@Override
    public void deploy(DeploymentUnit unit) throws DeploymentException {
        RubyApplicationMetaData rubyAppMetaData = unit.getAttachment(RubyApplicationMetaData.class);

        if (rubyAppMetaData.getAuthenticationStrategy() == null || rubyAppMetaData.getAuthenticationStrategy().trim().equals("")) {
            rubyAppMetaData.setAuthenticationStrategy(DEFAULT_AUTHENTICATION_STRATEGY);
        }
        String beanName = AttachmentUtils.beanName(unit, Authenticator.class);

        BeanMetaDataBuilder builder = BeanMetaDataBuilderFactory.createBuilder(beanName, Authenticator.class.getName());
        ValueMetaData kernelControllerInject = builder.createInject("jboss.kernel:service=Kernel", "controller");
        builder.addPropertyMetaData("controller", kernelControllerInject);
// how do I create this injection?
        ValueMetaData kernelControllerInject = builder.createInject("jboss.kernel:service=Kernel", "controller");
        builder.addPropertyMetaData("authStrategy", authStrategyInject);
    }