Support devel build using local source tree
diff --git a/containers/synchronizer/Dockerfile b/containers/synchronizer/Dockerfile
index 7170e1c..187168c 100644
--- a/containers/synchronizer/Dockerfile
+++ b/containers/synchronizer/Dockerfile
@@ -28,7 +28,7 @@
 # For Observer
 RUN mkdir -p /usr/local/share /bin /etc/ansible
 
-RUN cp /tmp/xos/containers/synchronizer/conf/ansible-hosts /etc/ansible/hosts
+COPY conf/ansible-hosts /etc/ansible/hosts
 
 ADD http://phantomjs.googlecode.com/files/phantomjs-1.7.0-linux-x86_64.tar.bz2 /usr/local/share/
 
@@ -42,6 +42,6 @@
 
 
 # Supervisor
-RUN cp /tmp/xos/containers/synchronizer/conf/synchronizer.conf /etc/supervisor/conf.d/
+COPY conf/synchronizer.conf /etc/supervisor/conf.d/
 
 CMD update-ca-certificates && /usr/bin/supervisord -c /etc/supervisor/conf.d/synchronizer.conf