUT --interval=$WDT_INTERVAL $DAEMON_OPTS
fi
# Wait up to 3 seconds for the daemon to start.
for i in 1 2 3; do
if running; then
break
fi
sleep 1
done
echo $OOPS_REBOOT_TIME > /proc/sys/kernel/panic
echo 1 > /proc/sys/kernel/panic_on_oops
}
stop_daemon() {
start-stop-daemon -o --stop --pidfile $PIDFILE
rm $PIDFILE
}
case "$1" in
start)
log_daemon_msg "Starting $DESC " "$NAME"
# Check if it's running first
if running ; then
log_progress_msg "apparently already running"
log_end_msg 0
exit 0
fi
if start_daemon && running ; then
# It's ok, the daemon started and is running
log_end_msg 0
else
# Either we could not start it or it is not running
# after we did
# NOTE: Some daemons might die some time after they start,
# this code does not try to detect this and might give
# a false positive (use 'status' for that)
log_end_msg 1
fi
;;
stop)
log_daemon_msg "Stopping $DESC" "$NAME"
if running ; then
# Only stop the daemon if we see it running
stop_daemon
log_end_msg $?
else
# If it's not running don't do anything
log_progress_msg "apparently not running"
log_end_msg 0
exit 0
fi
;;
restart|force-reload)
log_daemon_msg "Restarting $DESC" "$NAME"
if running ; then
stop_daemon
# Wait some sensible amount, some daemons need this
[ -n "$DIETIME" ] && sleep $DIETIME
fi
start_daemon
running
log_end_msg $?
;;
status)
log_daemon_msg "Checking status of $DESC" "$NAME"
if running ; then
log_progress_msg "running"
log_end_msg 0
else
log_progress_msg "apparently not running"
log_end_msg 1
exit 1
fi
;;
# Use this if the daemon cannot reload
reload)
log_warning_msg "Reloading $NAME daemon: not implemented, as the daemon"
log_warning_msg "cannot re-read the config file (use restart)."
;;
*)
N=/etc/init.d/$NAME
echo "Usage: $N {start|stop|restart|force-reload|status}" >&2
exit 1
;;
esac
exit 0
|
