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 ./