FROM stagex/pallet-rust:sx2025.06.1 AS pallet-rust
FROM stagex/user-eif_build:sx2025.06.1 AS eif_build
FROM stagex/user-gen_initramfs:sx2025.06.1 AS gen_initramfs
FROM stagex/user-linux-nitro:sx2025.06.1 AS linux-nitro

FROM scratch as base
ENV TARGET=x86_64-unknown-linux-musl
ENV RUSTFLAGS="-C target-feature=+crt-static"
ENV CARGOFLAGS="--locked --no-default-features --release --target ${TARGET}"
ENV OPENSSL_STATIC=true

COPY --from=pallet-rust . /
COPY --from=gen_initramfs . /
COPY --from=eif_build . /
COPY --from=linux-nitro /bzImage .
COPY --from=linux-nitro /linux.config .
ADD . /src

FROM base as build
WORKDIR /src
RUN cargo build ${CARGOFLAGS}
WORKDIR /build_cpio
RUN cp /src/target/${TARGET}/release/nit init
ENV KBUILD_BUILD_TIMESTAMP=1
COPY <<-EOF initramfs.list
	file /init     init    0755 0 0
	dir  /run              0755 0 0
	dir  /tmp              0755 0 0
	dir  /etc              0755 0 0
	dir  /bin              0755 0 0
	dir  /sbin             0755 0 0
	dir  /proc             0755 0 0
	dir  /sys              0755 0 0
	dir  /usr              0755 0 0
	dir  /usr/bin          0755 0 0
	dir  /usr/sbin         0755 0 0
	dir  /dev              0755 0 0
	dir  /dev/shm          0755 0 0
	dir  /dev/pts          0755 0 0
	nod  /dev/console      0600 0 0 c 5 1
EOF
RUN <<-EOF
	find . -exec touch -hcd "@0" "{}" +
	gen_init_cpio -t 1 initramfs.list > rootfs.cpio
	touch -hcd "@0" rootfs.cpio
EOF
WORKDIR /build_eif
RUN eif_build \
	--kernel /bzImage \
	--kernel_config /linux.config \
	--ramdisk /build_cpio/rootfs.cpio \
	--pcrs_output /nitro.pcrs \
	--output /nitro.eif \
	--cmdline 'reboot=k initrd=0x2000000,3228672 root=/dev/ram0 panic=1 pci=off nomodules console=ttyS0 i8042.noaux i8042.nomux i8042.nopnp i8042.dumbkbd'

FROM base as install
WORKDIR /rootfs
COPY --from=build /nitro.eif .
COPY --from=build /nitro.pcrs .

FROM scratch as package
COPY --from=install /rootfs .