feat(app-emulation/docker): Add .network configs for networkd

These will match docker0 and the assorted veth* interfaces before the
default dhcp enabled network config does so networkd leaves them alone.

sdk_container/src/third_party/coreos-overlay/app-emulation/docker/docker-0.8.1-r2.ebuild

@@ -0,0 +1,187 @@
+# Copyright 1999-2014 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: $
+
+EAPI=5
+
+DESCRIPTION="Docker complements LXC with a high-level API which operates at the process level."
+HOMEPAGE="http://www.docker.io/"
+
+GITHUB_URI="github.com/dotcloud/docker"
+
+if [[ ${PV} == *9999 ]]; then
+	SRC_URI=""
+	EGIT_REPO_URI="git://${GITHUB_URI}.git"
+	inherit git-2
+	KEYWORDS=""
+else
+	SRC_URI="https://${GITHUB_URI}/archive/v${PV}.zip -> ${P}.zip"
+	DOCKER_GITCOMMIT="a1598d1"
+	KEYWORDS="~amd64"
+	[ "$DOCKER_GITCOMMIT" ] || die "DOCKER_GITCOMMIT must be added manually for each bump!"
+fi
+
+inherit bash-completion-r1 linux-info systemd udev user
+
+LICENSE="Apache-2.0"
+SLOT="0"
+IUSE="aufs btrfs +device-mapper doc vim-syntax zsh-completion"
+
+# TODO work with upstream to allow us to build without lvm2 installed if we have -device-mapper
+CDEPEND="
+	>=dev-db/sqlite-3.7.9:3
+	sys-fs/lvm2[thin]
+"
+DEPEND="
+	${CDEPEND}
+	>=dev-lang/go-1.2
+	>=sys-fs/btrfs-progs-0.20
+	dev-vcs/git
+	dev-vcs/mercurial
+	doc? (
+		dev-python/sphinx
+		dev-python/sphinxcontrib-httpdomain
+	)
+"
+RDEPEND="
+	${CDEPEND}
+	!app-emulation/docker-bin
+	>=sys-apps/iproute2-3.5
+	>=net-firewall/iptables-1.4
+	>=app-emulation/lxc-0.8
+	>=dev-vcs/git-1.7
+	>=app-arch/xz-utils-4.9
+	aufs? (
+		|| (
+			sys-fs/aufs3
+			sys-kernel/aufs-sources
+		)
+	)
+"
+
+RESTRICT="strip"
+
+pkg_setup() {
+	CONFIG_CHECK+="
+		~BRIDGE
+		~IP_NF_TARGET_MASQUERADE
+		~MEMCG_SWAP
+		~NETFILTER_XT_MATCH_ADDRTYPE
+		~NETFILTER_XT_MATCH_CONNTRACK
+		~NF_NAT
+		~NF_NAT_NEEDED
+	"
+	ERROR_MEMCG_SWAP="CONFIG_MEMCG_SWAP: is required if you wish to limit swap usage of containers"
+
+	if use aufs; then
+		CONFIG_CHECK+="
+			~AUFS_FS
+		"
+		ERROR_AUFS_FS="CONFIG_AUFS_FS: is required to be set if and only if aufs-sources are used"
+	fi
+
+	if use btrfs; then
+		CONFIG_CHECK+="
+			~BTRFS_FS
+		"
+	fi
+
+	if use device-mapper; then
+		CONFIG_CHECK+="
+			~BLK_DEV_DM
+			~DM_THIN_PROVISIONING
+			~EXT4_FS
+		"
+	fi
+
+	check_extra_config
+}
+
+src_prepare() {
+	epatch "${FILESDIR}"/fix-api-serve-until-the-acceptconnections-job.patch
+}
+
+src_compile() {
+	# if we treat them right, Docker's build scripts will set up a
+	# reasonable GOAPTH for us
+	export AUTO_GOPATH=1
+
+	# setup CFLAGS and LDFLAGS for separate build target
+	# see https://github.com/tianon/docker-overlay/pull/10
+	export CGO_CFLAGS="-I${ROOT}/usr/include"
+	export CGO_LDFLAGS="-L${ROOT}/usr/lib"
+
+	# if we're building from a zip, we need the GITCOMMIT value
+	[ "$DOCKER_GITCOMMIT" ] && export DOCKER_GITCOMMIT
+
+	if gcc-specs-pie; then
+		sed -i 's/export LDFLAGS_STATIC="/export LDFLAGS_STATIC="-extldflags=-fno-PIC /' hack/make/dynbinary || die
+		grep -q '-extldflags=-fno-PIC' hack/make/dynbinary || die 'sed failed'
+	fi
+
+	# time to build!
+	./hack/make.sh dynbinary || die
+
+	if use doc; then
+		emake -C docs docs man || die
+	fi
+}
+
+src_install() {
+	VERSION=$(cat VERSION)
+	newbin bundles/$VERSION/dynbinary/docker-$VERSION docker
+	exeinto /usr/libexec/docker
+	newexe bundles/$VERSION/dynbinary/dockerinit-$VERSION dockerinit
+
+	newinitd contrib/init/openrc/docker.initd docker
+	newconfd contrib/init/openrc/docker.confd docker
+
+	systemd_dounit "${FILESDIR}/docker.service"
+	systemd_dounit "${FILESDIR}/docker.socket"
+
+	insinto /usr/lib/systemd/network
+	doins "${FILESDIR}"/50-docker{,-veth}.network
+
+	udev_dorules contrib/udev/*.rules
+
+	dodoc AUTHORS CONTRIBUTING.md CHANGELOG.md NOTICE README.md
+	if use doc; then
+		dohtml -r docs/_build/html/*
+		doman docs/_build/man/*
+	fi
+
+	dobashcomp contrib/completion/bash/*
+
+	if use zsh-completion; then
+		insinto /usr/share/zsh/site-functions
+		doins contrib/completion/zsh/*
+	fi
+
+	if use vim-syntax; then
+		insinto /usr/share/vim/vimfiles
+		doins -r contrib/syntax/vim/ftdetect
+		doins -r contrib/syntax/vim/syntax
+	fi
+
+	insinto /usr/share/${P}/contrib
+	doins contrib/README
+	cp -R "${S}/contrib"/* "${D}/usr/share/${P}/contrib/"
+}
+
+pkg_postinst() {
+	udev_reload
+
+	elog ""
+	elog "To use docker, the docker daemon must be running as root. To automatically"
+	elog "start the docker daemon at boot, add docker to the default runlevel:"
+	elog "  rc-update add docker default"
+	elog "Similarly for systemd:"
+	elog "  systemctl enable docker.service"
+	elog ""
+
+	# create docker group if the code checking for it in /etc/group exists
+	enewgroup docker
+
+	elog "To use docker as a non-root user, add yourself to the docker group."
+	elog ""
+}

sdk_container/src/third_party/coreos-overlay/app-emulation/docker/files/50-docker-veth.network

@@ -0,0 +1,4 @@
+[Match]
+Driver=veth
+
+[Network]

sdk_container/src/third_party/coreos-overlay/app-emulation/docker/files/50-docker.network

@@ -0,0 +1,5 @@
+[Match]
+Type=bridge
+Name=docker*
+
+[Network]