app-containers/lxd: enhance openrc init.d file

 - attempt to only create /sys/fs/cgroup/systemd if rc.conf has support for it,
 - enhance the pkg_postinst messages,
 - remove 'ipv6' use flag as the dependencies already enable it by default.

Signed-off-by: Joonas Niilola <juippis@gentoo.org>

2 files changed, 275 insertions, 0 deletions

diff --git a/app-containers/lxd/files/lxd-5.0.2-r1.initd b/app-containers/lxd/files/lxd-5.0.2-r1.initd
new file mode 100644
index 000000000000..288729a6831c
--- /dev/null
+++ b/app-containers/lxd/files/lxd-5.0.2-r1.initd
@@ -0,0 +1,60 @@
+#!/sbin/openrc-run
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+DAEMON=/usr/sbin/lxd
+PIDFILE=/run/lxd.pid
+
+depend() {
+	need net
+	need lxcfs
+}
+
+start() {
+	ebegin "Starting lxd service"
+
+	modprobe -f loop > /dev/null 2>&1
+
+	# Fix permissions on /var/lib/lxd and make sure it exists.
+	# Create a log directory for lxd with correct permissions.
+	install -d /var/lib/lxd --group lxd --owner root --mode 0775
+	install -d /var/log/lxd --group lxd --owner root
+
+	start-stop-daemon --start \
+		--pidfile ${PIDFILE} \
+		--exec ${DAEMON} \
+		--background \
+		--make-pidfile \
+		-- \
+		${LXD_OPTIONS}
+	eend ${?}
+
+	# Create necessary systemd paths in order for systemd containers to work on openrc host.
+	# /etc/rc.conf should have following values:
+	# rc_cgroup_mode="hybrid"
+	# rc_cgroup_controllers="yes"
+	if [ -d /sys/fs/cgroup/unified ] &&
+	[ ! -d /sys/fs/cgroup/systemd ]; then
+		install -d /sys/fs/cgroup/systemd --group lxd --owner root
+		mount -t cgroup -o none,name=systemd systemd /sys/fs/cgroup/systemd
+	fi
+}
+
+stop() {
+	if [ "${RC_CMD}" = restart ]; then
+		ebegin "Stopping lxd service (but not containers)"
+		# start-stop-daemon sends SIGTERM with a timeout of 5s by default.
+		# SIGTERM indicates to LXD that it will be stopped temporarily.
+		# Instances will keep running.
+		start-stop-daemon --stop --quiet -p "${PIDFILE}"
+		eend ${?}
+	else
+		ebegin "Stopping lxd service and containers, waiting 40s"
+		# SIGPWR indicates to LXD that the host is going down.
+		# LXD will do a clean shutdown of all instances.
+		# After 30s all remaining instances will be killed.
+		# We wait up to 40s for LXD.
+		start-stop-daemon --stop --quiet -R SIGPWR/40 -p "${PIDFILE}"
+		eend ${?}
+	fi
+}
diff --git a/app-containers/lxd/lxd-5.0.1-r4.ebuild b/app-containers/lxd/lxd-5.0.1-r4.ebuild
new file mode 100644
index 000000000000..9f824c73165d
--- /dev/null
+++ b/app-containers/lxd/lxd-5.0.1-r4.ebuild
@@ -0,0 +1,215 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit bash-completion-r1 go-module linux-info optfeature systemd verify-sig
+
+DESCRIPTION="Modern, secure and powerful system container and virtual machine manager"
+HOMEPAGE="https://linuxcontainers.org/lxd/introduction/ https://github.com/lxc/lxd"
+SRC_URI="https://linuxcontainers.org/downloads/lxd/${P}.tar.gz
+	https://github.com/lxc/lxd/commit/d55a590ea50a75c3cb2ea67894be8253074d6093.patch -> lxd-5.0.2-move-shellcheck-version-call-into-static-analysis.patch
+	https://patch-diff.githubusercontent.com/raw/lxc/lxd/pull/11011.patch -> lxd-5.8-add-tcp-keepalives-to-exec-channels.patch
+	verify-sig? ( https://linuxcontainers.org/downloads/lxd/${P}.tar.gz.asc )"
+
+LICENSE="Apache-2.0"
+SLOT="0"
+KEYWORDS="~amd64 ~arm64 ~x86"
+IUSE="apparmor nls"
+
+DEPEND="acct-group/lxd
+	app-arch/xz-utils
+	>=app-containers/lxc-3.0.0[apparmor?,seccomp(+)]
+	dev-db/sqlite:3
+	dev-libs/dqlite:=
+	dev-libs/lzo
+	dev-libs/raft[lz4]
+	>=dev-util/xdelta-3.0[lzma(+)]
+	net-dns/dnsmasq[dhcp,ipv6(+)]
+	sys-libs/libcap
+	virtual/udev"
+RDEPEND="${DEPEND}
+	net-firewall/ebtables
+	net-firewall/iptables[ipv6(+)]
+	sys-apps/iproute2[ipv6(+)]
+	sys-fs/fuse:*
+	>=sys-fs/lxcfs-5.0.0
+	sys-fs/squashfs-tools[lzma]
+	virtual/acl"
+BDEPEND="dev-lang/go
+	nls? ( sys-devel/gettext )
+	verify-sig? ( sec-keys/openpgp-keys-linuxcontainers )"
+
+CONFIG_CHECK="
+	~CGROUPS
+	~IPC_NS
+	~NET_NS
+	~PID_NS
+
+	~SECCOMP
+	~USER_NS
+	~UTS_NS
+
+	~KVM
+	~MACVTAP
+	~VHOST_VSOCK
+"
+
+ERROR_IPC_NS="CONFIG_IPC_NS is required."
+ERROR_NET_NS="CONFIG_NET_NS is required."
+ERROR_PID_NS="CONFIG_PID_NS is required."
+ERROR_SECCOMP="CONFIG_SECCOMP is required."
+ERROR_UTS_NS="CONFIG_UTS_NS is required."
+
+WARNING_KVM="CONFIG_KVM and CONFIG_KVM_AMD/-INTEL is required for virtual machines."
+WARNING_MACVTAP="CONFIG_MACVTAP is required for virtual machines."
+WARNING_VHOST_VSOCK="CONFIG_VHOST_VSOCK is required for virtual machines."
+
+# Go magic.
+QA_PREBUILT="/usr/bin/fuidshift
+	/usr/bin/lxc
+	/usr/bin/lxc-to-lxd
+	/usr/bin/lxd-agent
+	/usr/bin/lxd-benchmark
+	/usr/bin/lxd-migrate
+	/usr/sbin/lxd"
+
+VERIFY_SIG_OPENPGP_KEY_PATH=${BROOT}/usr/share/openpgp-keys/linuxcontainers.asc
+
+# The testsuite must be run as root.
+# make: *** [Makefile:156: check] Error 1
+RESTRICT="test"
+
+GOPATH="${S}/_dist"
+
+PATCHES=( "${DISTDIR}"/lxd-5.0.2-move-shellcheck-version-call-into-static-analysis.patch
+	"${DISTDIR}"/lxd-5.8-add-tcp-keepalives-to-exec-channels.patch )
+
+src_unpack() {
+	if use verify-sig; then
+		verify-sig_verify_detached "${DISTDIR}"/${P}.tar.gz{,.asc}
+	fi
+
+	default
+}
+
+src_prepare() {
+	export GOPATH="${S}/_dist"
+
+	default
+
+	sed -i \
+		-e "s:\./configure:./configure --prefix=/usr --libdir=${EPREFIX}/usr/lib/lxd:g" \
+		-e "s:make:make ${MAKEOPTS}:g" \
+		Makefile || die
+
+	# Fix hardcoded ovmf file path, see bug 763180
+	sed -i \
+		-e "s:/usr/share/OVMF:/usr/share/edk2-ovmf:g" \
+		-e "s:OVMF_VARS.ms.fd:OVMF_VARS.fd:g" \
+		doc/environment.md \
+		lxd/apparmor/instance.go \
+		lxd/apparmor/instance_qemu.go \
+		lxd/instance/drivers/driver_qemu.go || die "Failed to fix hardcoded ovmf paths."
+
+	# Fix hardcoded virtfs-proxy-helper file path, see bug 798924
+	sed -i \
+		-e "s:/usr/lib/qemu/virtfs-proxy-helper:/usr/libexec/virtfs-proxy-helper:g" \
+		lxd/device/device_utils_disk.go || die "Failed to fix virtfs-proxy-helper path."
+
+	cp "${FILESDIR}"/lxd-4.0.9-r1.service "${T}"/lxd.service || die
+	if use apparmor; then
+		sed -i \
+			'/^EnvironmentFile=.*/a ExecStartPre=\/usr\/libexec\/lxc\/lxc-apparmor-load' \
+			"${T}"/lxd.service || die
+	fi
+
+	# Disable -Werror's from go modules.
+	find "${S}" -name "cgo.go" -exec sed -i "s/ -Werror / /g" {} + || die
+}
+
+src_configure() { :; }
+
+src_compile() {
+	export GOPATH="${S}/_dist"
+	export CGO_LDFLAGS_ALLOW="-Wl,-z,now"
+
+	for k in fuidshift lxd-benchmark lxc lxc-to-lxd; do
+		go install -v -x "${S}/${k}" || die "failed compiling ${k}"
+	done
+
+	go install -v -x -tags libsqlite3 "${S}"/lxd || die "Failed to build the daemon"
+
+	# Needs to be built statically
+	CGO_ENABLED=0 go install -v -tags netgo "${S}"/lxd-migrate
+	CGO_ENABLED=0 go install -v -tags agent,netgo "${S}"/lxd-agent
+
+	use nls && emake build-mo
+}
+
+src_test() {
+	emake check
+}
+
+src_install() {
+	export GOPATH="${S}/_dist"
+	local bindir="_dist/bin"
+
+	dosbin ${bindir}/lxd
+
+	for l in fuidshift lxd-agent lxd-benchmark lxd-migrate lxc lxc-to-lxd; do
+		dobin ${bindir}/${l}
+	done
+
+	newbashcomp scripts/bash/lxd-client lxc
+
+	newconfd "${FILESDIR}"/lxd-4.0.0.confd lxd
+	newinitd "${FILESDIR}"/lxd-5.0.2-r1.initd lxd
+
+	systemd_dounit "${T}"/lxd.service
+	systemd_newunit "${FILESDIR}"/lxd-containers-4.0.0.service lxd-containers.service
+	systemd_newunit "${FILESDIR}"/lxd-4.0.0.socket lxd.socket
+
+	dodoc AUTHORS
+	dodoc -r doc/*
+	use nls && domo po/*.mo
+}
+
+pkg_postinst() {
+	elog
+	elog "Consult https://wiki.gentoo.org/wiki/LXD for more information,"
+	elog "including a Quick Start."
+	elog "For virtual machine support, see:"
+	elog "https://wiki.gentoo.org/wiki/LXD#Virtual_machines"
+	elog
+	elog "Please run 'lxc-checkconfig' to see all optional kernel features."
+	elog
+	optfeature "virtual machine support" app-emulation/qemu[spice,usbredir,virtfs]
+	optfeature "btrfs storage backend" sys-fs/btrfs-progs
+	optfeature "lvm2 storage backend" sys-fs/lvm2
+	optfeature "zfs storage backend" sys-fs/zfs
+	elog
+	elog "Be sure to add your local user to the lxd group."
+
+	if [[ ${REPLACING_VERSIONS} ]] &&
+	ver_test ${REPLACING_VERSIONS} -lt 5.0.1 &&
+	has_version app-emulation/qemu[spice,usbredir,virtfs]; then
+		ewarn ""
+		ewarn "You're updating from <5.0.1. Due to incompatible API updates in the lxd-agent"
+		ewarn "product, you'll have to restart any running virtual machines before they work"
+		ewarn "properly."
+		ewarn ""
+		ewarn "Run: 'lxc restart your-vm' after the update for your vm's managed by lxd."
+		ewarn ""
+	fi
+
+	if [[ ${REPLACING_VERSIONS} ]] &&
+	has_version "sys-apps/openrc"; then
+		elog ""
+		elog "The new init.d script will attempt to mount "
+		elog "  /sys/fs/cgroup/systemd"
+		elog "by default, which is needed to run systemd containers with openrc host."
+		elog "See the /etc/init.d/lxd file for requirements."
+		elog ""
+	fi
+}