Merge pull request #393 from nirmata/392_bug

test build

.travis.yml

@@ -25,6 +25,11 @@ script:
 after_script:
   - curl -d "repo=https://github.com/nirmata/kyverno" https://goreportcard.com/checks
 
+# only push images if the branch is master
 after_success:
-  - docker login -u $DOCKER_USER -p $DOCKER_PASSWORD 
-  - make docker-publish
+ - |
+   if [ $TRAVIS_PULL_REQUEST == 'false' ]
+   then
+     docker login -u $DOCKER_USER -p $DOCKER_PASSWORD
+     make docker-publish
+   fi