Dockerfile-ex-app

# Image: tapis/event-engine-ex-app

FROM rust:1.61 as builder

# install libzmq
RUN USER=root apt-get update && apt-get install -y libzmq3-dev

# bas directory where everything will live
RUN mkdir /example

# add event-engine; 
ADD event-engine /event-engine

WORKDIR /example

RUN USER=root cargo new --bin rust-app

WORKDIR /example/rust-app

# copy manifests
COPY example/rust-app/Cargo.lock ./Cargo.lock
COPY example/rust-app/Cargo.toml ./Cargo.toml

# build and cache only the dependencies
# TODO -----
# RUN cargo build --release
RUN cargo build
# ----------
RUN rm src/*.rs

# copy source
COPY example/rust-app/src ./src

# build for release
# on the very first build, this doesn't exist 
# TODO --------
# RUN rm ./target/release/deps/rust_app*
RUN rm ./target/debug/deps/rust_app*
# -------------
RUN cargo build --release

# final base image
FROM debian:buster-slim

# still need to install zmq
RUN USER=root apt-get update && apt-get install -y libzmq3-dev

# copy the build artifact from the build stage
COPY --from=builder /example/rust-app/target/release/rust-app .
COPY example/rust-app/log4rs.yml ./log4rs.yml
# set the startup command to run your binary
CMD ["./rust-app"]