public void initTags(ConfigHelper.NameFormatter nameFormatter) {
        if (tags != null) {
            tags = tags.stream().map(nameFormatter::format).collect(Collectors.toList());
        }
    }
Use {@link #getAllAssemblyConfigurations()} unless you specifically want the configuration defined only by <code>assemblies</code>.
src/main/java/io/fabric8/maven/docker/config/BuildImageConfiguration.java