mirror_corosync/init/generic.in
Jan Friesse fbbb3f01cb Handle "nocluster" kernel parameter in init script
Init script checks kernel parameters and refuses to start corosync if
nocluster parameter exist on boot time. The init script will
continue to work as expected from console/tty after boot.

Signed-off-by: Jan Friesse <jfriesse@redhat.com>
Reviewed-by: Steven Dake <sdake@redhat.com>
2011-01-31 14:27:36 +01:00

185 lines
3.4 KiB
Bash
Executable File

#!/bin/bash
# Authors:
# Andrew Beekhof <abeekhof@redhat.com>
# Fabio M. Di Nitto <fdinitto@redhat.com>
#
# License: Revised BSD
# chkconfig: - 20 80
# description: Corosync Cluster Engine
# processname: corosync
#
### BEGIN INIT INFO
# Provides: corosync
# Required-Start: $network $syslog
# Required-Stop: $network $syslog
# Default-Start:
# Default-Stop:
# Short-Description: Starts and stops Corosync Cluster Engine.
# Description: Starts and stops Corosync Cluster Engine.
### END INIT INFO
desc="Corosync Cluster Engine"
prog="corosync"
# set secure PATH
PATH="/sbin:/bin:/usr/sbin:/usr/bin:@SBINDIR@"
success()
{
echo -ne "[ OK ]\r"
}
failure()
{
echo -ne "[FAILED]\r"
}
status()
{
pid=$(pidof $1 2>/dev/null)
rtrn=$?
if [ $rtrn -ne 0 ]; then
echo "$1 is stopped"
else
echo "$1 (pid $pid) is running..."
fi
return $rtrn
}
# rpm based distros
if [ -d @SYSCONFDIR@/sysconfig ]; then
[ -f @INITDDIR@/functions ] && . @INITDDIR@/functions
[ -f @SYSCONFDIR@/sysconfig/$prog ] && . @SYSCONFDIR@/sysconfig/$prog
[ -z "$LOCK_FILE" ] && LOCK_FILE="@LOCALSTATEDIR@/lock/subsys/$prog"
fi
# deb based distros
if [ -d @SYSCONFDIR@/default ]; then
[ -f @SYSCONFDIR@/default/$prog ] && . @SYSCONFDIR@/default/$prog
[ -z "$LOCK_FILE" ] && LOCK_FILE="@LOCALSTATEDIR@/lock/$prog"
fi
# The version of __pids_pidof in /etc/init.d/functions calls pidof with -x
# This means it matches scripts, including this one.
# Redefine it here so that status (from the same file) works.
# Otherwise simultaneous calls to stop() will loop forever
__pids_pidof() {
pidof -c -o $$ -o $PPID -o %PPID "$1" || \
pidof -c -o $$ -o $PPID -o %PPID "${1##*/}"
}
cluster_disabled_at_boot()
{
if grep -q nocluster /proc/cmdline && \
[ "$(tty)" = "/dev/console" ]; then
echo -e "not configured to run at boot"
failure
return 1
fi
return 0
}
start()
{
echo -n "Starting $desc ($prog): "
! cluster_disabled_at_boot && return
# most recent distributions use tmpfs for @LOCALSTATEDIR@/run
# to avoid to clean it up on every boot.
# they also assume that init scripts will create
# required subdirectories for proper operations
mkdir -p @LOCALSTATEDIR@/run
if status $prog > /dev/null 2>&1; then
success
else
$prog > /dev/null 2>&1
# give it time to fail
sleep 2
if status $prog > /dev/null 2>&1; then
touch $LOCK_FILE
success
else
failure
rtrn=1
fi
fi
echo
}
executed_by_cman()
{
[ -f @LOCALSTATEDIR@/run/cman.pid ] || return 0
read cman_pid foo < @LOCALSTATEDIR@/run/cman.pid
if [ "$(pidof $prog)" == "$cman_pid" ];then
echo -n "$desc was executed by cman"
failure
echo
return 1
fi
return 0
}
stop()
{
! status $prog > /dev/null 2>&1 && return
! executed_by_cman && return
echo -n "Signaling $desc ($prog) to terminate: "
kill -TERM $(pidof $prog) > /dev/null 2>&1
success
echo
echo -n "Waiting for $prog services to unload:"
while status $prog > /dev/null 2>&1; do
sleep 1
echo -n "."
done
rm -f $LOCK_FILE
success
echo
}
restart()
{
stop
start
}
rtrn=0
case "$1" in
start)
start
;;
restart|reload|force-reload)
restart
;;
condrestart|try-restart)
if status $prog > /dev/null 2>&1; then
restart
fi
;;
status)
status $prog
rtrn=$?
;;
stop)
stop
;;
*)
echo "usage: $0 {start|stop|restart|reload|force-reload|condrestart|try-restart|status}"
rtrn=2
;;
esac
exit $rtrn