Error when adding a image tag for a pipeline definition

Hi All

Running on ALPHA.

The following error is displayed when I add a tag for a public image which is on the docker repo.

Without the tag I get the latest version 1.0.0 which I don't want.

Are tags supported on definitions?

Config

#!yml


definitions:
  services:
    zookeeper:
      image: wurstmeister/zookeeper:0.10.2.1
    kafka:
      image: wurstmeister/kafka:0.10.2.1
      environment:
        KAFKA_ADVERTISED_HOST_NAME: "localhost"
        KAFKA_ADVERTISED_PORT: "9092"
        KAFKA_ZOOKEEPER_CONNECT: localhost:2181

Error

rpc error: code = Unknown desc = Tag 0.10.2.1 not found in repository docker.io/wurstmeister/zookeeper