One of the exciting things the WildFly developers did last year was development of new tooling -- WildFly Glow -- to help you provision a WildFly server, bootable jar or Docker image that is tailored to the needs of your application deployment. The WildFly Glow tooling is now available in beta form, with a goal of general availability in the WildFly 32 timeframe. I encourage you to give it a try and let us know your feedback!
Jean Francois Denise (the main driver behind this work) has just now posted an extensive introduction to WildFly Glow: