Add full IP chain for getting real IP of user in the element UI. (#24)

* Add X-Real-IP to workers nginx config

* Use SYNAPSE_VERSION variable for pulling synapse

* Add X-Real-IP also to workers config

* use real_ip_recursive on for IP

* Use proxy_add_x_forwarded_for for full chain of IP-s

* Remove random line

* Revert SYNAPSE_VERSION in dockerfile

---------

Co-authored-by: Taavi Ansper <taavi.ansper@cyber.ee>

Author: TafkaMax

conf-workers/synapse-nginx.conf.j2

@@ -93,7 +93,7 @@ server {
         # This is proxied into the upstream defined above to take advantage of
         # features inherent from HTTP 1.1
         proxy_pass http://main_synapse_process;
-        proxy_set_header X-Forwarded-For $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
         proxy_set_header X-Forwarded-Proto $scheme;
         proxy_set_header Host $host;
 {% if config.keepalive_global_enable %}

configure_workers_and_start.py

@@ -355,7 +355,7 @@
 NGINX_LOCATION_CONFIG_BLOCK = """
     location ~* {endpoint} {{
         proxy_pass {upstream};
-        proxy_set_header X-Forwarded-For $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
         proxy_set_header X-Forwarded-Proto $scheme;
         proxy_set_header Host $host;
 {additional_location_body}