Sample Code for the Java EE Microservices on OpenShift screencasts
Video series announcement: adambien.blog
Also checkout airhacks.io for screencasts about Microservices javaeemicro.services, Effective Java EE effectivejavaee.com or PWAs http://effectiveweb.training.
Any questions left? Ask at airhacks.tv, first Monday of the month at 6pm CET.