protected void configureZookeeper() {
        if (this.externalZookeeperConnect == null) {
            getContainerDef().withEmbeddedZookeeper();
        } else {
            getContainerDef().withZookeeper(this.externalZookeeperConnect);
        }
    }
@deprecated use {@link #KafkaContainer(DockerImageName)} instead
modules/kafka/src/main/java/org/testcontainers/containers/KafkaContainer.java