docker
Docker
Docker standardizes software delivery by packaging apps into containers. In 2025, Docker emphasizes BuildKit for high-performance builds and Docker Scout for supply chain security.
When to Use
- Local Development: Replicate production environments locally (
docker compose). - CI/CD: Standard unit of deployment for 99% of modern pipelines.
- Legacy Migration: Wrap old apps in containers to extend their life.
Quick Start (BuildKit)
# syntax=docker/dockerfile:1
FROM node:22-alpine AS base
WORKDIR /app
COPY package*.json ./
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