Refactored native-

roles/docker-reverse-proxy/templates/domain.conf.j2

@@ -0,0 +1,13 @@
+server
+{
+  server_name {{domain}};
+
+  {% if client_max_body_size is defined %}
+    client_max_body_size {{ client_max_body_size }};
+  {% endif %}
+
+  {% include 'roles/letsencrypt/templates/ssl_header.j2' %}
+
+  {% include 'proxy_pass.conf.j2' %}
+
+}

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

@@ -0,0 +1,20 @@
+location /
+{
+  proxy_pass http://127.0.0.1:{{http_port}}/;
+
+  # 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          900s;
+  proxy_read_timeout          900s;
+  send_timeout                900s;
+}