fixes to docker related aspects

Change-Id: I464140c3a1104ef17634038dfc0f40c1522bc0b9
diff --git a/Makefile b/Makefile
index 20cb119..d413899 100644
--- a/Makefile
+++ b/Makefile
@@ -85,7 +85,10 @@
 	docker build -t cord/voltha -f docker/Dockerfile.voltha .
 
 chameleon:
+	mkdir tmp.chameleon
+	cp -R chameleon/* tmp.chameleon
 	docker build -t cord/chameleon -f docker/Dockerfile.chameleon .
+	rm -rf tmp.chameleon
 
 ofagent:
 	docker build -t cord/ofagent -f docker/Dockerfile.ofagent .