From 264add87fa1f8e84f3a9eb237a1a5ecd5209aa6c Mon Sep 17 00:00:00 2001
From: Marc Schink <ejabberd-dev@marcschink.de>
Date: Wed, 3 Jan 2018 17:16:23 +0100
Subject: [PATCH] mod_proxy65: Expand @HOST@ keyword in 'hostname' option

---
 src/mod_proxy65_service.erl | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/mod_proxy65_service.erl b/src/mod_proxy65_service.erl
index fb34ba554..721ebabe3 100644
--- a/src/mod_proxy65_service.erl
+++ b/src/mod_proxy65_service.erl
@@ -252,8 +252,9 @@ transform_module_options(Opts) ->
 -spec get_streamhost(binary(), binary()) -> streamhost().
 get_streamhost(Host, ServerHost) ->
     {Port, IP} = get_port_ip(ServerHost),
-    HostName = gen_mod:get_module_opt(ServerHost, mod_proxy65, hostname,
+    HostName0 = gen_mod:get_module_opt(ServerHost, mod_proxy65, hostname,
 				      misc:ip_to_list(IP)),
+    HostName = misc:expand_keyword(<<"@HOST@">>, HostName0, ServerHost),
     Resource = ejabberd_cluster:node_id(),
     #streamhost{jid = jid:make(<<"">>, Host, Resource),
 		host = HostName,