Script for automating creation of subdomains on an EC2 instance. Assumes NGINX and Supervisord are driving the web/node.js sites.

newsite.sh

#!/bin/bash

#
#  launch script with: sudo ./newsite.sh
#

echo -e "What's a short name for your site? (ex. sbapi):"
read nickname
echo -e "What's the full domain for the site? (ex. sbapi.uncorkedstudios.com):"
read siteurl
echo "great, you told me $nickname will be available at $siteurl"

cd /var/www
mkdir $siteurl
cd $siteurl
mkdir logs
chown galapagos:team logs
chmod 2775 logs


isNode=NO
echo "Will this be for a node app?"
select yn in "Yes" "No"; do
    case $yn in
        Yes ) isNode=YES; break;;
        No ) isNode=NO; break;;
    esac
done

if [[ "$isNode" == YES ]]; then
	echo -e "Provide a preferred port number to listen at:"
	read port
	echo -e "filename of the javascript file to start your server? (ex. app.js)"
	read jsFile
	mkdir app
	chown galapagos:team app
	chmod 2775 app
	cat <<EOT >> server.sh
#!/bin/bash

cd /var/www/$siteurl/app
PORT=$port /usr/bin/nodejs $jsFile
EOT
	chmod +x server.sh
	chown galapagos:team server.sh
	cd /etc/nginx/sites-available
        cat <<EOT >> $nickname
server {
        listen        80;
        server_name   $siteurl;

        access_log /var/www/$siteurl/logs/access.log;
        error_log /var/www/$siteurl/logs/error.log;

        root   /var/www/$siteurl/app/;
	
	location / {

                add_header Access-Control-Allow-Headers "Content-Type, Authorization";
                add_header Access-Control-Allow-Methods "GET, POST, PUT, DELETE, OPTIONS";

                proxy_http_version 1.1;
                proxy_set_header X-Real-IP \$remote_addr;
                proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
                proxy_set_header Host \$http_host;
                proxy_set_header X-NginX-Proxy true;

                proxy_pass http://127.0.0.1:$port;
                proxy_redirect off;
        }
}
EOT
        cd ../sites-enabled
        ln -s ../sites-available/$nickname ./$nickname
        service nginx restart

	# configure supervisor
	cd /etc/supervisor/conf.d/
	cat <<EOT >> $nickname.conf
[program:$nickname]
command=/var/www/$siteurl/server.sh
autostart=true
autorestart=true
startretries=3
stopasgroup=true
killasgroup=true
stdout_logfile=/var/www/$siteurl/logs/server.log
stdout_logfile_maxbytes=1MB
stdout_logfile_backups=10
stderr_logfile=/var/www/$siteurl/logs/sup_error.log
stderr_logfile_maxbytes=1MB
stderr_logfile_backups=10
EOT
	supervisorctl reread
	supervisorctl update
	echo "Success!"
	echo "Upload your node app to /var/www/$siteurl/app/"
	echo "after uplaoding do npm install to install any needed node modules"
	echo "lastly, restart the supervisord process with:"
	echo "sudo supervisorctl restart $nickname"
else
	mkdir public_html
	chown galapagos:team public_html
	chmod 2775 public_html
	cd /etc/nginx/sites-available
	cat <<EOT >> $nickname
server {
	listen        80;
	server_name   $siteurl;

	access_log /var/www/$siteurl/logs/access.log;
	error_log /var/www/$siteurl/logs/error.log;

	root   /var/www/$siteurl/public_html/;
	index  index.html;

	error_page  404  /404.html;
}
EOT
	cd ../sites-enabled
	ln -s ../sites-available/$nickname ./$nickname
	service nginx restart
	echo "Success!"
	echo "Please upload your files to /var/www/$siteurl/public_html/"
fi
echo "DONE!"