skipping onos tests in onos dockerfile

Change-Id: I6110dd8759d5f27d45092297e779617782185d40
diff --git a/docker/Dockerfile.onos b/docker/Dockerfile.onos
index eafa892..cc97524 100644
--- a/docker/Dockerfile.onos
+++ b/docker/Dockerfile.onos
@@ -11,7 +11,7 @@
 RUN git config --global http.sslverify false && \
     git clone https://alshabibi@bitbucket.org/alshabibi/onos-apps.git
     
-RUN cd $ONOS/onos-apps/apps && mvn clean install
+RUN cd $ONOS/onos-apps/apps && mvn  -DskipTests=true clean install
 
 WORKDIR $ONOS