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- Created structured documentation with /patterns/, /examples/, and /reference/ directories - Implemented automatic context loading rules in CLAUDE.md based on file extensions, directories, and keywords - Added technology-specific patterns for Docker, Python, Node.js, Vue.js, Bash, networking, databases, and VM management - Included complete working examples for common workflows and troubleshooting references - Designed for minimal context usage with precise loading triggers 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
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Multi-Stage Docker Builds
Basic Multi-Stage Pattern
# Build stage
FROM node:18-alpine AS builder
WORKDIR /app
COPY package*.json ./
RUN npm ci --only=production
# Production stage
FROM node:18-alpine AS production
WORKDIR /app
COPY --from=builder /app/node_modules ./node_modules
COPY . .
EXPOSE 3000
CMD ["npm", "start"]
Python with Virtual Environment
# Build stage
FROM python:3.11-slim AS builder
WORKDIR /app
COPY requirements.txt .
RUN python -m venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"
RUN pip install --no-cache-dir -r requirements.txt
# Production stage
FROM python:3.11-slim AS production
WORKDIR /app
COPY --from=builder /opt/venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"
COPY . .
CMD ["python", "app.py"]
Benefits
- Smaller final image size
- Separation of build and runtime dependencies
- Better caching strategies
- Security (no build tools in production image)
Best Practices
- Use specific base image versions
- Copy only necessary files to production stage
- Run as non-root user in production stage
- Use .dockerignore to exclude unnecessary files