DevOps
devops
containers
deployment
What is Docker?
Definition
Docker is a platform that packages applications and their dependencies into lightweight, portable containers. A container runs consistently on any machine with Docker installed, eliminating 'it works on my machine' problems.
Why It Matters
Docker is the industry standard for containerization. It is used in development, CI/CD pipelines, microservices, and cloud deployments. Docker Compose manages multi-container applications. Kubernetes orchestrates Docker containers at scale.