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#! /bin/bash
. /lib/lsb/init-functions
#------------------------------------------------------------------------------
# Consts
#------------------------------------------------------------------------------
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/sbin/
DAEMON=/usr/sbin/nginx
PS="nginx"
PIDNAME="nginx" #lets you do $PS-slave
PIDFILE=$PIDNAME.pid #pid file
PIDSPATH=/var/run
DESCRIPTION="Nginx Server version 1.10.1"
RUNAS=root #user to run as
SCRIPT_OK=0 #ala error codes
SCRIPT_ERROR=1 #ala error codes
TRUE=1 #boolean
FALSE=0 #boolean
lockfile=/var/lock/subsys/nginx
NGINX_CONF_FILE="/etc/nginx/nginx.conf"
#------------------------------------------------------------------------------
# Simple Tests
#------------------------------------------------------------------------------
#test if nginx is a file and executable
test -x $DAEMON || exit 0
# Include nginx defaults if available
if [ -f /etc/default/nginx ] ; then
. /etc/default/nginx
fi
#set exit condition
#set -e
#------------------------------------------------------------------------------
# Functions
#------------------------------------------------------------------------------
setFilePerms(){
if [ -f $PIDSPATH/$PIDFILE ]; then
chmod 400 $PIDSPATH/$PIDFILE
fi
}
configtest() {
$DAEMON -t -c $NGINX_CONF_FILE
}
getPSCount() {
return `pgrep -f $PS | wc -l`
}
isRunning() {
if [ $1 ]; then
pidof_daemon $1
PID=$?
if [ $PID -gt 0 ]; then
return 1
else
return 0
fi
else
pidof_daemon
PID=$?
if [ $PID -gt 0 ]; then
return 1
else
return 0
fi
fi
}
#courtesy of php-fpm
wait_for_pid () {
try=0
while test $try -lt 35 ; do
case "$1" in
'created')
if [ -f "$2" ] ; then
try=''
break
fi
;;
'removed')
if [ ! -f "$2" ] ; then
try=''
break
fi
;;
esac
#echo -n .
try=`expr $try + 1`
sleep 1
done
}
status(){
isRunning
isAlive=$?
if [ "${isAlive}" -eq $TRUE ]; then
echo "$PIDNAME found running with processes: `pidof $PS`"
else
echo "$PIDNAME is NOT running."
fi
}
removePIDFile(){
if [ $1 ]; then
if [ -f $1 ]; then
rm -f $1
fi
else
#Do default removal
if [ -f $PIDSPATH/$PIDFILE ]; then
rm -f $PIDSPATH/$PIDFILE
fi
fi
}
start() {
log_daemon_msg "Starting $DESCRIPTION"
isRunning
isAlive=$?
if [ "${isAlive}" -eq $TRUE ]; then
log_end_msg $SCRIPT_ERROR
else
start-stop-daemon --start --quiet --chuid $RUNAS --pidfile $PIDSPATH/$PIDFILE --exec $DAEMON \
-- -c $NGINX_CONF_FILE
setFilePerms
log_end_msg $SCRIPT_OK
fi
}
stop() {
log_daemon_msg "Stopping $DESCRIPTION"
isRunning
isAlive=$?
if [ "${isAlive}" -eq $TRUE ]; then
start-stop-daemon --stop --quiet --pidfile $PIDSPATH/$PIDFILE
wait_for_pid 'removed' $PIDSPATH/$PIDFILE
if [ -n "$try" ] ; then
log_end_msg $SCRIPT_ERROR
else
removePIDFile
log_end_msg $SCRIPT_OK
fi
else
log_end_msg $SCRIPT_ERROR
fi
}
reload() {
configtest || return $?
log_daemon_msg "Reloading (via HUP) $DESCRIPTION"
isRunning
if [ $? -eq $TRUE ]; then
`killall -HUP $PS` #to be safe
log_end_msg $SCRIPT_OK
else
log_end_msg $SCRIPT_ERROR
fi
}
quietupgrade() {
log_daemon_msg "Peforming Quiet Upgrade $DESCRIPTION"
isRunning
isAlive=$?
if [ "${isAlive}" -eq $TRUE ]; then
kill -USR2 `cat $PIDSPATH/$PIDFILE`
kill -WINCH `cat $PIDSPATH/$PIDFILE.oldbin`
isRunning
isAlive=$?
if [ "${isAlive}" -eq $TRUE ]; then
kill -QUIT `cat $PIDSPATH/$PIDFILE.oldbin`
wait_for_pid 'removed' $PIDSPATH/$PIDFILE.oldbin
removePIDFile $PIDSPATH/$PIDFILE.oldbin
log_end_msg $SCRIPT_OK
else
log_end_msg $SCRIPT_ERROR
log_daemon_msg "ERROR! Reverting back to original $DESCRIPTION"
kill -HUP `cat $PIDSPATH/$PIDFILE`
kill -TERM `cat $PIDSPATH/$PIDFILE.oldbin`
kill -QUIT `cat $PIDSPATH/$PIDFILE.oldbin`
wait_for_pid 'removed' $PIDSPATH/$PIDFILE.oldbin
removePIDFile $PIDSPATH/$PIDFILE.oldbin
log_end_msg $SCRIPT_ok
fi
else
log_end_msg $SCRIPT_ERROR
fi
}
terminate() {
log_daemon_msg "Force terminating (via KILL) $DESCRIPTION"
PIDS=`pidof $PS` || true
[ -e $PIDSPATH/$PIDFILE ] && PIDS2=`cat $PIDSPATH/$PIDFILE`
for i in $PIDS; do
if [ "$i" = "$PIDS2" ]; then
kill $i
wait_for_pid 'removed' $PIDSPATH/$PIDFILE
removePIDFile
fi
done
log_end_msg $SCRIPT_OK
}
destroy() {
log_daemon_msg "Force terminating and may include self (via KILLALL) $DESCRIPTION"
killall $PS -q >> /dev/null 2>&1
log_end_msg $SCRIPT_OK
}
pidof_daemon() {
PIDS=`pidof $PS` || true
[ -e $PIDSPATH/$PIDFILE ] && PIDS2=`cat $PIDSPATH/$PIDFILE`
for i in $PIDS; do
if [ "$i" = "$PIDS2" ]; then
return 1
fi
done
return 0
}
case "$1" in
start)
start
;;
stop)
stop
;;
restart|force-reload)
stop
sleep 1
start
;;
reload)
$1
;;
status)
status
;;
configtest)
$1
;;
quietupgrade)
$1
;;
terminate)
$1
;;
destroy)
$1
;;
*)
FULLPATH=/etc/init.d/$PS
echo "Usage: $FULLPATH {start|stop|restart|force-reload|status|configtest|quietupgrade|terminate|destroy}"
echo " The 'destroy' command should only be used as a last resort."
exit 1
;;
esac
exit 0
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