# shadow-rs development image — Alpine 3.23 (musl libc)
#
# PAM: linux-pam-dev (Linux-PAM, not OpenPAM)
# SELinux: not available (Alpine doesn't ship SELinux)
# Default shell: /bin/ash (busybox)
# Shadow-utils package: shadow
# Note: musl libc — different from glibc. Tests NSS/getpwent differences.
#       No SELinux. Busybox shadow-utils may differ from GNU shadow-utils.

FROM rust:alpine

RUN apk add --no-cache \
    musl-dev \
    linux-pam-dev \
    linux-headers \
    pkgconf \
    shadow \
    bash \
    curl

RUN rustup component add clippy rustfmt \
    && curl -LsSf https://get.nexte.st/latest/linux-musl | tar zxf - -C /usr/local/cargo/bin

# cargo-deny: pinned, checksum-verified prebuilt binary. The static musl build
# runs on glibc too, so every image shares one asset. Installing the binary
# (instead of `cargo install cargo-deny`) skips a multi-minute source compile.
ARG CARGO_DENY_VERSION=0.19.8
ARG CARGO_DENY_SHA256=70e769ae3872e34d45132b17040859175e11401dc12dddb0303e0b8c7d088f3f
RUN curl -LsSf "https://github.com/EmbarkStudios/cargo-deny/releases/download/${CARGO_DENY_VERSION}/cargo-deny-${CARGO_DENY_VERSION}-x86_64-unknown-linux-musl.tar.gz" -o /tmp/cargo-deny.tar.gz \
    && echo "${CARGO_DENY_SHA256}  /tmp/cargo-deny.tar.gz" | sha256sum -c - \
    && tar zxf /tmp/cargo-deny.tar.gz -C /tmp \
    && install -m 0755 "/tmp/cargo-deny-${CARGO_DENY_VERSION}-x86_64-unknown-linux-musl/cargo-deny" /usr/local/cargo/bin/cargo-deny \
    && rm -rf /tmp/cargo-deny.tar.gz "/tmp/cargo-deny-${CARGO_DENY_VERSION}-x86_64-unknown-linux-musl" \
    && cargo-deny --version

RUN adduser -D -s /bin/bash testuser \
    && adduser -D -s /bin/sh testuser2 \
    && addgroup testgroup \
    && addgroup testuser testgroup

WORKDIR /workspace
CMD ["/bin/bash"]