Adding image cache max.

ansible/templates/nginx.conf

@@ -67,5 +67,10 @@ server {
       proxy_set_header X-Real-IP $remote_addr;
       proxy_set_header Host $host;
       proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+
+      if ($request_uri ~ \.(?:ico|gif|jpe?g|png|webp|bmp|mp4)$) {
+        add_header Cache-Control "public";
+        expires max;
+      }   
     }
 }