This project uses the assembly plugin rules from resource.xml to package an artifact containing the raw contents of common-docker-package.xml. See src/assembly, at the top level of this repo, for these files.
common includes this subproject as a dependency. Child projects may simply depend on common, instead of recreating the same boilerplate XML file all over the place. If common is overkill, projects may depend on assembly-plugin-boilerplate directly.