#ARG DEBIAN_VERSION
#FROM debian:${DEBIAN_VERSION}-slim
FROM debian:bullseye-slim

ENV RUSTUP_HOME=/usr/local/rustup \
    CARGO_HOME=/usr/local/cargo \
    PATH=/usr/local/cargo/bin:$PATH

RUN set -eux; \
    apt-get update; \
    apt-get install -y --no-install-recommends \
        ca-certificates \
        gcc \
        libc6-dev \
        wget \
        ; \
    dpkgArch="$(dpkg --print-architecture)"; \
    case "${dpkgArch##*-}" in \
        amd64) rustArch='x86_64-unknown-linux-gnu' ;; \
        arm64) rustArch='aarch64-unknown-linux-gnu' ;; \
        *) echo >&2 "unsupported architecture: ${dpkgArch}"; exit 1 ;; \
    esac; \
    \
    url="https://static.rust-lang.org/rustup/dist/${rustArch}/rustup-init"; \
    wget "$url"; \
    chmod +x rustup-init; \
    ./rustup-init -y --no-modify-path --default-toolchain nightly; \
    rm rustup-init; \
    chmod -R a+w $RUSTUP_HOME $CARGO_HOME; \
    rustup --version; \
    cargo --version; \
    rustc --version; \
    \
    apt-get remove -y --auto-remove \
        wget \
        ; \
    rm -rf /var/lib/apt/lists/*;