FROM rust:1.83-bookworm as builder
WORKDIR /app
# Copy manifests first for better layer caching
COPY Cargo.toml Cargo.lock ./
# Create a dummy src to cache dependencies
RUN mkdir src && echo "fn main() {}" > src/main.rs
RUN cargo build --release
RUN rm -rf src
# Copy actual source code
COPY src ./src
# Build the real application
RUN touch src/main.rs && cargo build --release
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/{{PROJECT_NAME}} /app/{{PROJECT_NAME}}
ENV APP_HOST=0.0.0.0
ENV APP_PORT={{APP_PORT}}
EXPOSE {{APP_PORT}}
CMD ["./{{PROJECT_NAME}}"]