Nginx config now includes app-specific config snippets.

Closes iphoting#16.

README.md

@@ -28,6 +28,7 @@ Create a `conf/` directory in the root of the your deployment. Any files with na
 
 This way, you can customise settings specific to your application, especially the document root in `nginx.conf.erb`. (Note the .erb extension.)
 
+Alternatively, the bundled `nginx.conf.erb` will automatically include all nginx configuration snippets within the application directory: `conf/nginx.d/*.conf`. This is another way that you can modify the `root` and `index` directives. Further, if the config snippets end with `.erb`, they will be parsed and have `.conf` extension appended to its filename. 
 
 Pre-compiling binaries
 ----------------------

bin/compile

@@ -225,6 +225,8 @@ echo "Booting nginx"
 # Override config files if provided in app.
 if [ -d /app/conf ]; then
 
+	mkdir -p /app/conf/nginx.d
+
 	if [ -d /app/conf/etc.d ]; then
 		cp -f /app/conf/etc.d/* /app/vendor/php/etc.d/
 	fi
@@ -245,6 +247,13 @@ fi
 
 # Set correct port variable.
 erb /app/vendor/nginx/conf/nginx.conf.erb > /app/vendor/nginx/conf/nginx.conf
+
+# Parse .erb into .conf.
+for f in /app/conf/nginx.d/*.erb
+do
+	erb "\${f}" > "\${f}.conf"
+done
+
 # Set NEWRELIC key
 if [ -x "/app/local/bin/newrelic-license" ]; then
 	/app/local/bin/newrelic-license

conf/nginx.conf.erb

@@ -30,13 +30,13 @@ http {
     server unix:/tmp/php-fpm.socket;
   }
 
+  root              /app/;
+  index             index.php index.html index.htm;
+
   server {
     listen            <%= ENV['PORT'] %>;
     server_name       _;
 
-    root              /app/;
-    index             index.php index.html index.htm;
-
     # Some basic cache-control for static files to be sent to the browser
     location ~* \.(?:ico|css|js|gif|jpeg|jpg|png)$ {
       expires         max;
@@ -97,6 +97,8 @@ http {
     #  # }
     #}
 
+    include /app/conf/nginx.d/*.conf
+
     location ~ .*\.php$ {
       try_files $uri =404;
       limit_conn phplimit 5; # limit to 5 concurrent users to PHP per IP.