feature(oci-distribution): distribute guestinit via OCI (#240)

Signed-off-by: Ariadne Conill <[email protected]>

.github/workflows/oci-distribution.yml

@@ -17,6 +17,7 @@ jobs:
         - kratactl
         - kratad
         - kratanet
+        - krata-guest-init
     name: oci build ${{ matrix.component }}
     steps:
     - uses: step-security/harden-runner@17d0e2bd7d51742c71671bd19fa12bdc9d40a3d6 # v2.8.1

images/Dockerfile.krata-guest-init

@@ -0,0 +1,10 @@
+FROM rust:1.79-alpine AS build
+RUN apk update && apk add protoc protobuf-dev build-base && rm -rf /var/cache/apk/*
+ENV TARGET_LIBC=musl TARGET_VENDOR=unknown
+
+WORKDIR /usr/src/app
+COPY . .
+RUN ./hack/initrd/build.sh && cp target/initrd/initrd-* target/initrd/initrd
+
+FROM scratch AS final
+COPY --from=build /usr/src/app/target/initrd/initrd /krata/initrd