Payara Micro And Docker Payara Micro is a "zero" installation version of the commercially supported GlassFish version -- aka payara.fish. Payara micro is not limited to embedded deployments with "Fat Jars" or "Ueber Jars" packaging only. The Micro edition separates the static server infrastructure from the "moving parts", what significantly speeds up build and deployment times: The Dockerfile in the screencast was taken from https://github.com/AdamBien/docklands. See you at Java EE Workshops at Munich Airport, Terminal 2 and particularly at Java EE 7 Microservices and Java EE 7 Architectures. Is MUC too far? See you at airhacks.io.