First make sure you're running in an environment that has docker available to you. Then execute:
$ ./mvnw package docker:build
Once completed you will have an antifragilesoftware/simple-boot-traceable-zipkin-microservice image available, as seen by executing:
$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
antifragilesoftware/simple-boot-traceable-zipkin-microservice latest 6efd07dc12fc 5 seconds ago 667.1 MB