mcpbeat

Docker Patterns

langchain-ai/docker-patterns

Best practices for Docker containerization and multi-stage builds

288 tokens
context cost
the whole folder, loaded on every use
1
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instructions only
0
copies elsewhere
how many repositories repackaged it
111
stars on the repo
on the repository, not the skill itself

Install

one command, takes just this skill from the repository 
npx skills add https://github.com/langchain-ai/skills-benchmarks --skill docker-patterns

The instruction itself

5 sections, as written by the author

Docker Containerization Patterns

Build efficient, secure Docker images using modern patterns.

Multi-Stage Builds

Always use multi-stage builds to minimize image size:

# Build stage
FROM node:20-alpine AS builder
WORKDIR /app
COPY package*.json ./
RUN npm ci --only=production

# Production stage
FROM node:20-alpine
WORKDIR /app
COPY --from=builder /app/node_modules ./node_modules
COPY . .
USER node
CMD ["node", "server.js"]

Security Best Practices

  • Never run as root - use USER directive
  • Use specific version tags, not latest
  • Scan images with docker scout or Trivy
  • Use .dockerignore to exclude sensitive files

Health Checks

HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
  CMD curl -f http://localhost:3000/health || exit 1

Compose Patterns

services:
  app:
    build:
      context: .
      target: production
    environment:
      - NODE_ENV=production
    deploy:
      resources:
        limits:
          memory: 512M

How to use it

Copy the folder

Take langchain-ai/docker-patterns from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.