docker-patterns

Install

npx skills add langchain-ai/skills-benchmarks --skill docker-patterns

Overview

Best practices for Docker containerization and multi-stage builds

Documentation

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

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

Compose Patterns

Install

npx skills add langchain-ai/skills-benchmarks --skill docker-patterns

Overview

Documentation

docker-patterns | SkillBundle

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

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