Rocket Dockerfile

Dockerfile

FROM rustlang/rust:nightly
MAINTAINER "cbzehner@gmail.com"

ENV BUILD_DIR=/usr/src/<app_name>
RUN mkdir -p $BUILD_DIR
WORKDIR $BUILD_DIR

# TODO: Confirm this is actually needed to run `diesel setup`
# RUN cargo install diesel_cli --no-default-features --features postgres

# Cache the cargo build process using the Docker cache
# For details see "Fixing the docker cache utilization" (https://blog.sedrik.se/posts/my-docker-setup-for-rust/)
COPY Cargo.toml Cargo.lock rust-toolchain ./
RUN mkdir src && echo "fn main() {}" > src/main.rs
RUN cargo test
RUN cargo build

COPY . .
RUN echo "Current directory: `pwd`" \
    && echo "Directory contents: " && ls \
    && echo "Add files to .dockerignore to exclude them"


# Touch the real main.rs file or else Docker will use the cached one
RUN touch src/main.rs

RUN cargo build
EXPOSE 8000
ENTRYPOINT ["./target/debug/<app_name>"]