use unpriv listen port

Signed-off-by: Adrian Nöthlich <git@promasu.tech>

Author: promasu

docker/nginx.conf

@@ -20,9 +20,13 @@ http {
   }
 
   server {
+    set_real_ip_from 10.244.0.0/16;
+    set_real_ip_from fd00:23:42::/48;
+    real_ip_header X-Envoy-External-Address;
+
     include             mime.types;
     access_log          /dev/stdout;
-    listen              [::]:80 ipv6only=off;
+    listen              [::]:8080 ipv6only=off;
     proxy_redirect      off;
     proxy_set_header    Host                $host;
     proxy_set_header    X-Real-IP           $remote_addr;