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Forked from lifeeth/selenium.sh
Created April 29, 2011 14:30
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selenium init.d script for debian
#!/bin/bash
# /etc/init.d/selenium
# debian-compatible selenium-grid startup script.
# Based on jenkins startups
# Praneeth Bodduluri <lifeeth[at]gmail.com>
# update-rc.d -n -f selenium start 90 2 3 4 5 . stop 10 0 1 6 .
### BEGIN INIT INFO
# Provides: selenium-grid
# Required-Start: $remote_fs $syslog $network
# Required-Stop: $remote_fs $syslog $network
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Start selenium at boot time
# Description: Controls selenium grid.
### END INIT INFO
PATH=/bin:/usr/bin:/sbin:/usr/sbin
DESC="Selenium Grid Hub"
NAME=selenium
SCRIPTNAME=/etc/init.d/$NAME
LOG=/var/log/selenium/selenium.log
ERRORLOG=/var/log/selenium/selenium.error.log
HOME=/home/selenium
PIDFILE=/var/run/selenium/selenium.pid
DAEMON=/usr/bin/daemon
DAEMON_ARGS="--name=$NAME --inherit --pidfile=$PIDFILE --output=$LOG --stdout=$LOG --stderr=$ERRORLOG --chdir=$HOME"
SELENIUM_USER=selenium
SU=/bin/su
# Exit if the package is not installed
[ -x "$DAEMON" ] || exit 0
# Exit if not supposed to run standalone
[ "$RUN_STANDALONE" = "false" ] && exit 0
# load environments
if [ -r /etc/default/locale ]; then
. /etc/default/locale
export LANG LANGUAGE
elif [ -r /etc/environment ]; then
. /etc/environment
export LANG LANGUAGE
fi
# Load the VERBOSE setting and other rcS variables
. /lib/init/vars.sh
# Define LSB log_* functions.
# Depend on lsb-base (>= 3.0-6) to ensure that this file is present.
. /lib/lsb/init-functions
# Make sure we run as root, since setting the max open files through
# ulimit requires root access
if [ `id -u` -ne 0 ]; then
echo "The $NAME init script can only be run as root"
exit 1
fi
check_tcp_port() {
local service=$1
local assigned=$2
local default=$3
if [ -n "$assigned" ]; then
port=$assigned
else
port=$default
fi
count=`netstat --listen --numeric-ports | grep \:$port | grep -c . `
if [ $count -ne 0 ]; then
echo "The selected $service port ($port) seems to be in use by another program "
echo "Please select another port to use for $NAME"
return 1
fi
}
#
# Function that starts the daemon/service
#
do_start()
{
# the default location is /var/run/selenium/selenium.pid but the parent directory needs to be created
mkdir `dirname $PIDFILE` > /dev/null 2>&1 || true
chown $SELENIUM_USER `dirname $PIDFILE`
mkdir `dirname $LOG` > /dev/null 2>&1 || true
chown $SELENIUM_USER `dirname $LOG`
mkdir `dirname $ERRORLOG` > /dev/null 2>&1 || true
chown $SELENIUM_USER `dirname $ERRORLOG`
# Return
# 0 if daemon has been started
# 1 if daemon was already running
# 2 if daemon could not be started
$DAEMON $DAEMON_ARGS --running && return 1
# Verify that the selenium port is not already in use, winstone does not exit
# even for BindException
check_tcp_port "http" "$HTTP_PORT" "4444" || return 1
# --user in daemon doesn't prepare environment variables like HOME, USER, LOGNAME or USERNAME,
# so we let su do so for us now
$SU -l $SELENIUM_USER --shell=/bin/bash -c "$DAEMON $DAEMON_ARGS -- ant launch-hub" || return 2
}
#
# Verify that all jenkins processes have been shutdown
# and if not, then do killall for them
#
get_running()
{
return `ps -U $SELENIUM_USER --no-headers -f | egrep -e '(java|daemon)' | grep -c . `
}
force_stop()
{
get_running
if [ $? -ne 0 ]; then
killall -u $SELENIUM_USER java daemon || return 3
fi
}
# Get the status of the daemon process
get_daemon_status()
{
$DAEMON $DAEMON_ARGS --running || return 1
}
#
# Function that stops the daemon/service
#
do_stop()
{
# Return
# 0 if daemon has been stopped
# 1 if daemon was already stopped
# 2 if daemon could not be stopped
# other if a failure occurred
get_daemon_status
case "$?" in
0)
$DAEMON $DAEMON_ARGS --stop || return 2
# wait for the process to really terminate
while true;
do
sleep 1
$DAEMON $DAEMON_ARGS --running || break
done
;;
*)
force_stop || return 3
;;
esac
# Many daemons don't delete their pidfiles when they exit.
rm -f $PIDFILE
return 0
}
case "$1" in
start)
log_daemon_msg "Starting $DESC" "$NAME"
do_start
case "$?" in
0|1) log_end_msg 0 ;;
2) log_end_msg 1 ;;
esac
;;
stop)
log_daemon_msg "Stopping $DESC" "$NAME"
do_stop
case "$?" in
0|1) log_end_msg 0 ;;
2) log_end_msg 1 ;;
esac
;;
restart|force-reload)
#
# If the "reload" option is implemented then remove the
# 'force-reload' alias
#
log_daemon_msg "Restarting $DESC" "$NAME"
do_stop
case "$?" in
0|1)
do_start
case "$?" in
0) log_end_msg 0 ;;
1) log_end_msg 1 ;; # Old process is still running
*) log_end_msg 1 ;; # Failed to start
esac
;;
*)
# Failed to stop
log_end_msg 1
;;
esac
;;
status)
get_daemon_status
case "$?" in
0) echo "Selenium Grid is running with the pid `cat $PIDFILE`";;
*)
get_running
procs=$?
if [ $procs -eq 0 ]; then
echo -n "Selenium Grid is not running"
if [ -f $PIDFILE ]; then
echo ", but the pidfile ($PIDFILE) still exists"
else
echo
fi
else
echo "$procs instances of jenkins are running at the moment"
echo "but the pidfile $PIDFILE is missing"
fi
;;
esac
;;
*)
echo "Usage: $SCRIPTNAME {start|stop|status|restart|force-reload}" >&2
exit 3
;;
esac
exit 0
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