Replace ingress proxy with nginx

This enables HTTPS redirecting at it too much more easily, and matches the gateway configuration.

Requires using upstream versions of nginx to enable https://nginx.org/en/docs/stream/ngx_stream_realip_module.html

ansible/roles/ingress/handlers/main.yml

@@ -4,8 +4,8 @@
     state: restarted
   become: true
 
-- name: restart haproxy
+- name: restart nginx
   service:
-    name: haproxy
+    name: nginx
     state: restarted
   become: true