Merge pull request #783 from netgroup-polito/mio/frontend-nginx

frontend/nginx.conf.tmpl

@@ -6,11 +6,32 @@ server {
         root   /usr/share/nginx/html;
         index  index.html;
         try_files $uri ${SUBROUTE}/index.html;
+
+        # Ensure that non-versioned resources are checked
+        # with upstream before using the cached version.
+        add_header Cache-Control 'no-cache must-revalidate';
+        expires 0;
+    }
+
+    location ~ ${SUBROUTE}/favicon.* {
+        root   /usr/share/nginx/html;
+
+        # Allow favicons to be cached, although for shorter periods.
+        add_header Cache-Control 'public';
+        expires 1M;
+    }
+
+    location ${SUBROUTE}/static {
+        root   /usr/share/nginx/html;
+
+        # Allow versioned resources to be cached freely, since a modification
+        # would also change the file name (i.e. they are immutable).
+        add_header Cache-Control 'immutable';
+        expires 1y;
     }
 
     location /healthz {
         access_log off;
         return 200 "healthy\n";
     }
-
 }