Note: Instructions below will enable the control of php5-fp, process via the /etc/init.d script. This is not mandatory. You can use the service command to control the php5-fpm process. Examples below:
service php5-fpm start
service php5-fpm stop
service php5-fpm restart
Disable control of php-fpm via upstart
Instructions below will disable control of php5-fpm via upstart.