FROM rust

RUN useradd -m piper
WORKDIR /piper
RUN chown piper /piper
USER piper

ENV CARGO_REGISTRIES_CRATES_IO_PROTOCOL=sparse
COPY --chown=piper Cargo.toml Cargo.lock ./
RUN mkdir src && touch src/lib.rs && cargo b -r && rm src/lib.rs

COPY --chown=piper src/ src/
RUN cargo install --offline --path .

RUN mkdir -p ~/.config/piper-bot && ln -s /mnt/config.kdl ~/.config/piper-bot/config.kdl

CMD /usr/local/cargo/bin/piper-bot