Files
initrd/Dockerfile
2025-07-21 03:25:48 +02:00

46 lines
1.6 KiB
Docker

from rust:1.88.0-alpine as rust
run apk add --no-cache git musl-dev libudev-zero-dev openssl-dev cryptsetup-dev lvm2-dev clang-libs clang-dev
workdir /src
copy . .
run --mount=type=cache,id=novit-rs,target=/usr/local/cargo/registry \
--mount=type=cache,id=novit-rs-target,sharing=private,target=/src/target \
RUSTFLAGS="-C target-feature=-crt-static" cargo install --path . --root /dist
# ------------------------------------------------------------------------
from alpine:3.22.0 as initrd
run apk add zstd lz4
workdir /system
run . /etc/os-release \
&& wget -O- https://dl-cdn.alpinelinux.org/alpine/v${VERSION_ID%.*}/releases/x86_64/alpine-minirootfs-${VERSION_ID}-x86_64.tar.gz |tar zxv
run apk add --no-cache --update -p . musl libgcc coreutils \
lvm2 lvm2-extra lvm2-dmeventd udev cryptsetup \
e2fsprogs lsblk openssl openssh-server wireguard-tools-wg-quick \
&& rm -rf usr/share/apk var/cache/apk etc/motd
copy etc/sshd_config etc/ssh/sshd_config
copy --from=rust /dist/bin/init /system/init
run mv dev /layer \
&& chroot . ldd /init |sed -e 's,.*>\s,,' -e 's,^\s*,,' -e 's,\s.*,,' -e 's,^/,,' |sort |uniq >/required_libs \
&& tar c init -T /required_libs | tar xv -C /layer |xargs rm -v \
&& find |cpio -H newc -o |zstd -19 >/layer/system.azstd
workdir /layer
run mkdir -p bin run var/log; cd bin && for cmd in init-version init-connect bootstrap; do ln -s ../init $cmd; done
# check viability
run ldd bin/init-version; chroot . init-version
run find * |cpio -H newc -oF /initrd
# ------------------------------------------------------------------------
from alpine:3.22.0
copy --from=initrd /initrd /
entrypoint ["base64","/initrd"]