gentoo (valentine's day) resync : 14.02.2021

3 files changed, 630 insertions, 0 deletions

diff --git a/app-emulation/docker/Manifest b/app-emulation/docker/Manifest
index 4ea40dee9633..d1d2c1427440 100644
--- a/app-emulation/docker/Manifest
+++ b/app-emulation/docker/Manifest
@@ -1,7 +1,11 @@
 DIST docker-19.03.13.tar.gz 18242693 BLAKE2B c19afed62694274298b42fc9af3b36c4cc6429b40f7e5447a996b87636a0d2e916476875652e20abd7aeab4e5e0e1cf887a04dcade1de03ded549fc36d911ac4 SHA512 5f34a14ef0b36a309d4a08926ac482ca82d24cdd873aa359c5ba7c65473cbb2e987fe615c38c1bc1c50135284da78a7eb98a8a0106d7d073aeda0cd8f1c31873
 DIST docker-19.03.14.tar.gz 18278132 BLAKE2B 5e32cb482fdc40531aa4ba79dd447093859f568b3d8b5c3ed584c78d5709fabf2a1e05e82af2686cd87462e1abd899bd3f0a746f97937b7d16950f5e94264dff SHA512 5e48185a7787d5637fc11f43f6af604d56a5fa4367fd5a558bb3a5ef3c0d767f1c7f83ecef369453696b68eed81e49520453f267fbe8c2b840b3f62d35f25c28
+DIST docker-19.03.15.tar.gz 18284803 BLAKE2B a1fac5d841934382d12c781353546b7c7a8167d0f2dc4150659a4aece210ea7361c59de25e3d450dae20fd536ea8dc33a18e55f9565ee4fdc818166810391fbf SHA512 ffd8e683a93a6ce69789603d24457aebe3379594692cb3dadc25bc8d407771a29d76087b0ca70856707f151622b1853f283a1071311c033ff90a1e44b0d9ffbc
 DIST docker-20.10.2.tar.gz 11045195 BLAKE2B 182ceabbabfa091eaae8ecf12a50dfbe296722072ee24cdde48c3ed2ad40f47d6f939830a00e1dbe7d5dfb1fa25ccda7efe25ce3e4f9a7bbf6ad85dac109168c SHA512 b514e98e3f71874fcf5374eeaaabc2c879691b48937dbc962be3577d834f571353d4f946aebfa69f1a62b1388c9220bfdff09b62bf62c134bd41f494e8506f56
+DIST docker-20.10.3.tar.gz 11063792 BLAKE2B 9309573dd83d0746bb492cf68e06d69e60550718f8f934a065b33d1538847a4effcf6310638daa9b535515bc43cc1b47636482c90d4499f2b46b74aa37882dd7 SHA512 8389980e0b47e34872301bbe703d7abfc7819946736bab0ef4fee983daa4f798c7c6373d823dc62a3995076e71ca6bc86dc793f736b68e8ec1040332193cfdb8
 EBUILD docker-19.03.13-r2.ebuild 9217 BLAKE2B c75a45738a89c1205a6515e3c9796cdffa63776cc54ba6f345579ecaae9642dbb8c8246af1b78b0cd14002a25a1bb8ff8238a4eca874bdfd30ea23bf1c5ff5c1 SHA512 65f016b40849652aea58353a6a3045c0aaac8793891db727ab597a97e885a27ba8380413b108ce090afa66474fa3502b74c8278722bcae454fc98b4a3c226bf4
 EBUILD docker-19.03.14.ebuild 9216 BLAKE2B 01bb9dde2f897bc65e4eabefc07be637118e19d512e4a0c46e8ba6d5aec6b5b2aba8f1e702eda11a4641f08acc3c91661348b89561b3d2f11e7e59bf6991ec3e SHA512 cf68f486054ed21d6a690f364e84db2e8b8efab22d8eb1a8de0e381d1011c221f0ab664be5e22973d82cc1a98fac29135cc3baa0171362b7152e80da1d5a186b
+EBUILD docker-19.03.15.ebuild 9217 BLAKE2B 8f0eeca1ce67fd8507ff2b8e5e21aaa3191325c3a27acc50d9749bcc235cc0e40d5fa3b47c4076e0a2b00699e1583a5dbe913a3661eb552816076f27f4b9c39c SHA512 a6a6e934368ab9a16635e5e4ef610ef8df087126e33ca59c90f253c5e8357ef761e60d58e275eca012176c65576d90f4213913137f84bb3d063278efe6173c6c
 EBUILD docker-20.10.2.ebuild 8102 BLAKE2B 5d5c0141716c1f08797d10b61bd0c80be27fdd7ccac70d7b02035e91afe105c6b3bf637cf86c35844f371637002559a977c4b819009329f7dbe68e0802385f45 SHA512 1b2b889559e70b5be6cee3a49149293ad30d0e2a67f01b0be27dcf75190a5f2cdf8fe489a81df0c0febd6f76b051ada8c73a3745f34ea2bf6a9fdbe4c02734b1
+EBUILD docker-20.10.3.ebuild 8102 BLAKE2B 1cda7fd700b096e0d21428f40e66331276e65269615eaa5f25f1a78fd1d8c9cb21419621479429dcd0bfa59119b69b1e6fdfa1d27b7b9ac37d9356a61050d6a1 SHA512 3755cc9759b8e544763869a6ff52d73060ddd04c149704c02de9e2ce23decec443ee95f162eaaf6a270a3191cdc604eaa5cccb86e30e6fe356b76690ea6be8a8
 MISC metadata.xml 1730 BLAKE2B 119ca97015c54afc8ea75d64e41d550afbcad5a3a6951f059d005e9a5086b467b26b348f6d29a7af4ff86016ecd8978fd20c9cacad41eb85a18756fc395d8a1b SHA512 c204ff1a267cbf386fa35d08b6a3ed91dae745d6bcadcad6e4cb085a510c53c37bda488ec077cfb9cbe57f2387e52a0fd00c153b7ef8d88225dd3c7d4b26f7e3
diff --git a/app-emulation/docker/docker-19.03.15.ebuild b/app-emulation/docker/docker-19.03.15.ebuild
new file mode 100644
index 000000000000..ac8fee3a6cc3
--- /dev/null
+++ b/app-emulation/docker/docker-19.03.15.ebuild
@@ -0,0 +1,333 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+EGO_PN="github.com/docker/docker-ce"
+
+if [[ ${PV} = *9999* ]]; then
+	# Docker cannot be fetched via "go get", thanks to autogenerated code
+	EGIT_REPO_URI="https://${EGO_PN}.git"
+	EGIT_CHECKOUT_DIR="${WORKDIR}/${P}/src/${EGO_PN}"
+	inherit git-r3
+else
+	DOCKER_GITCOMMIT=420b1d3625
+	MY_PV=${PV/_/-}
+	SRC_URI="https://${EGO_PN}/archive/v${MY_PV}.tar.gz -> ${P}.tar.gz"
+	KEYWORDS="amd64 ~arm arm64 ppc64 ~x86"
+	[ "$DOCKER_GITCOMMIT" ] || die "DOCKER_GITCOMMIT must be added manually for each bump!"
+	inherit golang-vcs-snapshot
+fi
+inherit bash-completion-r1 golang-base linux-info systemd udev
+
+DESCRIPTION="The core functions you need to create Docker images and run Docker containers"
+HOMEPAGE="https://www.docker.com/"
+LICENSE="Apache-2.0"
+SLOT="0"
+IUSE="apparmor aufs btrfs +container-init device-mapper hardened overlay seccomp selinux"
+
+# https://github.com/docker/docker/blob/master/project/PACKAGERS.md#build-dependencies
+BDEPEND="
+	>=dev-lang/go-1.13.12
+	dev-go/go-md2man
+	virtual/pkgconfig
+"
+
+DEPEND="
+	acct-group/docker
+	>=dev-db/sqlite-3.7.9:3
+	apparmor? ( sys-libs/libapparmor )
+	btrfs? ( >=sys-fs/btrfs-progs-3.16.1 )
+	device-mapper? ( >=sys-fs/lvm2-2.02.89[thin] )
+	seccomp? ( >=sys-libs/libseccomp-2.2.1 )
+"
+
+# https://github.com/docker/docker/blob/master/project/PACKAGERS.md#runtime-dependencies
+# https://github.com/docker/docker/blob/master/project/PACKAGERS.md#optional-dependencies
+# https://github.com/docker/docker-ce/tree/master/components/engine/hack/dockerfile/install
+# make sure containerd, docker-proxy, runc and tini pinned to exact versions from ^,
+# for appropriate brachch/version of course
+RDEPEND="
+	${DEPEND}
+	!sys-apps/systemd[-cgroup-hybrid(+)]
+	>=net-firewall/iptables-1.4
+	sys-process/procps
+	>=dev-vcs/git-1.7
+	>=app-arch/xz-utils-4.9
+	dev-libs/libltdl
+	~app-emulation/containerd-1.3.9[apparmor?,btrfs?,device-mapper?,seccomp?,selinux?]
+	~app-emulation/runc-1.0.0_rc10[apparmor?,seccomp?,selinux(-)?]
+	~app-emulation/docker-proxy-0.8.0_p20201105
+	container-init? ( >=sys-process/tini-0.18.0[static] )
+"
+
+RESTRICT="installsources strip"
+
+S="${WORKDIR}/${P}/src/${EGO_PN}"
+
+# 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
+	~VETH ~BRIDGE ~BRIDGE_NETFILTER
+	~IP_NF_FILTER ~IP_NF_TARGET_MASQUERADE
+	~NETFILTER_NETLINK ~NETFILTER_XT_MATCH_ADDRTYPE ~NETFILTER_XT_MATCH_CONNTRACK ~NETFILTER_XT_MATCH_IPVS
+	~IP_NF_NAT ~NF_NAT
+	~POSIX_MQUEUE
+
+	~USER_NS
+	~SECCOMP
+	~CGROUP_PIDS
+	~MEMCG_SWAP
+
+	~BLK_CGROUP ~BLK_DEV_THROTTLING
+	~CGROUP_PERF
+	~CGROUP_HUGETLB
+	~NET_CLS_CGROUP
+	~CFS_BANDWIDTH ~FAIR_GROUP_SCHED ~RT_GROUP_SCHED
+	~IP_VS ~IP_VS_PROTO_TCP ~IP_VS_PROTO_UDP ~IP_VS_NFCT ~IP_VS_RR
+
+	~VXLAN
+	~CRYPTO ~CRYPTO_AEAD ~CRYPTO_GCM ~CRYPTO_SEQIV ~CRYPTO_GHASH ~XFRM_ALGO ~XFRM_USER
+	~IPVLAN
+	~MACVLAN ~DUMMY
+
+	~OVERLAY_FS ~!OVERLAY_FS_REDIRECT_DIR
+	~EXT4_FS_SECURITY
+	~EXT4_FS_POSIX_ACL
+"
+
+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/engine/installation/binaries/#check-kernel-dependencies"
+	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 kernel_is lt 5 1; then
+		CONFIG_CHECK+="
+			~NF_NAT_IPV4
+			~IOSCHED_CFQ
+			~CFQ_GROUP_IOSCHED
+		"
+	fi
+
+	if kernel_is lt 5 2; then
+		CONFIG_CHECK+="
+			~NF_NAT_NEEDED
+		"
+	fi
+
+	if kernel_is lt 5 8; then
+		CONFIG_CHECK+="
+			~MEMCG_SWAP_ENABLED
+		"
+	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 is patched to kernel instead of using standalone"
+	fi
+
+	if use btrfs; then
+		CONFIG_CHECK+="
+			~BTRFS_FS
+			~BTRFS_FS_POSIX_ACL
+		"
+	fi
+
+	if use device-mapper; then
+		CONFIG_CHECK+="
+			~BLK_DEV_DM ~DM_THIN_PROVISIONING ~EXT4_FS ~EXT4_FS_POSIX_ACL ~EXT4_FS_SECURITY
+		"
+	fi
+
+	linux-info_pkg_setup
+}
+
+src_compile() {
+	export GOPATH="${WORKDIR}/${P}"
+
+	# 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/$(get_libdir)"
+
+	# if we're building from a tarball, we need the GITCOMMIT value
+	[[ ${DOCKER_GITCOMMIT} ]] && export DOCKER_GITCOMMIT
+
+	# fake golang layout
+	ln -s docker-ce/components/engine ../docker || die
+	ln -s docker-ce/components/cli ../cli || die
+
+	# 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; do
+		if use $tag; then
+			DOCKER_BUILDTAGS+=" $tag"
+		fi
+	done
+
+	pushd components/engine || die
+
+	if use hardened; then
+		sed -i "s/EXTLDFLAGS_STATIC='/&-fno-PIC /" hack/make.sh || die
+		grep -q -- '-fno-PIC' hack/make.sh || die 'hardened sed failed'
+		sed  "s/LDFLAGS_STATIC_DOCKER='/&-extldflags -fno-PIC /" \
+			-i hack/make/dynbinary-daemon || die
+		grep -q -- '-fno-PIC' hack/make/dynbinary-daemon || die 'hardened sed failed'
+	fi
+
+	# build daemon
+	VERSION="$(cat ../../VERSION)" \
+	./hack/make.sh dynbinary || die 'dynbinary failed'
+
+	popd || die # components/engine
+
+	pushd components/cli || die
+
+	# build cli
+	DISABLE_WARN_OUTSIDE_CONTAINER=1 emake \
+		LDFLAGS="$(usex hardened '-extldflags -fno-PIC' '')" \
+		VERSION="$(cat ../../VERSION)" \
+		GITCOMMIT="${DOCKER_GITCOMMIT}" \
+		dynbinary
+
+	# build man pages
+	go build -o gen-manpages github.com/docker/cli/man || die
+	./gen-manpages --root . --target ./man/man1 || die
+	./man/md2man-all.sh -q || die
+	rm gen-manpages || die
+	# see "components/cli/scripts/docs/generate-man.sh" (which also does "go get" for go-md2man)
+
+	popd || die # components/cli
+}
+
+src_install() {
+	dosym containerd /usr/bin/docker-containerd
+	dosym containerd-shim /usr/bin/docker-containerd-shim
+	dosym runc /usr/bin/docker-runc
+	use container-init && dosym tini /usr/bin/docker-init
+
+	pushd components/engine || die
+	newbin bundles/dynbinary-daemon/dockerd-${PV} dockerd
+
+	newinitd contrib/init/openrc/docker.initd docker
+	newconfd contrib/init/openrc/docker.confd docker
+
+	systemd_dounit contrib/init/systemd/docker.{service,socket}
+
+	udev_dorules contrib/udev/*.rules
+
+	dodoc AUTHORS CONTRIBUTING.md CHANGELOG.md NOTICE README.md
+	dodoc -r docs/*
+
+	insinto /usr/share/vim/vimfiles
+	doins -r contrib/syntax/vim/ftdetect
+	doins -r contrib/syntax/vim/syntax
+
+	# note: intentionally not using "doins" so that we preserve +x bits
+	dodir /usr/share/${PN}/contrib
+	cp -R contrib/* "${ED}/usr/share/${PN}/contrib"
+	popd || die # components/engine
+
+	pushd components/cli || die
+
+	newbin build/docker-* docker
+
+	doman man/man*/*
+
+	sed -i 's@dockerd\?\.exe@@g' contrib/completion/bash/docker || die
+	dobashcomp contrib/completion/bash/*
+	bashcomp_alias docker dockerd
+	insinto /usr/share/fish/vendor_completions.d/
+	doins contrib/completion/fish/docker.fish
+	insinto /usr/share/zsh/site-functions
+	doins contrib/completion/zsh/_*
+	popd || die # components/cli
+}
+
+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:"
+	if systemd_is_booted || has_version sys-apps/systemd; then
+		elog "  systemctl enable docker.service"
+	else
+		elog "  rc-update add docker default"
+	fi
+	elog
+	elog "To use Docker as a non-root user, add yourself to the 'docker' group:"
+	elog '  usermod -aG docker <youruser>'
+	elog
+
+	if use device-mapper; then
+		elog " Devicemapper storage driver has been deprecated"
+		elog " It will be removed in a future release"
+		elog
+	fi
+
+	if use overlay; then
+		elog " Overlay storage driver/USEflag has been deprecated"
+		elog " in favor of overlay2 (enabled unconditionally)"
+		elog
+	fi
+
+	if has_version sys-fs/zfs; then
+		elog " ZFS storage driver is available"
+		elog " Check https://docs.docker.com/storage/storagedriver/zfs-driver for more info"
+		elog
+	fi
+}
diff --git a/app-emulation/docker/docker-20.10.3.ebuild b/app-emulation/docker/docker-20.10.3.ebuild
new file mode 100644
index 000000000000..b8b0e6129674
--- /dev/null
+++ b/app-emulation/docker/docker-20.10.3.ebuild
@@ -0,0 +1,293 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+EGO_PN=github.com/docker/docker
+GIT_COMMIT=46229ca1d8
+inherit bash-completion-r1 linux-info systemd udev golang-vcs-snapshot
+
+DESCRIPTION="The core functions you need to create Docker images and run Docker containers"
+HOMEPAGE="https://www.docker.com/"
+MY_PV=${PV/_/-}
+SRC_URI="https://github.com/moby/moby/archive/v${MY_PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="Apache-2.0"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc64 ~x86"
+IUSE="apparmor aufs btrfs +cli +container-init device-mapper hardened overlay seccomp"
+
+DEPEND="
+	acct-group/docker
+	>=dev-db/sqlite-3.7.9:3
+	apparmor? ( sys-libs/libapparmor )
+	btrfs? ( >=sys-fs/btrfs-progs-3.16.1 )
+	device-mapper? ( >=sys-fs/lvm2-2.02.89[thin] )
+	seccomp? ( >=sys-libs/libseccomp-2.2.1 )
+"
+
+# https://github.com/moby/moby/blob/master/project/PACKAGERS.md#runtime-dependencies
+# https://github.com/moby/moby/blob/master/project/PACKAGERS.md#optional-dependencies
+# https://github.com/moby/moby/tree/master//hack/dockerfile/install
+# make sure containerd, docker-proxy, runc and tini pinned to exact versions from ^,
+# for appropriate branchch/version of course
+RDEPEND="
+	${DEPEND}
+	>=net-firewall/iptables-1.4
+	sys-process/procps
+	>=dev-vcs/git-1.7
+	>=app-arch/xz-utils-4.9
+	dev-libs/libltdl
+	~app-emulation/containerd-1.4.3[apparmor?,btrfs?,device-mapper?,seccomp?]
+	~app-emulation/runc-1.0.0_rc92[apparmor?,seccomp?]
+	~app-emulation/docker-proxy-0.8.0_p20201215
+	cli? ( app-emulation/docker-cli )
+	container-init? ( >=sys-process/tini-0.19.0[static] )
+"
+
+# https://github.com/docker/docker/blob/master/project/PACKAGERS.md#build-dependencies
+BDEPEND="
+	>=dev-lang/go-1.13.12
+	dev-go/go-md2man
+	virtual/pkgconfig
+"
+
+RESTRICT="installsources strip"
+
+S="${WORKDIR}/${P}/src/${EGO_PN}"
+
+# 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
+	~VETH ~BRIDGE ~BRIDGE_NETFILTER
+	~IP_NF_FILTER ~IP_NF_TARGET_MASQUERADE
+	~NETFILTER_NETLINK ~NETFILTER_XT_MATCH_ADDRTYPE ~NETFILTER_XT_MATCH_CONNTRACK ~NETFILTER_XT_MATCH_IPVS
+	~IP_NF_NAT ~NF_NAT
+	~POSIX_MQUEUE
+
+	~USER_NS
+	~SECCOMP
+	~CGROUP_PIDS
+	~MEMCG_SWAP
+
+	~BLK_CGROUP ~BLK_DEV_THROTTLING
+	~CGROUP_PERF
+	~CGROUP_HUGETLB
+	~NET_CLS_CGROUP
+	~CFS_BANDWIDTH ~FAIR_GROUP_SCHED ~RT_GROUP_SCHED
+	~IP_VS ~IP_VS_PROTO_TCP ~IP_VS_PROTO_UDP ~IP_VS_NFCT ~IP_VS_RR
+
+	~VXLAN
+	~CRYPTO ~CRYPTO_AEAD ~CRYPTO_GCM ~CRYPTO_SEQIV ~CRYPTO_GHASH ~XFRM_ALGO ~XFRM_USER
+	~IPVLAN
+	~MACVLAN ~DUMMY
+
+	~OVERLAY_FS ~!OVERLAY_FS_REDIRECT_DIR
+	~EXT4_FS_SECURITY
+	~EXT4_FS_POSIX_ACL
+"
+
+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/engine/installation/binaries/#check-kernel-dependencies"
+	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 kernel_is lt 5 1; then
+		CONFIG_CHECK+="
+			~NF_NAT_IPV4
+			~IOSCHED_CFQ
+			~CFQ_GROUP_IOSCHED
+		"
+	fi
+
+	if kernel_is lt 5 2; then
+		CONFIG_CHECK+="
+			~NF_NAT_NEEDED
+		"
+	fi
+
+	if kernel_is lt 5 8; then
+		CONFIG_CHECK+="
+			~MEMCG_SWAP_ENABLED
+		"
+	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 is patched to kernel instead of using standalone"
+	fi
+
+	if use btrfs; then
+		CONFIG_CHECK+="
+			~BTRFS_FS
+			~BTRFS_FS_POSIX_ACL
+		"
+	fi
+
+	if use device-mapper; then
+		CONFIG_CHECK+="
+			~BLK_DEV_DM ~DM_THIN_PROVISIONING ~EXT4_FS ~EXT4_FS_POSIX_ACL ~EXT4_FS_SECURITY
+		"
+	fi
+
+	linux-info_pkg_setup
+}
+
+src_compile() {
+	export DOCKER_GITCOMMIT="${GIT_COMMIT}"
+	export GOPATH="${WORKDIR}/${P}"
+
+	# setup CFLAGS and LDFLAGS for separate build target
+	# see https://github.com/tianon/docker-overlay/pull/10
+	export CGO_CFLAGS="-I${ROOT}/usr/include"
+	export CGO_LDFLAGS="-L${ROOT}/usr/$(get_libdir)"
+
+	# 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; do
+		if use $tag; then
+			DOCKER_BUILDTAGS+=" $tag"
+		fi
+	done
+
+	if use hardened; then
+		sed -i "s/EXTLDFLAGS_STATIC='/&-fno-PIC /" hack/make.sh || die
+		grep -q -- '-fno-PIC' hack/make.sh || die 'hardened sed failed'
+		sed  "s/LDFLAGS_STATIC_DOCKER='/&-extldflags -fno-PIC /" \
+			-i hack/make/dynbinary-daemon || die
+		grep -q -- '-fno-PIC' hack/make/dynbinary-daemon || die 'hardened sed failed'
+	fi
+
+	# build daemon
+	./hack/make.sh dynbinary || die 'dynbinary failed'
+}
+
+src_install() {
+	dosym containerd /usr/bin/docker-containerd
+	dosym containerd-shim /usr/bin/docker-containerd-shim
+	dosym runc /usr/bin/docker-runc
+	use container-init && dosym tini /usr/bin/docker-init
+	newbin bundles/dynbinary-daemon/dockerd dockerd
+
+	newinitd contrib/init/openrc/docker.initd docker
+	newconfd contrib/init/openrc/docker.confd docker
+
+	systemd_dounit contrib/init/systemd/docker.{service,socket}
+
+	udev_dorules contrib/udev/*.rules
+
+	dodoc AUTHORS CONTRIBUTING.md CHANGELOG.md NOTICE README.md
+	dodoc -r docs/*
+
+	# note: intentionally not using "doins" so that we preserve +x bits
+	dodir /usr/share/${PN}/contrib
+	cp -R contrib/* "${ED}/usr/share/${PN}/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:"
+	if systemd_is_booted || has_version sys-apps/systemd; then
+		elog "  systemctl enable docker.service"
+	else
+		elog "  rc-update add docker default"
+	fi
+	elog
+	elog "To use Docker as a non-root user, add yourself to the 'docker' group:"
+	elog '  usermod -aG docker <youruser>'
+	elog
+
+	if use device-mapper; then
+		elog " Devicemapper storage driver has been deprecated"
+		elog " It will be removed in a future release"
+		elog
+	fi
+
+	if use overlay; then
+		elog " Overlay storage driver/USEflag has been deprecated"
+		elog " in favor of overlay2 (enabled unconditionally)"
+		elog
+	fi
+
+	if has_version sys-fs/zfs; then
+		elog " ZFS storage driver is available"
+		elog " Check https://docs.docker.com/storage/storagedriver/zfs-driver for more info"
+		elog
+	fi
+
+	if use cli; then
+		ewarn "Starting with docker 20.10.2, docker has been split into"
+		ewarn "two packages upstream, so Gentoo has followed suit."
+		ewarn
+		ewarn "app-emulation/docker contains the daemon and"
+		ewarn "app-emulation/docker-cli contains the docker command."
+		ewarn
+		ewarn "docker currently installs docker-cli using the cli use flag."
+		ewarn
+		ewarn "This use flag is temporary, so you need to take the"
+		ewarn "following actions:"
+		ewarn
+		ewarn "First, disable the cli use flag for app-emulation/docker"
+		ewarn
+		ewarn "Then, if you need docker-cli and docker on the same machine,"
+		ewarn "run the following command:"
+		ewarn
+		ewarn "# emerge --noreplace docker-cli"
+		ewarn
+	fi
+}