Upstart

Save this file as /etc/init/nginx.conf

# nginx
 
description "nginx http daemon"
author "George Shammas <georgyo@gmail.com>"
 
start on (filesystem and net-device-up IFACE=lo)
stop on runlevel [!2345]
 
env DAEMON=/usr/sbin/nginx
env PID=/var/run/nginx.pid
 
expect fork
respawn
respawn limit 10 5
#oom never
 
pre-start script
        $DAEMON -t
        if [ $? -ne 0 ]
                then exit $?
        fi
end script
 
exec $DAEMON

“respawn” tells upstart to keep nginx master process alive and expect fork tracks ngnix after the fork. pre-start script helps say when the services fails

“respawn limit” tells that if the process is respawned more than 10 times within an interval of 5 seconds, the process will be stopped automatically, and not restarted (the default upstart value).

Then check the upstart job list:

initctl list | grep nginx

and start the job:

initctl start nginx