# Docker Web

> Docker containerization for web apps, multi-stage builds, and optimization.

- Skill: `majiayu000/docker-web` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds add majiayu000/docker-web`
- Raw SKILL.md: https://api.skillmd.com/api/skills/majiayu000/docker-web/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: DevOps & Infra
- Author: majiayu000 (https://skillmd.com/u/majiayu000)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/majiayu000/docker-web

---


# Docker Web Skill

Expert assistance for containerizing web applications.

## Capabilities

- Create multi-stage Dockerfiles
- Optimize image size
- Configure for production
- Handle Node.js apps
- Set up docker-compose

## Dockerfile

```dockerfile
# Build stage
FROM node:20-alpine AS builder
WORKDIR /app
COPY package*.json ./
RUN npm ci
COPY . .
RUN npm run build

# Production stage
FROM node:20-alpine AS runner
WORKDIR /app
ENV NODE_ENV=production
COPY --from=builder /app/package*.json ./
COPY --from=builder /app/node_modules ./node_modules
COPY --from=builder /app/.next ./.next
COPY --from=builder /app/public ./public
EXPOSE 3000
CMD ["npm", "start"]
```

## Target Processes

- containerization
- production-deployment
- ci-cd-setup