Deactivated buffering to reduce reverse proxy as bottle neck

roles/native-docker-reverse-proxy/readme.md

@@ -11,3 +11,7 @@ curl -I {{address}}
 ## performance
 - https://stackoverflow.com/questions/33703230/caching-images-on-all-folder-levels-of-nginx-reverse-proxy
 - https://www.tweaked.io/guide/nginx-proxying/
+- https://serverfault.com/questions/796735/nginx-reverse-proxy-is-slow/796740
+- https://serverfault.com/questions/741610/what-is-the-difference-between-proxy-request-buffering-and-proxy-buffering-on-ng
+- https://askubuntu.com/questions/1103626/should-i-enable-client-max-body-size-proxy-request-buffering-and-proxy-bufferin
+- https://serverfault.com/questions/692577/whats-the-difference-between-proxy-buffer-and-proxy-cache-module-in-nginx-confi

roles/native-docker-reverse-proxy/templates/proxy_pass.conf.j2

@@ -6,11 +6,16 @@ location /
     proxy_pass http://127.0.0.1:{{http_port}}/;
   {% endif %}
 
+  # headers
   proxy_set_header Host $host;
   proxy_set_header X-Real-IP $remote_addr;
   proxy_set_header X-Forwarded-Proto https;
   proxy_set_header X-Forwarded-Port 443;
 
+  # deactivate buffering
+  proxy_buffering off;
+  proxy_request_buffering off;
+
   # timeouts
   proxy_connect_timeout       1s;
   proxy_send_timeout          300s;
@@ -19,6 +24,7 @@ location /
 
   # cache media files
   location ~* \.(gif|ico|jpg|jpeg|png|svg|mp4|mp3|pdf)$ {
+    proxy_buffering               on;
     proxy_cache                   cache;
     proxy_cache_key               $host$uri$is_args$args;
     proxy_cache_revalidate        on;
@@ -37,6 +43,7 @@ location /
 
   # cache content
   location ~* \.(html|css|js)$ {
+    proxy_buffering               on;
     proxy_cache                   cache;
     proxy_cache_key               $host$uri$is_args$args;
     proxy_cache_revalidate        on;