use servers.conf instead

servers.conf.erb

@@ -0,0 +1,27 @@
+server {
+    listen <%= ENV["PORT"] %>;
+    server_name _;
+
+    proxy_cache_path /tmp/nginx_assistant_cache levels=1:2 keys_zone=assistant:10m max_size=1g inactive=60m use_temp_path=off;
+
+    location /static/ {
+        expires max;
+        alias /app/staticfiles/;
+    }
+
+    location / {
+        proxy_pass http://unix:/tmp/gunicorn.sock;
+        proxy_cache assistant;
+        proxy_cache_key $request_method$request_uri;
+        proxy_cache_lock on;
+        proxy_cache_lock_timeout 10s;
+        proxy_cache_use_stale error timeout updating;
+        proxy_cache_background_update on;
+        add_header X-Cache-Status $upstream_cache_status;
+    }
+
+    location ~ ^/(favicon(?:-\d+)?.(?:jpe?g|png|ico))$ {
+        access_log off;
+        log_not_found off;
+    }
+}