ARG RUST_BUILDER_IMAGE=shtripok/rust-musl-builder:arm

FROM $RUST_BUILDER_IMAGE as rust

#ARG RUSTRELEASEDIR="debug"
ARG RUSTRELEASEDIR="release"

# Cache deps
WORKDIR /app
RUN sudo chown -R rust:rust .
RUN USER=root cargo new server
WORKDIR /app/server
COPY Cargo.toml Cargo.lock ./
COPY lemmy_db ./lemmy_db
COPY lemmy_utils ./lemmy_utils
COPY lemmy_structs ./lemmy_structs
COPY lemmy_rate_limit ./lemmy_rate_limit
COPY lemmy_api ./lemmy_api
COPY lemmy_apub ./lemmy_apub
COPY lemmy_websocket ./lemmy_websocket
RUN mkdir -p ./src/bin \
   && echo 'fn main() { println!("Dummy") }' > ./src/bin/main.rs
RUN cargo build --release
RUN find target/$CARGO_BUILD_TARGET/$RUSTRELEASEDIR -type f -name "$(echo "lemmy_server" | tr '-' '_')*" -exec touch -t 200001010000 {} +
COPY src ./src/
COPY migrations ./migrations/

# build for release
# workaround for https://github.com/rust-lang/rust/issues/62896
RUN cargo build --frozen --release

# reduce binary size
RUN strip ./target/$CARGO_BUILD_TARGET/$RUSTRELEASEDIR/lemmy_server

RUN cp ./target/$CARGO_BUILD_TARGET/$RUSTRELEASEDIR/lemmy_server /app/server/

FROM $RUST_BUILDER_IMAGE as docs
WORKDIR /app
COPY --chown=rust:rust docs ./docs
RUN mdbook build docs/

FROM alpine:3.12 as lemmy

# Install libpq for postgres
RUN apk add libpq

# Install Espeak for captchas
RUN apk add espeak

RUN addgroup -g 1000 lemmy
RUN adduser -D -s /bin/sh -u 1000 -G lemmy lemmy

# Copy resources
COPY --chown=lemmy:lemmy config/defaults.hjson /config/defaults.hjson
COPY --chown=lemmy:lemmy --from=rust /app/server/lemmy_server /app/lemmy
COPY --chown=lemmy:lemmy --from=docs /app/docs/book/ /app/documentation/

RUN chown lemmy:lemmy /app/lemmy
USER lemmy
EXPOSE 8536
CMD ["/app/lemmy"]