docker

Critical Patterns

Multi-Stage Builds (REQUIRED)

# ✅ ALWAYS: Use multi-stage to reduce final image size
FROM node:18-alpine AS builder
WORKDIR /app
COPY package*.json ./
RUN npm ci --only=production

FROM node:18-alpine
WORKDIR /app
COPY --from=builder /app/node_modules ./node_modules
COPY . .
CMD ["node", "server.js"]

Non-Root User (REQUIRED)