introduce rust

Dockerfile

@@ -1,39 +1,37 @@
-from golang:1.23.2-alpine3.20 as build
-run apk add --no-cache gcc musl-dev linux-headers eudev-dev upx
+from rust:1.87.0-alpine as rust
+
+run apk add --no-cache git musl-dev libudev-zero-dev # pkgconfig cryptsetup-dev lvm2-dev clang-dev clang-static
 
 workdir /src
-
 copy . .
-
-env CGO_ENABLED=1
-run \
-  --mount=type=cache,id=gomod,target=/go/pkg/mod \
-  --mount=type=cache,id=gobuild,target=/root/.cache/go-build \
-   go test ./... \
-&& go build -ldflags "-s -w" -o /go/bin/init -trimpath .
-
-run upx /go/bin/init
+run --mount=type=cache,id=novit-rs,target=/usr/local/cargo/registry \
+    --mount=type=cache,id=novit-rs-target,sharing=private,target=/src/target \
+    cargo build --release && cp target/release/init /
 
 # ------------------------------------------------------------------------
-from alpine:3.20.3 as initrd
-
-run apk add --no-cache xz
+from alpine:3.22.0 as initrd
 
 workdir /layer
+
 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 -p . musl lvm2 lvm2-extra lvm2-dmeventd udev cryptsetup e2fsprogs lsblk
-run rm -rf usr/share/apk var/cache/apk
+run apk add --no-cache --update -p . musl coreutils \
+ lvm2 lvm2-extra lvm2-dmeventd udev cryptsetup \
+ e2fsprogs lsblk openssh-server \
+ && rm -rf usr/share/apk var/cache/apk etc/motd
 
-copy --from=build /go/bin/init .
+copy etc/sshd_config etc/ssh/sshd_config
+
+copy --from=rust /init init
+run cd bin && for cmd in init-version connect-boot bootstrap; do ln -s ../init $cmd; done
 
 # check viability
-run chroot /layer /init hello
+run chroot . init-version
 
 run find |cpio -H newc -o >/initrd
 
 # ------------------------------------------------------------------------
-from alpine:3.20.3
+from alpine:3.22.0
 copy --from=initrd /initrd /
 entrypoint ["base64","/initrd"]