Dockerfile

# Build stage
FROM rust:1.88-slim AS builder

WORKDIR /app

# Install build dependencies
RUN apt-get update && apt-get install -y \
    pkg-config \
    libssl-dev \
    && rm -rf /var/lib/apt/lists/*

# Copy manifests
COPY Cargo.toml Cargo.lock ./

# Create dummy src to cache dependencies
RUN mkdir src && echo "fn main() {}" > src/main.rs

# Build dependencies only (cached layer)
RUN cargo build --release && rm -rf src

# Copy actual source code
COPY src ./src
COPY migrations ./migrations

# Build the application
RUN touch src/main.rs && cargo build --release

# Runtime stage
FROM debian:bookworm-slim

WORKDIR /app

# Install runtime dependencies
RUN apt-get update && apt-get install -y \
    ca-certificates \
    libssl3 \
    && rm -rf /var/lib/apt/lists/*

# Copy binary from builder
COPY --from=builder /app/target/release/cms-api /app/cms-api

# Copy migrations
COPY --from=builder /app/migrations /app/migrations

# Create non-root user
RUN useradd -r -s /bin/false appuser && chown -R appuser:appuser /app
USER appuser

EXPOSE 3000

CMD ["./cms-api"]