rottenraptor-server: better nginx config for radio

data/nginx/files/extras/rottenraptor-server/radio

@@ -1,9 +1,32 @@
     location / {
         proxy_pass           http://172.30.17.52:8000/;
-        proxy_http_version   1.0;
+
-        proxy_buffering      off;
+        # Ensure streams don't end after a short time.
         proxy_read_timeout   7d;
 
+        # Disable request size limit, very important for uploading large files
+        client_max_body_size 0;
+
+        # Enable support `Transfer-Encoding: chunked`
+        chunked_transfer_encoding on;
+
+        # Disable request and response buffering, minimize latency to/from Icecast
+        proxy_buffering off;
+        proxy_request_buffering off;
+
+        # Icecast needs HTTP/1.1, not 1.0 or 2
+        proxy_http_version 1.1;
+
+        # Forward all original request headers
+        proxy_pass_request_headers on;
+
+        # Set some standard reverse proxy headers. Icecast server currently ignores these,
+        # but may support them in a future version so that access logs are more useful.
+        proxy_set_header  Host              $http_host;
+        proxy_set_header  X-Real-IP         $remote_addr;
+        proxy_set_header  X-Forwarded-For   $proxy_add_x_forwarded_for;
+        proxy_set_header  X-Forwarded-Proto $scheme;
+
         auth_basic "Rotten City Eventradio";
         auth_basic_user_file /etc/nginx/radio-htpasswd;