hs-test: fix docker warning message

Type: test

Change-Id: I156b6d9e0759bc7d324ac7d618a195ee5803ca75
Signed-off-by: Adrian Villin <avillin@cisco.com>
diff --git a/extras/hs-test/docker/Dockerfile.nginx-server b/extras/hs-test/docker/Dockerfile.nginx-server
index 0720c6f..ce397ec 100644
--- a/extras/hs-test/docker/Dockerfile.nginx-server
+++ b/extras/hs-test/docker/Dockerfile.nginx-server
@@ -7,6 +7,6 @@
  && rm -rf /var/lib/apt/lists/*
 
 COPY resources/nginx/nginx_server_mirroring.conf /nginx.conf
+COPY script/nginx_mirroring_entrypoint.sh /usr/bin/nginx_mirroring_entrypoint.sh
 
-
-ENTRYPOINT nginx -c /nginx.conf
+ENTRYPOINT ["nginx_mirroring_entrypoint.sh"]
diff --git a/extras/hs-test/script/nginx_mirroring_entrypoint.sh b/extras/hs-test/script/nginx_mirroring_entrypoint.sh
new file mode 100755
index 0000000..6581c8b
--- /dev/null
+++ b/extras/hs-test/script/nginx_mirroring_entrypoint.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+
+nginx -c /nginx.conf