Dockerfile

################
##### Builder
FROM rust:slim-bullseye AS builder

ENV PROJECT /usr/src/rumgap

WORKDIR /usr/src

# Create blank project
RUN USER=root cargo new rumgap && cargo new rumgap/entity --lib && cargo new rumgap/migration --lib

# We want dependencies cached, so copy those first.
COPY Cargo.toml Cargo.lock build.rs icon.ico ${PROJECT}/
COPY entity/Cargo.toml ${PROJECT}/entity/
COPY migration/Cargo.toml ${PROJECT}/migration/
COPY proto ${PROJECT}/proto/
COPY entity/src ${PROJECT}/entity/src/
COPY migration/src ${PROJECT}/migration/src/

# Set the working directory
WORKDIR ${PROJECT}/

# Install build dependencies
RUN apt-get update && apt-get install -y pkg-config libssl-dev openssl protobuf-compiler && apt-get clean

# This is a dummy build to get the dependencies cached.
RUN cargo build --release

# Now copy in the rest of the sources
COPY src ${PROJECT}/src/

## Touch main.rs to prevent cached release build
RUN touch ${PROJECT}/src/main.rs

# This is the actual application build.
RUN cargo build --release

################
##### Runtime
FROM debian:bullseye AS runtime

# Copy application binary from builder image
COPY --from=builder /usr/src/rumgap/target/release/rumgap /usr/local/bin
COPY log4rs.yml /usr/local/bin
COPY configs /usr/local/bin/configs

RUN apt-get update && apt-get install -y ca-certificates openssl libssl-dev && apt-get clean

ENV HOST 0.0.0.0
ENV PORT 80
ENV DATABASE_URL "postgres://postgres:postgres@postgres/postgres"
ENV MANGA_UPDATE_INTERVAL_MS 600000

EXPOSE $PORT

# Run the application
CMD ["/usr/local/bin/rumgap"]