Fix build-args error in dockerfile

Issue: "One or more build-args [BRANCH] were not consumed, failing build."
refer in:
https://build.opnfv.org/ci/view/daisy/job/daisy-docker-build-push-monitor-master/1/console

Change-Id: Ib26809b1bd23b9410a869a17157d45c852a89496
Signed-off-by: Julien-zte <zhang.jun3g@zte.com.cn>

diff --git a/docker/Dockerfile b/docker/Dockerfile
index f10d95e..8703858 100644 (file)
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,5 +1,6 @@
 FROM centos:7
 LABEL daisy_image_version=1.0
+ENV BRANCH=$BRANCH
 RUN yum -y update
 RUN yum -y install centos-release-openstack-newton
 RUN yum -y install \