diff --git a/sdk_container/src/third_party/coreos-overlay/app-emulation/docker/docker-1.12.6.ebuild b/sdk_container/src/third_party/coreos-overlay/app-emulation/docker/docker-1.12.6.ebuild
new file mode 100644
index 0000000000..62eb6bc1a6
--- /dev/null
+++ b/sdk_container/src/third_party/coreos-overlay/app-emulation/docker/docker-1.12.6.ebuild
@@ -0,0 +1,328 @@
+# Copyright 1999-2015 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI=5
+
+CROS_WORKON_PROJECT="coreos/docker"
+CROS_WORKON_LOCALNAME="docker"
+CROS_WORKON_REPO="git://github.com"
+COREOS_GO_VERSION="go1.6"
+
+if [[ ${PV} == *9999 ]]; then
+	DOCKER_GITCOMMIT="unknown"
+	KEYWORDS="~amd64 ~arm64"
+else
+	CROS_WORKON_COMMIT="d5236f0452873048a28c1ecd63d40513efa66542" # coreos-1.12.6
+	DOCKER_GITCOMMIT="${CROS_WORKON_COMMIT:0:7}"
+	KEYWORDS="amd64 arm64"
+fi
+
+inherit bash-completion-r1 eutils linux-info multilib systemd udev user cros-workon coreos-go-depend
+
+DESCRIPTION="Docker complements kernel namespacing with a high-level API which operates at the process level"
+HOMEPAGE="https://dockerproject.org"
+LICENSE="Apache-2.0"
+SLOT="0"
+IUSE="apparmor aufs +btrfs contrib +device-mapper experimental +overlay seccomp
+	+selinux vim-syntax zsh-completion +journald"
+
+# https://github.com/docker/docker/blob/master/hack/PACKAGERS.md#build-dependencies
+CDEPEND="
+	>=dev-db/sqlite-3.7.9:3
+	device-mapper? (
+		>=sys-fs/lvm2-2.02.89[thin]
+	)
+	seccomp? (
+		>=sys-libs/libseccomp-2.2.1[static-libs]
+	)
+	journald? (
+		>=sys-apps/systemd-225
+	)
+"
+
+DEPEND="
+	${CDEPEND}
+
+	btrfs? (
+		>=sys-fs/btrfs-progs-3.16.1
+	)
+"
+
+# For CoreOS builds coreos-kernel must be installed because this ebuild
+# checks the kernel config. The kernel config is left by the kernel compile
+# or an explicit copy when installing binary packages. See coreos-kernel.eclass
+DEPEND+="sys-kernel/coreos-kernel"
+
+# https://github.com/docker/docker/blob/master/hack/PACKAGERS.md#runtime-dependencies
+# https://github.com/docker/docker/blob/master/hack/PACKAGERS.md#optional-dependencies
+RDEPEND="
+	${CDEPEND}
+
+	!app-emulation/docker-bin
+	>=net-firewall/iptables-1.4
+	sys-process/procps
+	>=dev-vcs/git-1.7
+	>=app-arch/xz-utils-4.9
+	>=sys-apps/shadow-4.4
+
+	>=app-emulation/containerd-0.2.5[seccomp?]
+	>=app-emulation/runc-1.0.0_rc2-r2[apparmor?,seccomp?]
+"
+
+RESTRICT="installsources strip"
+
+# see "contrib/check-config.sh" from upstream's sources
+CONFIG_CHECK="
+	~NAMESPACES ~NET_NS ~PID_NS ~IPC_NS ~UTS_NS
+	~CGROUPS ~CGROUP_CPUACCT ~CGROUP_DEVICE ~CGROUP_FREEZER ~CGROUP_SCHED ~CPUSETS ~MEMCG
+	~KEYS ~MACVLAN ~VETH ~BRIDGE ~BRIDGE_NETFILTER
+	~NF_NAT_IPV4 ~IP_NF_FILTER ~IP_NF_MANGLE ~IP_NF_TARGET_MASQUERADE
+	~IP_VS ~IP_VS_RR
+	~NETFILTER_XT_MATCH_ADDRTYPE ~NETFILTER_XT_MATCH_CONNTRACK
+	~NETFILTER_XT_MATCH_IPVS
+	~NETFILTER_XT_MARK ~NETFILTER_XT_TARGET_REDIRECT
+	~NF_NAT ~NF_NAT_NEEDED
+
+	~POSIX_MQUEUE
+
+	~MEMCG_SWAP ~MEMCG_SWAP_ENABLED
+
+	~BLK_CGROUP ~IOSCHED_CFQ
+	~CGROUP_PERF
+	~CGROUP_HUGETLB
+	~NET_CLS_CGROUP
+	~CFS_BANDWIDTH ~FAIR_GROUP_SCHED ~RT_GROUP_SCHED
+	~XFRM_ALGO ~XFRM_USER
+"
+
+ERROR_KEYS="CONFIG_KEYS: is mandatory"
+ERROR_MEMCG_SWAP="CONFIG_MEMCG_SWAP: is required if you wish to limit swap usage of containers"
+ERROR_RESOURCE_COUNTERS="CONFIG_RESOURCE_COUNTERS: is optional for container statistics gathering"
+
+ERROR_BLK_CGROUP="CONFIG_BLK_CGROUP: is optional for container statistics gathering"
+ERROR_IOSCHED_CFQ="CONFIG_IOSCHED_CFQ: is optional for container statistics gathering"
+ERROR_CGROUP_PERF="CONFIG_CGROUP_PERF: is optional for container statistics gathering"
+ERROR_CFS_BANDWIDTH="CONFIG_CFS_BANDWIDTH: is optional for container statistics gathering"
+ERROR_XFRM_ALGO="CONFIG_XFRM_ALGO: is optional for secure networks"
+ERROR_XFRM_USER="CONFIG_XFRM_USER: is optional for secure networks"
+
+pkg_setup() {
+	if kernel_is lt 3 10; then
+		ewarn ""
+		ewarn "Using Docker with kernels older than 3.10 is unstable and unsupported."
+		ewarn " - http://docs.docker.com/installation/binaries/#check-kernel-dependencies"
+	fi
+
+	# for where these kernel versions come from, see:
+	# https://www.google.com/search?q=945b2b2d259d1a4364a2799e80e8ff32f8c6ee6f+site%3Akernel.org%2Fpub%2Flinux%2Fkernel+file%3AChangeLog*
+	if ! {
+		kernel_is ge 3 16 \
+		|| { kernel_is 3 15 && kernel_is ge 3 15 5; } \
+		|| { kernel_is 3 14 && kernel_is ge 3 14 12; } \
+		|| { kernel_is 3 12 && kernel_is ge 3 12 25; }
+	}; then
+		ewarn ""
+		ewarn "There is a serious Docker-related kernel panic that has been fixed in 3.16+"
+		ewarn "  (and was backported to 3.15.5+, 3.14.12+, and 3.12.25+)"
+		ewarn ""
+		ewarn "See also https://github.com/docker/docker/issues/2960"
+	fi
+
+	if kernel_is le 3 18; then
+		CONFIG_CHECK+="
+			~RESOURCE_COUNTERS
+		"
+	fi
+
+	if kernel_is le 3 13; then
+		CONFIG_CHECK+="
+			~NETPRIO_CGROUP
+		"
+	else
+		CONFIG_CHECK+="
+			~CGROUP_NET_PRIO
+		"
+	fi
+
+	if kernel_is lt 4 5; then
+		CONFIG_CHECK+="
+			~MEMCG_KMEM
+		"
+		ERROR_MEMCG_KMEM="CONFIG_MEMCG_KMEM: is optional"
+	fi
+
+	if kernel_is lt 4 7; then
+		CONFIG_CHECK+="
+			~DEVPTS_MULTIPLE_INSTANCES
+		"
+	fi
+
+	if use aufs; then
+		CONFIG_CHECK+="
+			~AUFS_FS
+			~EXT4_FS_POSIX_ACL ~EXT4_FS_SECURITY
+		"
+		ERROR_AUFS_FS="CONFIG_AUFS_FS: is required to be set if and only if aufs-sources are used instead of aufs4/aufs3"
+	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 ~EXT4_FS_POSIX_ACL ~EXT4_FS_SECURITY
+		"
+	fi
+
+	if use overlay; then
+		CONFIG_CHECK+="
+			~OVERLAY_FS ~EXT4_FS_SECURITY ~EXT4_FS_POSIX_ACL
+		"
+	fi
+
+	if use seccomp; then
+		CONFIG_CHECK+="
+			~SECCOMP
+		"
+	fi
+
+	linux-info_pkg_setup
+
+	# create docker group for the code checking for it in /etc/group
+	enewgroup docker
+}
+
+src_prepare() {
+	# allow user patches (use sparingly - upstream won't support them)
+	epatch_user
+
+	# remove the .git directory so that hack/make.sh uses DOCKER_GITCOMMIT
+	# for the commit hash.
+	rm --recursive --force .git
+}
+
+src_compile() {
+	# if we treat them right, Docker's build scripts will set up a
+	# reasonable GOPATH for us
+	export AUTO_GOPATH=1
+
+	# 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/EXTLDFLAGS_STATIC='/&-fno-PIC /" hack/make.sh || die
+		grep -q -- '-fno-PIC' hack/make.sh || die 'hardened sed failed'
+
+		sed  "s/LDFLAGS_STATIC_DOCKER='/&-extldflags -fno-PIC /" \
+			-i hack/make/dynbinary-client || die
+		sed  "s/LDFLAGS_STATIC_DOCKER='/&-extldflags -fno-PIC /" \
+			-i hack/make/dynbinary-daemon || die
+		grep -q -- '-fno-PIC' hack/make/dynbinary-daemon || die 'hardened sed failed'
+		grep -q -- '-fno-PIC' hack/make/dynbinary-client || die 'hardened sed failed'
+	fi
+
+	# let's set up some optional features :)
+	export DOCKER_BUILDTAGS=''
+	for gd in aufs btrfs device-mapper overlay; do
+		if ! use $gd; then
+			DOCKER_BUILDTAGS+=" exclude_graphdriver_${gd//-/}"
+		fi
+	done
+
+	for tag in apparmor seccomp selinux journald; do
+		if use $tag; then
+			DOCKER_BUILDTAGS+=" $tag"
+		fi
+	done
+
+	if has_version '<sys-fs/lvm2-2.02.110' ; then
+		# Docker uses the host files when testing features, so force
+		# docker to not use dm_task_deferred_remove to cover cross
+		# builds.
+		DOCKER_BUILDTAGS+=' libdm_no_deferred_remove'
+	fi
+
+	# https://github.com/docker/docker/pull/13338
+	if use experimental; then
+		export DOCKER_EXPERIMENTAL=1
+	else
+		unset DOCKER_EXPERIMENTAL
+	fi
+
+	# disable optimizations due to https://github.com/golang/go/issues/14669
+	CFLAGS+=" -O0"
+
+	go_export
+
+	# verbose building
+	export BUILDFLAGS="-x -v"
+
+	# time to build!
+	./hack/make.sh dynbinary || die 'dynbinary failed'
+}
+
+src_install() {
+	VERSION="$(cat VERSION)"
+	newbin "bundles/$VERSION/dynbinary-client/docker-$VERSION" docker
+	newbin "bundles/$VERSION/dynbinary-daemon/dockerd-$VERSION" dockerd
+	newbin "bundles/$VERSION/dynbinary-daemon/docker-proxy-$VERSION" docker-proxy
+	dosym containerd /usr/bin/docker-containerd
+	dosym containerd-shim /usr/bin/docker-containerd-shim
+	dosym runc /usr/bin/docker-runc
+
+	newinitd contrib/init/openrc/docker.initd docker
+	newconfd contrib/init/openrc/docker.confd docker
+
+	exeinto /usr/lib/coreos
+	doexe "${FILESDIR}/dockerd"
+
+	systemd_dounit "${FILESDIR}/docker.service"
+	systemd_dounit "${FILESDIR}/docker.socket"
+
+	insinto /usr/lib/systemd/network
+	doins "${FILESDIR}"/50-docker.network
+	doins "${FILESDIR}"/90-docker-veth.network
+
+	udev_dorules contrib/udev/*.rules
+
+	dodoc AUTHORS CONTRIBUTING.md CHANGELOG.md NOTICE README.md
+	dodoc -r docs/*
+
+	dobashcomp contrib/completion/bash/*
+
+	if use zsh-completion; then
+		insinto /usr/share/zsh/site-functions
+		doins contrib/completion/zsh/*
+	fi
+
+	if use vim-syntax; then
+		insinto /usr/share/vim/vimfiles
+		doins -r contrib/syntax/vim/ftdetect
+		doins -r contrib/syntax/vim/syntax
+	fi
+
+	if use contrib; then
+		# note: intentionally not using "doins" so that we preserve +x bits
+		mkdir -p "${D}/usr/share/${PN}/contrib"
+		cp -R contrib/* "${D}/usr/share/${PN}/contrib"
+	fi
+}
+
+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
+	elog "To use Docker as a non-root user, add yourself to the 'docker' group:"
+	elog "  usermod -aG docker youruser"
+	elog
+}