Nginx configuration for projects as subdirectories (projects.example.com/project1)

projects.example.com.conf

#
# cat /etc/nginx/sites-enabled/projects.example.com
#

# Define variable $topdir (top level directory name)
map $request_uri $topdir {
	~(?<captured_topdir>^/[a-zA-Z0-9]+)[/] $captured_topdir;
}

server {

	server_name _;
	listen 80 default;


	# Define variable $site
	set $site $host;


	# Remove potential www from $site
	if ($site ~ "^(w{3}\.)?(.*)$") { set $site $2; }


	# Define variable $root, based on processed $site variable
	set $root /var/www/$site;


	# If there is a folder www.$site, set $root to that folder instead
	if (-d  /var/www/www.$site)    { set $root /var/www/www.$site; }


	# Write $uri's current value to http response header (for debugging)
	add_header X-debug-message "Uri is $uri" always;


	# Return 404 when there is no /var/www/$host folder
	if (!-d $root)                 { return 404; }


	# Set root to /var/www/$host/public when such folder exists (Laravel etc)
	if (-d $root/public)              { set $root $root/public; }


	# Set access log
	access_log  /var/log/nginx/$site.access.log;


	# Finally, set root to $root, whatever $root is by now
	root		$root;


	# Set directory index file
	index  index.html index.htm index.php;


	# If there requested file/dir does not exist, inject $topdir and the index.php part.
	# Stop processing remaining rewrites.
	if (!-f $request_filename) {
		rewrite ^/(.+)$ $topdir/index.php?url=$1 last;
		break;
	}


	# PHP
	location ~ \.php$ {
		fastcgi_split_path_info ^(.+\.php)(/.+)$;
		fastcgi_pass unix:/var/run/php/php7.0-fpm.sock;
		fastcgi_index index.php;
		include fastcgi_params;
		fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
		fastcgi_intercept_errors off;
		fastcgi_buffer_size 16k;
		fastcgi_buffers 4 16k;
		fastcgi_connect_timeout 300;
		fastcgi_send_timeout 300;
		fastcgi_read_timeout 300;
	}


	# Do not log static file requests, tell browser to cache them for a year
	location ~ ^/(img|images|css|js|ccss|cjs) {
		access_log off;
		expires 370d;
		add_header Cache-Control public;
	}


	# deny access to hidden
	location ~ /\. {
		deny  all;
	}


	# Do not log bot and favicon requests
	location ~ /(favicon.ico|robots.txt) { log_not_found off; access_log off; }
}