FROM rust:buster AS base ENV USER=root ENV ROCKET_ADDRESS=0.0.0.0 ENV ROCKET_ENV=development WORKDIR /code RUN cargo init COPY Cargo.toml /code/Cargo.toml RUN cargo fetch COPY . /code FROM base AS development EXPOSE 8000 CMD [ "cargo", "run", "--offline" ] FROM base AS builder RUN cargo build --release --offline FROM debian:buster-slim ENV ROCKET_ENV=production EXPOSE 8000 COPY --from=builder /code/target/release/react-rust-postgres /react-rust-postgres CMD [ "/react-rust-postgres" ]