# Copyright 1999-2025 Gentoo Authors

# Distributed under the terms of the GNU General Public License v2

EAPI=8

MY_PV=${PV/_/-}

inherit go-module linux-info optfeature systemd toolchain-funcs udev

GIT_COMMIT=c710b88579fcb5e0d53f96dcae976d79323b9166

DESCRIPTION="The core functions you need to create Docker images and run Docker containers"

HOMEPAGE="https://www.docker.com/"

SRC_URI="https://github.com/moby/moby/archive/v${MY_PV}.tar.gz -> ${P}.tar.gz"

S="${WORKDIR}/moby-${PV}"

LICENSE="Apache-2.0"

SLOT="0"

KEYWORDS="amd64 ~arm arm64 ppc64 ~riscv ~x86"

IUSE="apparmor btrfs +container-init cuda +overlay2 seccomp selinux systemd"

DEPEND="

	acct-group/docker

	>=dev-db/sqlite-3.7.9:3

	apparmor? ( sys-libs/libapparmor )

	btrfs? ( >=sys-fs/btrfs-progs-3.16.1 )

	seccomp? ( >=sys-libs/libseccomp-2.2.1 )

	systemd? ( sys-apps/systemd )

"

# https://github.com/moby/moby/blob/master/project/PACKAGERS.md#runtime-dependencies

# https://github.com/moby/moby/blob/master/project/PACKAGERS.md#optional-dependencies

RDEPEND="

	${DEPEND}

	>=net-firewall/iptables-1.4

	sys-process/procps

	>=dev-vcs/git-1.7

	>=app-arch/xz-utils-4.9

	>=app-containers/containerd-1.7.24[apparmor?,btrfs?,seccomp?]

	>=app-containers/runc-1.2.2[apparmor?,seccomp?]

	!app-containers/docker-proxy

	!<app-containers/docker-cli-${PV}

	container-init? ( >=sys-process/tini-0.19.0[static] )

	cuda? ( app-containers/nvidia-container-toolkit )

	selinux? ( sec-policy/selinux-docker )

"

# https://github.com/docker/docker/blob/master/project/PACKAGERS.md#build-dependencies

BDEPEND="

	dev-go/go-md2man

	virtual/pkgconfig

"

# tests require running dockerd as root and downloading containers

RESTRICT="installsources strip test"

# https://bugs.gentoo.org/748984 https://github.com/etcd-io/etcd/pull/12552

pkg_setup() {

	# this is based on "contrib/check-config.sh" from upstream's sources

	# required features.

	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_XT_MATCH_ADDRTYPE

		~NETFILTER_XT_MATCH_CONNTRACK

		~NETFILTER_XT_MATCH_IPVS

		~NETFILTER_XT_MARK

		~IP_NF_NAT ~NF_NAT

		~POSIX_MQUEUE

	"

	WARNING_POSIX_MQUEUE="CONFIG_POSIX_MQUEUE: is required for bind-mounting /dev/mqueue into containers"

	if kernel_is lt 4 8; then

		CONFIG_CHECK+="

			~DEVPTS_MULTIPLE_INSTANCES

		"

	fi

	if kernel_is le 5 1; then

		CONFIG_CHECK+="

			~NF_NAT_IPV4

		"

	fi

	if kernel_is le 5 2; then

		CONFIG_CHECK+="

			~NF_NAT_NEEDED

		"

	fi

	if kernel_is ge 4 15; then

		CONFIG_CHECK+="

			~CGROUP_BPF

		"

	fi

	# optional features

	CONFIG_CHECK+="

		~USER_NS

	"

	if use seccomp; then

		CONFIG_CHECK+="

			~SECCOMP ~SECCOMP_FILTER

		"

	fi

	CONFIG_CHECK+="

		~CGROUP_PIDS

	"

	if kernel_is lt 6 1; then

		CONFIG_CHECK+="

			~MEMCG_SWAP

			"

	fi

	if kernel_is le 5 8; then

		CONFIG_CHECK+="

			~MEMCG_SWAP_ENABLED

		"

	fi

	CONFIG_CHECK+="

		~!LEGACY_VSYSCALL_NATIVE

		"

	if kernel_is lt 5 19; then

		CONFIG_CHECK+="

			~LEGACY_VSYSCALL_EMULATE

			"

	fi

	CONFIG_CHECK+="

		~!LEGACY_VSYSCALL_NONE

		"

	WARNING_LEGACY_VSYSCALL_NONE="CONFIG_LEGACY_VSYSCALL_NONE enabled: \

		Containers with <=glibc-2.13 will not work"

	if kernel_is le 4 5; then

		CONFIG_CHECK+="

			~MEMCG_KMEM

		"

	fi

	if kernel_is lt 5; then

		CONFIG_CHECK+="

			~IOSCHED_CFQ ~CFQ_GROUP_IOSCHED

		"

	fi

	CONFIG_CHECK+="

		~BLK_CGROUP ~BLK_DEV_THROTTLING

		~CGROUP_PERF

		~CGROUP_HUGETLB

		~NET_CLS_CGROUP ~CGROUP_NET_PRIO

		~CFS_BANDWIDTH ~FAIR_GROUP_SCHED

		~IP_NF_TARGET_REDIRECT

		~IP_VS

		~IP_VS_NFCT

		~IP_VS_PROTO_TCP

		~IP_VS_PROTO_UDP

		~IP_VS_RR

		"

	if use selinux; then

		CONFIG_CHECK+="

			~SECURITY_SELINUX

			"

	fi

	if use apparmor; then

		CONFIG_CHECK+="

			~SECURITY_APPARMOR

			"

	fi

	# if ! is_set EXT4_USE_FOR_EXT2; then

	#	check_flags EXT3_FS EXT3_FS_XATTR EXT3_FS_POSIX_ACL EXT3_FS_SECURITY

	#	if ! is_set EXT3_FS || ! is_set EXT3_FS_XATTR || ! is_set EXT3_FS_POSIX_ACL || ! is_set EXT3_FS_SECURITY; then

	#		echo "    $(wrap_color '(enable these ext3 configs if you are using ext3 as backing filesystem)' bold black)"

	#	fi

	# fi

	CONFIG_CHECK+="

		~EXT4_FS ~EXT4_FS_POSIX_ACL ~EXT4_FS_SECURITY

	"

	# if ! is_set EXT4_FS || ! is_set EXT4_FS_POSIX_ACL || ! is_set EXT4_FS_SECURITY; then

	#	if is_set EXT4_USE_FOR_EXT2; then

	#		echo "    $(wrap_color 'enable these ext4 configs if you are using ext3 or ext4 as backing filesystem' bold black)"

	#	else

	#		echo "    $(wrap_color 'enable these ext4 configs if you are using ext4 as backing filesystem' bold black)"

	#	fi

	# fi

	# network drivers

	CONFIG_CHECK+="

		~VXLAN ~BRIDGE_VLAN_FILTERING

		~CRYPTO ~CRYPTO_AEAD ~CRYPTO_GCM ~CRYPTO_SEQIV ~CRYPTO_GHASH

		~XFRM ~XFRM_USER ~XFRM_ALGO ~INET_ESP

	"

	if kernel_is le 5 3; then

		CONFIG_CHECK+="

			~INET_XFRM_MODE_TRANSPORT

		"

	fi

	CONFIG_CHECK+="

		~IPVLAN

		"

	CONFIG_CHECK+="

		~MACVLAN ~DUMMY

		"

	CONFIG_CHECK+="

		~NF_NAT_FTP ~NF_CONNTRACK_FTP ~NF_NAT_TFTP ~NF_CONNTRACK_TFTP

	"

	# storage drivers

	if use btrfs; then

		CONFIG_CHECK+="

			~BTRFS_FS

			~BTRFS_FS_POSIX_ACL

		"

	fi

	CONFIG_CHECK+="

		~OVERLAY_FS

	"

	linux-info_pkg_setup

}

src_unpack() {

	default

	cd "${S}"

	[[ -f go.mod ]] || ln -s vendor.mod go.mod || die

	[[ -f go.sum ]] || ln -s vendor.sum go.sum || die

}

src_compile() {

	export DOCKER_GITCOMMIT="${GIT_COMMIT}"

	export VERSION=${PV}

	tc-export PKG_CONFIG

	# setup CFLAGS and LDFLAGS for separate build target

	# see https://github.com/tianon/docker-overlay/pull/10

	CGO_CFLAGS+=" -I${ESYSROOT}/usr/include"

	CGO_LDFLAGS+=" -L${ESYSROOT}/usr/$(get_libdir)"

	# let's set up some optional features :)

	export DOCKER_BUILDTAGS=''

	for gd in btrfs overlay2; 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

	export AUTO_GOPATH=1

	export EXCLUDE_AUTO_BUILDTAG_JOURNALD=$(usex systemd '' 'y')

	export GO_MD2MAN=/usr/bin/go-md2man

	# build binaries

	./hack/make.sh dynbinary || die 'dynbinary failed'

	# build man page

	cd man || die

	emake || die

}

src_install() {

	dosym containerd /usr/bin/docker-containerd

	dosym containerd-shim-runc-v2 /usr/bin/docker-containerd-shim

	dosym runc /usr/bin/docker-runc

	use container-init && dosym tini /usr/bin/docker-init

	dobin bundles/dynbinary-daemon/dockerd

	dobin bundles/dynbinary-daemon/docker-proxy

	for f in dockerd-rootless-setuptool.sh dockerd-rootless.sh; do

		dosym ../share/docker/contrib/${f} /usr/bin/${f}

	done

	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 NOTICE README.md

	dodoc -r docs/*

	doman man/man8/dockerd.8

	# 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 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

	optfeature "rootless mode support" sys-apps/shadow

	optfeature "rootless mode support" sys-apps/rootlesskit

	optfeature_header "for rootless mode you also need a network stack"

	optfeature "rootless mode network stack" app-containers/slirp4netns

}

pkg_postrm() {

	udev_reload

}