# Super-fast Dockerfile using pre-compiled dependencies
# This requires building a base image first with: cargo chef cook

ARG SERVICE_NAME

# Stage 1: Use pre-built base with all dependencies cached
# Build base with: docker build -f Dockerfile.base -t nxtgauge-rust-base:latest .
FROM ghcr.io/traceworks2023/nxtgauge-rust-base:latest AS builder
ARG SERVICE_NAME

WORKDIR /app

# Copy ONLY the service source code (fast!)
COPY Cargo.toml Cargo.lock ./
COPY crates/ ./crates/
COPY apps/${SERVICE_NAME}/ ./apps/${SERVICE_NAME}/

# Build with optimizations for size and speed
ENV RUSTFLAGS="-C target-feature=+crt-static -C link-arg=-s -C opt-level=z"
ENV CARGO_NET_OFFLINE=true

# Build just this service - dependencies already compiled!
RUN cargo build --release \
    --bin ${SERVICE_NAME} \
    --target x86_64-unknown-linux-musl \
    2>&1 | tail -20

# Stage 2: Minimal runtime
FROM scratch
ARG SERVICE_NAME

COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
COPY --from=builder /app/target/x86_64-unknown-linux-musl/release/${SERVICE_NAME} /app/service

USER 65532:65532
EXPOSE 8000

ENTRYPOINT ["/app/service"]