Docker

Docker is a container platform that packages applications and dependencies into portable images, making development, shipping, and runtime behavior consistent across environments.

What is Docker?

Docker popularized containerized application delivery by creating a simple image format, developer-friendly CLI, and runtime model that can run on local machines or cloud infrastructure. It remains foundational in modern development workflows, continuous integration, and microservices architecture. The platform’s real challenge is operational: teams still need secure image practices, registry governance, runtime orchestration, and production hardening.

Key Features

• *Container images** — Build, share, and run portable application packages
• *Docker Desktop** — Local development environment for Mac, Windows, and Linux
• *Docker Hub** — Public and private container registry
• *Compose** — Multi-container application definitions for local development
• *Engine and runtime** — Run containers consistently across environments
• *Security** — Image scanning, secrets management, and trusted content controls

Who is it for?

• Development teams modernizing build and deployment workflows
• DevOps and platform engineering teams standardizing runtime environments
• Organizations adopting microservices or cloud-native architecture

Who is it NOT for?

• Teams without container security and registry governance plans
• Organizations seeking fully managed container platforms without operational investment
• Buyers avoiding ecosystem lock-in without a neutral image standard