Dockerfile

# ── Stage 1: Build ──────────────────────────────────────────────────────────
FROM rust:1.83-bookworm AS builder
WORKDIR /app

# Cache dependencies by copying Cargo manifests first
COPY Cargo.toml Cargo.lock ./
COPY crates/stateset-adgrid-core/Cargo.toml crates/stateset-adgrid-core/Cargo.toml
COPY crates/stateset-adgrid-qr/Cargo.toml crates/stateset-adgrid-qr/Cargo.toml
COPY crates/stateset-adgrid-auction/Cargo.toml crates/stateset-adgrid-auction/Cargo.toml
COPY crates/stateset-adgrid-settlement/Cargo.toml crates/stateset-adgrid-settlement/Cargo.toml
COPY crates/stateset-adgrid-analytics/Cargo.toml crates/stateset-adgrid-analytics/Cargo.toml
COPY crates/stateset-adgrid-db/Cargo.toml crates/stateset-adgrid-db/Cargo.toml
COPY crates/stateset-adgrid-api/Cargo.toml crates/stateset-adgrid-api/Cargo.toml
COPY crates/stateset-adgrid-agent/Cargo.toml crates/stateset-adgrid-agent/Cargo.toml

# Create stub source files for dependency caching
RUN for crate in core qr auction settlement analytics db agent; do \
      mkdir -p crates/stateset-adgrid-$crate/src && \
      echo "pub fn _stub() {}" > crates/stateset-adgrid-$crate/src/lib.rs; \
    done && \
    mkdir -p crates/stateset-adgrid-api/src/bin && \
    echo "pub fn _stub() {}" > crates/stateset-adgrid-api/src/lib.rs && \
    echo "fn main() {}" > crates/stateset-adgrid-api/src/bin/adgrid-server.rs

RUN cargo build --release --workspace 2>/dev/null || true

# Copy real source and rebuild (only changed layers recompile)
COPY crates crates
RUN touch crates/*/src/lib.rs crates/stateset-adgrid-api/src/bin/adgrid-server.rs && \
    cargo build --release --bin adgrid-server

# ── Stage 2: Runtime ────────────────────────────────────────────────────────
FROM debian:bookworm-slim
RUN apt-get update && \
    apt-get install -y --no-install-recommends ca-certificates && \
    rm -rf /var/lib/apt/lists/*

COPY --from=builder /app/target/release/adgrid-server /usr/local/bin/adgrid-server

ENV ADGRID_BIND=0.0.0.0:8080
EXPOSE 8080

ENTRYPOINT ["adgrid-server"]