name: docker-web description: Docker containerization for web apps, multi-stage builds, and optimization. allowed-tools: Read, Write, Edit, Bash, Glob, Grep

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

# 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