FROM rust:1.85-slim-bookworm AS build

# create a new empty shell project
RUN USER=root cargo new --bin http_server
WORKDIR /http_server

# copy over your manifests
COPY ./Cargo.lock ./Cargo.lock
COPY ./Cargo.toml ./Cargo.toml

# this build step will cache your dependencies
RUN cargo build --release
RUN rm src/*.rs

# copy your source tree
COPY ./src ./src

# build for release as a static-pie linked binary
RUN rm ./target/release/deps/http_server*
ENV RUSTFLAGS='-C target-feature=+crt-static'
RUN cargo build --release --target x86_64-unknown-linux-gnu

FROM scratch

# copy the build artifact from the build stage
COPY --from=build /http_server/target/x86_64-unknown-linux-gnu/release/http_server /
COPY ./www /www

EXPOSE 8080

CMD ["/http_server"]