dockerlisted

# /docker - Dockerfile Generator Generate optimized Dockerfiles with best practices. ## Usage ``` /docker # Auto-detect and generate /docker python # Python application /docker rust # Rust application (multi-stage) /docker --slim # Minimal image size ``` ## What This Skill Does 1. **Detect Application Type** - Language, framework, dependencies 2. **Generate Dockerfile** - Optimized for size and build speed 3. **Add .dockerignore** - Exclude unnecessary files 4. **Multi-stage Builds** - Separate build and runtime stages 5. **Security Hardening** - Non-root user, minimal base image ## Templates ### Python Application ```dockerfile # Build stage FROM python:3.11-slim as builder WORKDIR /app RUN pip install --no-cache-dir build COPY pyproject.toml . COPY src/ src/ RUN python -m build --wheel # Runtime stage FROM python:3.11-slim WORKDIR /app RUN useradd --create-home --shell /bin/bash app COPY --from=builder /app/dist/*.whl . RUN pip install --no-cache-dir *.whl && rm *.whl USER app ENTRYPOINT ["python", "-m", "myapp"] ``` ### Rust Application ```dockerfile # Build stage FROM rust:1.75-slim as builder WORKDIR /app COPY Cargo.toml Cargo.lock ./ COPY src/ src/ RUN cargo build --release # Runtime stage FROM debian:bookworm-slim RUN useradd --create-home --shell /bin/bash app COPY --from=builder /app/target/release/myapp /usr/local/bin/ USER app ENTRYPOINT ["myapp"] ``` ### .dockerignore ``` .git/ .gitignore .venv/ __p