/etc/init.d/mon is in mon 1.2.0-8.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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#
### BEGIN INIT INFO
# Provides: mon
# Required-Start: $remote_fs $all
# Required-Stop: $remote_fs $syslog
# Should-Start: $local_fs
# Should-Stop: $local_fs
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: monitor hosts/services/whatever and alert about problems
# Description: "mon" is a tool for monitoring the availability of services. Services
# may be network-related, environmental conditions, or anything that can
# be tested with software. If a service is unavailable mon can tell you
# with syslog, email, your pager or a script of your choice. You can
# control who gets each alert based on the time of day or day of week,
# and you can control how often an existing problem is re-alerted.
### END INIT INFO
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
DAEMON=/usr/sbin/mon # Introduce the server's location here
NAME=mon
DESC="mon daemon"
LOGDIR=/var/log/mon # Log directory to use
PIDFILE=/var/run/mon/$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 server
DIETIME=1 # Time to wait for the server to die, in seconds
# If this value is set too low you might not
# let some servers to die gracefully and
# 'restart' will not work
STARTTIME=1 # Time to wait for the server to start, in seconds
# If this value is set each time the server is
# started (on start or restart) the script will
# stall to try to determine if it is running
# If it is not set and the server takes time
# to setup a pid file the log message might
# be a false positive (says it did not start
# when it actually did)
LOGFILE=$LOGDIR/$NAME.log # Server logfile
DAEMONUSER=mon # Users to run the daemons as. If this value
# is set start-stop-daemon will chuid the server
# Include defaults if available
if [ -f /etc/default/$NAME ] ; then
. /etc/default/$NAME
fi
# Check that the user exists (if we set a user)
# Does the user exist?
if [ -n "$DAEMONUSER" ] ; then
if getent passwd | grep -q "^$DAEMONUSER:"; then
# Obtain the uid and gid
DAEMONUID=`getent passwd |grep "^$DAEMONUSER:" | awk -F : '{print $3}'`
DAEMONGID=`getent passwd |grep "^$DAEMONUSER:" | awk -F : '{print $4}'`
else
log_failure_msg "The user $DAEMONUSER, required to run $NAME does not exist."
exit 1
fi
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/$pid ] && return 1
cmd=`cat /proc/$pid/cmdline | tr "\000" "\n"|head -n 1 |cut -d : -f 1`
# Is this the expected server
# [ "$cmd" != "/usr/bin/perl $name" ] && return 1
return 0
}
running() {
# Check if the process is running looking at /proc
# (works for all users)
# No pidfile, probably no daemon present
[ ! -f "$PIDFILE" ] && return 1
pid=`cat $PIDFILE`
running_pid $pid $DAEMON || return 1
return 0
}
start_server() {
# Start the process using the wrapper
#
# Create /var/run/mon if does not exists
#
if [ ! -d "/var/run/mon" ] ; then
mkdir -p /var/run/mon
chown mon:mon /var/run/mon
fi
start-stop-daemon --start --quiet --pidfile $PIDFILE \
--chuid $DAEMONUSER \
--startas $DAEMON \
-- $DAEMON_OPTS
errcode=$?
return $errcode
}
stop_server() {
# Stop the process using the wrapper
start-stop-daemon --stop --quiet --pidfile $PIDFILE \
--user $DAEMONUSER \
--exec /usr/bin/perl
errcode=$?
#
# Remove /var/run/mon when daemon is stopped
#
if [ -d /var/run/mon ] ; then
rmdir --ignore-fail-on-non-empty /var/run/mon
fi
return $errcode
}
reload_server() {
[ ! -f "$PIDFILE" ] && return 1
pid=pidofproc $PIDFILE # This is the daemon's pid
# Send a SIGHUP
kill -1 $pid
return $?
}
force_stop() {
# Force the process to die killing it manually
[ ! -e "$PIDFILE" ] && return
if running ; then
kill -15 $pid
# Is it really dead?
sleep "$DIETIME"s
if running ; then
kill -9 $pid
sleep "$DIETIME"s
if running ; then
echo "Cannot kill $NAME (pid=$pid)!"
exit 1
fi
fi
fi
rm -f $PIDFILE
}
check_directive() {
#
# Check directive status in /etc/default/mon
#
if [ $1 != "yes" ] &&
[ $1 != "true" ] &&
[ $1 != "1" ]
then
log_failure_msg "mon is disabled, set ENABLED to \"yes\", \"true\" or \"1\" in /etc/default/mon to enable it."
exit 0
fi
}
case "$1" in
start)
check_directive $ENABLED
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_server ; then
# NOTE: Some servers might die some time after they start,
# this code will detect this issue if STARTTIME is set
# to a reasonable value
[ -n "$STARTTIME" ] && sleep $STARTTIME # Wait some time
if running ; then
# It's ok, the server started and is running
log_end_msg 0
else
# It is not running after we did start
log_end_msg 1
fi
else
# Either we could not start it
log_end_msg 1
fi
;;
stop)
log_daemon_msg "Stopping $DESC" "$NAME"
if running ; then
# Only stop the server if we see it running
errcode=0
stop_server || errcode=$?
log_end_msg $errcode
else
# If it's not running don't do anything
log_progress_msg "apparently not running"
log_end_msg 0
exit 0
fi
;;
force-stop)
# First try to stop gracefully the program
$0 stop
if running; then
# If it's still running try to kill it more forcefully
log_daemon_msg "Stopping (force) $DESC" "$NAME"
errcode=0
force_stop || errcode=$?
log_end_msg $errcode
fi
;;
restart|force-reload)
check_directive $ENABLED
log_daemon_msg "Restarting $DESC" "$NAME"
errcode=0
stop_server || errcode=$?
# Wait some sensible amount, some server need this
[ -n "$DIETIME" ] && sleep $DIETIME
start_server || errcode=$?
[ -n "$STARTTIME" ] && sleep $STARTTIME
running || errcode=$?
log_end_msg $errcode
;;
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)."
;;
# And this if it cann
#reload)
#
# If the daemon can reload its config files on the fly
# for example by sending it SIGHUP, do it here.
#
# If the daemon responds to changes in its config file
# directly anyway, make this a do-nothing entry.
#
# log_daemon_msg "Reloading $DESC configuration files" "$NAME"
# if running ; then
# reload_server
# if ! running ; then
# Process died after we tried to reload
# log_progress_msg "died on reload"
# log_end_msg 1
# exit 1
# fi
# else
# log_progress_msg "server is not running"
# log_end_msg 1
# exit 1
# fi
#;;
*)
N=/etc/init.d/$NAME
echo "Usage: $N {start|stop|force-stop|restart|force-reload|status}" >&2
exit 1
;;
esac
exit 0
|