gentoo-overlay/app-emulation/docker/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
	<longdescription>
		Docker is an open-source project to easily create lightweight,
		portable, self-sufficient containers from any application. The same
		container that a developer builds and tests on a laptop can run at
		scale, in production, on VMs, bare metal, OpenStack clusters, public
		clouds and more.
	</longdescription>
	<maintainer status="active">
		<email>admwiggin@gmail.com</email>
		<name>Tianon</name>
	</maintainer>
	<use>
		<flag name="aufs">
			Enables dependencies for the "aufs" driver, including necessary
			kernel flags.
		</flag>
		<flag name="device-mapper">
			Enables dependencies for the "device-mapper" driver, including
			necessary kernel flags.
		</flag>
	</use>
</pkgmetadata>