graceful nginx restart

gistfile1.txt

#!/bin/bash
# script to gracefully restart nginx on the hostname
# will reside in /home/$DEPLOY_USER/scripts
# needs to run as user with sudo permissions
set -x

sudo nginx -t #test config file

if [ $? -ne 0 ]
then
  echo "nginx configtest failed...aborting restart.";
  exit 1;
else
  sudo kill -s HUP `cat /var/run/nginx.pid` # reload nginx config
  sudo kill -s USR2 `cat /var/run/nginx.pid` # spawn new master process
  sleep 3 # wait for new process to take over the pid file
  sudo kill -s QUIT `cat /var/run/nginx.pid.oldbin` # kill the old master process after it finishes serving in-flight requests
  echo "nginx restarted gracefully"
  exit 0;
fi