Dockerfile

FROM lukemathwalker/cargo-chef:latest-rust-latest AS chef
WORKDIR app

FROM chef AS planner
COPY . .
RUN cargo chef prepare --recipe-path recipe.json

FROM chef AS builder
COPY --from=planner /app/recipe.json recipe.json
# Build dependencies - this is the caching Docker layer!
RUN cargo chef cook --release --recipe-path recipe.json
# Build application
COPY . .
RUN cargo build --release

# We do not need the Rust toolchain to run the binary!
FROM debian:trixie-slim AS runtime
WORKDIR app
RUN apt-get update && apt-get install -y ca-certificates && rm -rf /var/lib/apt/lists/*
COPY --from=builder /app/target/release/github-matrix-project /usr/local/bin
CMD ["github-matrix-project"]