Dockerfile

# NB: This is not a production-grade Dockerfile.

#################
## build stage ##
#################
FROM rust:alpine AS builder
WORKDIR /code

RUN apk add --no-cache gcc g++ musl-dev

# Download crates-io index and fetch dependency code.
# This step avoids needing to spend time on every build downloading the index
# which can take a long time within the docker context. Docker will cache it.
RUN USER=root cargo init

COPY Cargo.toml Cargo.toml

RUN cargo fetch

# copy app files
COPY src src

# compile app
RUN cargo build --release

###############
## run stage ##
###############
# FROM debian:buster-slim
FROM alpine:latest
WORKDIR /app

# copy server binary from build stage
COPY --from=builder /code/target/release/project-management project-management

# set user to non-root unless root is required for your app
USER 1000

# indicate what port the server is running on
EXPOSE 8080

# run server
CMD [ "/app/project-management" ]