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# Copyright 2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=7
inherit linux-info
DESCRIPTION="Secure and fast microVMs for serverless computing (static build)"
HOMEPAGE="https://firecracker-microvm.github.io https://github.com/firecracker-microvm/firecracker"
SRC_URI="
amd64? (
https://github.com/firecracker-microvm/firecracker/releases/download/v${PV}/firecracker-v${PV}-x86_64.tgz
)
arm64? (
https://github.com/firecracker-microvm/firecracker/releases/download/v${PV}/firecracker-v${PV}-aarch64.tgz
)"
LICENSE="|| ( Apache-2.0 MIT Apache-2.0-with-LLVM-exceptions ) MPL-2.0"
SLOT="0"
KEYWORDS="~amd64 ~arm64"
RESTRICT="test strip"
RDEPEND="!app-emulation/firecracker
acct-group/kvm"
QA_PREBUILT="/usr/bin/firecracker
/usr/bin/jailer"
S="${WORKDIR}"
pkg_pretend() {
if use kernel_linux && kernel_is lt 4 14; then
eerror "Firecracker requires a host kernel of 4.14 or higher."
elif use kernel_linux; then
if ! linux_config_exists; then
eerror "Unable to check your kernel for KVM support"
else
CONFIG_CHECK="~KVM ~TUN ~BRIDGE ~VHOST_VSOCK"
ERROR_KVM="You must enable KVM in your kernel to continue"
ERROR_KVM_AMD="If you have an AMD CPU, you must enable KVM_AMD in"
ERROR_KVM_AMD+=" your kernel configuration."
ERROR_KVM_INTEL="If you have an Intel CPU, you must enable"
ERROR_KVM_INTEL+=" KVM_INTEL in your kernel configuration."
ERROR_TUN="You will need the Universal TUN/TAP driver compiled"
ERROR_TUN+=" into your kernel or loaded as a module to use"
ERROR_TUN+=" virtual network devices."
ERROR_BRIDGE="You will also need support for 802.1d"
ERROR_BRIDGE+=" Ethernet Bridging for some network configurations."
ERROR_VHOST_VSOCK="To use AF_VSOCK sockets for communication"
ERROR_VHOST_VSOCK+=" between host and guest, you will need to enable"
ERROR_VHOST_VSOCK+=" the vhost virtio-vsock driver in your kernel."
if use amd64 || use amd64-linux; then
if grep -q AuthenticAMD /proc/cpuinfo; then
CONFIG_CHECK+=" ~KVM_AMD"
elif grep -q GenuineIntel /proc/cpuinfo; then
CONFIG_CHECK+=" ~KVM_INTEL"
fi
fi
# Now do the actual checks setup above
check_extra_config
fi
fi
}
src_compile() { :; }
src_install() {
if use amd64; then
my_arch=x86_64
elif use arm64; then
my_arch=aarch64
fi
newbin "release-v${PV}/firecracker-v${PV}-${my_arch}" firecracker
newbin "release-v${PV}/jailer-v${PV}-${my_arch}" jailer
}
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