Dockerfile

# 1. Build Stage
FROM rust:1.95-slim-bookworm AS builder

WORKDIR /usr/src/app

# Install build dependencies
RUN apt-get update && apt-get install -y pkg-config libssl-dev

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

# Create dummy source to cache dependencies
RUN mkdir src && \
    echo "fn main() {}" > src/main.rs && \
    echo "pub mod lsb {} pub mod capacity {} pub mod chunking {} pub mod buffer_pool {} pub mod mbr {} pub mod db {} pub mod executor {} pub mod server {}" > src/lib.rs && \
    cargo build --release && \
    rm -rf src

# Copy real source code
COPY src ./src

# Build real application
# Touch main.rs to ensure Cargo detects it as changed
RUN touch src/main.rs && cargo build --release

# 2. Runtime Stage
FROM debian:bookworm-slim

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

WORKDIR /app

# Copy the compiled binary from the builder stage
COPY --from=builder /usr/src/app/target/release/subtext /usr/local/bin/subtext

# Create a default directory for the image database
RUN mkdir -p /app/images

# Expose the default HTTP port
EXPOSE 3000

# Set environment variables
ENV SUBTEXT_API_KEY=""
ENV RUST_LOG="info"

# Run the server command targeting the /app/images directory
CMD ["subtext", "serve", "/app/images", "--port", "3000"]