FROM docker.io/rust:1-slim-bookworm AS build

## cargo package name: customize here or provide via --build-arg
ARG pkg=backend
ARG DATABASE_URL

WORKDIR /build

COPY .cargo .cargo
COPY cdn cdn
COPY src src
COPY Cargo.toml Cargo.toml
COPY Rocket.toml Rocket.toml
COPY static static
COPY templates templates

RUN apt-get update && apt-get install -y libssl-dev pkg-config

RUN --mount=type=cache,target=/build/target \
    --mount=type=cache,target=/usr/local/cargo/registry \
    --mount=type=cache,target=/usr/local/cargo/git \
    set -eux; \
    cargo build --release; \
    objcopy --compress-debug-sections target/release/$pkg ./main

################################################################################

FROM docker.io/debian:bookworm-slim

RUN apt-get update && apt-get install -y libssl-dev pkg-config

WORKDIR /app

## copy the main binary
COPY --from=build /build/main ./

## copy runtime assets which may or may not exist
COPY --from=build /build/Rocket.toml ./Rocket.toml
COPY --from=build /build/static ./static
COPY --from=build /build/cdn ./cdn
COPY --from=build /build/template[s] ./templates

## ensure the container listens globally on port 8000
ENV ROCKET_ADDRESS=0.0.0.0
ENV ROCKET_PORT=8000

CMD ./main