add container tag env

Author: minghsu0107

Dockerfile

@@ -7,9 +7,10 @@ RUN chmod +x entrypoint.sh
 
 ENV SSH_KEY=
 ENV CONTAINER_REPO=
+ENV CONTAINER_TAG=
 ENV MANIFEST_HOST=
 ENV MANIFEST_USER=
 ENV MANIFEST_REPO=
 ENV SVC_PATH=
 
-ENTRYPOINT ["/app/entrypoint.sh"]
+ENTRYPOINT ["/app/entrypoint.sh"]