Publish versionned managed plugin

Author: sapk

.travis.yml

@@ -38,8 +38,10 @@ before_deploy:
   - make release
   - docker --version
   - make docker-plugin
+  - PLUGIN_TAG=$(git describe --tags --abbrev=0) make docker-plugin
   - if [ "$TRAVIS_PULL_REQUEST" = "false" ]; then docker login -u="$DOCKER_USERNAME" -p="$DOCKER_PASSWORD"; fi
   - make docker-plugin-push
+  - PLUGIN_TAG=$(git describe --tags --abbrev=0) make docker-plugin-push
 
 deploy:
   provider: releases