Installing LEMP and MEAN stacks on single droplet?

It should be fine to have both set ups on a single droplet. We have tutorials going through both setups:

• How To Install Linux, nginx, MySQL, PHP (LEMP) stack on Ubuntu 14.04
• How To Install a MEAN.JS Stack on an Ubuntu 14.04 Server

You can either start with a fresh Ubuntu base install and follow those tutorials or start with one of the “applications” and install the other along side it.

The one thing to keep in mind is that only one process can bind to port 80 at a time. So in order to run both sites, you’ll need to set up your MEAN app to run behind an Nginx reverse proxy.

You Nginx configuration might look something like this:

server {
	listen 80 default_server;
	listen [::]:80 default_server ipv6only=on;

	root /var/www/html;
	index index.php index.html index.htm;

	server_name example.com;

	location / {
		# First attempt to serve request as file, then
		# as directory, then fall back to displaying a 404.
		try_files $uri $uri/ =404;
	}

	error_page 404 /404.html;
	error_page 500 502 503 504 /50x.html;
	location = /50x.html {
		root /usr/share/nginx/html;
	}

	location ~ \.php$ {
		try_files $uri =404;
		fastcgi_split_path_info ^(.+\.php)(/.+)$;
		fastcgi_pass unix:/var/run/php5-fpm.sock;
		fastcgi_index index.php;
		include fastcgi_params;
	}
}

upstream mean_app{
  server 127.0.0.1:3000;
}

server{
	listen 80;
	listen [::]:80 ipv6only=on;

    server_name meanapp.example.com;

    location / {
      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://mean_app/;
      proxy_redirect off;
    }
}

A couple things to note here. This assumes the MEAN app is running on port 3000. Update that as needed. Also, the server_name directive is important here. It’s how Nginx know how to route requests to the correct app.

Let us know how it goes!