Templates Docker

Dockerfile Node.js Optimisé

FROM node:20-alpine AS builder
WORKDIR /app
COPY package*.json ./
RUN npm ci --only=production

FROM node:20-alpine
WORKDIR /app
COPY --from=builder /app/node_modules ./node_modules
COPY . .
USER node
EXPOSE 3000
CMD ["node", "server.js"]

Dockerfile Python

FROM python:3.12-slim AS builder
WORKDIR /app
COPY requirements.txt .
RUN pip install --user -r requirements.txt

FROM python:3.12-slim
WORKDIR /app
COPY --from=builder /root/.local /root/.local
COPY . .
ENV PATH=/root/.local/bin:$PATH
CMD ["python", "app.py"]

Docker Compose Dev

services:
  app:
    build: .
    volumes:
      - .:/app
      - /app/node_modules
    ports:
      - "3000:3000"
    environment:
      - NODE_ENV=development

Best Practices

• Multi-stage builds pour images légères
• .dockerignore pour exclure node_modules, .git
• USER non-root en production
• HEALTHCHECK pour orchestration