Dockerfile

ARG RUST_VERSION=1.80.1
FROM --platform=$BUILDPLATFORM rust:${RUST_VERSION}-alpine3.20 AS tools-host
ARG BUILDPLATFORM
ARG TARGETARCH

ENV TARGETS="x86_64-unknown-linux-musl aarch64-unknown-linux-musl x86_64-unknown-linux-gnu aarch64-unknown-linux-gnu riscv64gc-unknown-linux-gnu"
RUN rustup target add ${TARGETS}
RUN apk add musl-dev linux-headers make clang mold

FROM tools-host AS target-amd64
ENV CARGO_BUILD_TARGET="x86_64-unknown-linux-musl"

FROM tools-host AS target-arm64
ENV CARGO_BUILD_TARGET="aarch64-unknown-linux-musl"

FROM tools-host AS target-riscv64
ENV CARGO_BUILD_TARGET="riscv64gc-unknown-linux-gnu"

FROM target-$TARGETARCH AS tools
RUN echo "Cargo target: $CARGO_BUILD_TARGET"

ADD config.toml /usr/local/cargo/
# CARGO_BUILD_TARGET is respected by cargo install and other cargo commands
RUN cargo install --root /cargo-cross cargo-chef@0.1.67 cargo-sbom@0.9.1


FROM rust:${RUST_VERSION}-alpine3.20 AS tools-target-base
ENV TARGETS="x86_64-unknown-linux-musl aarch64-unknown-linux-musl x86_64-unknown-linux-gnu aarch64-unknown-linux-gnu riscv64gc-unknown-linux-gnu"
RUN rustup target add ${TARGETS}

# needed for cargo-chef and cargo-sbom, as well as many other compilations
RUN apk add musl-dev linux-headers make clang mold python3

# copy the cargo plugins from the tools stage
COPY --from=tools /cargo-cross /usr/local/cargo
# we define target specific rustc flags for cross-compilation
ADD config.toml /usr/local/cargo/

FROM tools-target-base AS tools-target-amd64
ENV CARGO_BUILD_TARGET="x86_64-unknown-linux-musl"

FROM tools-target-base AS tools-target-arm64
ENV CARGO_BUILD_TARGET="aarch64-unknown-linux-musl"

FROM tools-target-base AS tools-target-riscv64
ENV CARGO_BUILD_TARGET="riscv64gc-unknown-linux-gnu"

FROM tools-target-$TARGETARCH AS tools-target
RUN echo "Cargo target: $CARGO_BUILD_TARGET"