generator/api/src/main/java/io/fabric8/maven/generator/api/support/BaseGenerator.java
protected String getImageName() {
        if (RuntimeMode.isOpenShiftMode(getProject().getProperties())) {
            return getConfigWithFallback(Config.name, "fabric8.generator.name", "%a:%l");
        } else {
            return getConfigWithFallback(Config.name, "fabric8.generator.name", "%g/%a:%l");
        }
    }
protected String getImageName() {
        if (RuntimeMode.isOpenShiftMode(getProject().getProperties())) {
            return getConfigWithFallback(Config.name, "fabric8.generator.name", "%a:%l");
        } else {
            return getConfigWithFallback(Config.name, "fabric8.generator.name", "%g/%a:%l");
        }
    }
Get Image name with a standard default

@return Docker image name which is never null