From 3f6381d0faf580e6b49d7ba13a09e983e99e2808 Mon Sep 17 00:00:00 2001
From: Thomas LEVEIL <thomasleveil@gmail.com>
Date: Sat, 14 Jan 2017 11:40:33 +0100
Subject: [PATCH] regexp: use sha1 for upstream only if regexp is used

avoid confusions such as in #677
---
 nginx.tmpl | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/nginx.tmpl b/nginx.tmpl
index a6a45e6..8bef446 100644
--- a/nginx.tmpl
+++ b/nginx.tmpl
@@ -92,7 +92,8 @@ server {
 {{ end }}
 
 {{ range $host, $containers := groupByMulti $ "Env.VIRTUAL_HOST" "," }}
-{{ $upstream_name := sha1 $host }}
+{{ $is_regexp := hasPrefix "~" $host }}
+{{ $upstream_name := when $is_regexp (sha1 $host) $host }}
 # {{ $host }}
 upstream {{ $upstream_name }} {
 {{ range $container := $containers }}