# Build stage
FROM rust:1.80-slim AS builder
WORKDIR /app
COPY Cargo.toml Cargo.lock ./
RUN mkdir src && echo "fn main() {}" > src/main.rs
RUN cargo build --release
COPY src ./src
RUN cargo build --release

# Production stage
FROM debian:bookworm-slim
RUN apt-get update && apt-get install -y ca-certificates && rm -rf /var/lib/apt/lists/*
WORKDIR /app
COPY --from=builder /app/target/release/hello-web /app/hello-web
EXPOSE 3000
CMD ["/app/hello-web"]