langchain-ai/docker-patterns
skills/noise/docker_patterns/SKILL.md
Best practices for Docker containerization and multi-stage builds
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Last scanned: Apr 24, 2026, 8:52 PM1.8s1 file scanned
SKILL.md
- name:
- docker-patterns
- description:
- Best practices for Docker containerization and multi-stage builds
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
USERdirective - Use specific version tags, not
latest - Scan images with
docker scoutor Trivy - Use
.dockerignoreto 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
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