Containerization with Docker revolutionizes application deployment by packaging applications with their dependencies. Containers ensure consistency across development, testing, and production environments.
Docker images define application environments. Containers run from images, providing isolated, reproducible runtime environments. This isolation prevents conflicts between applications sharing the same host.
Orchestration tools like Kubernetes manage containers at scale. They handle deployment, scaling, and maintenance of containerized applications across clusters of machines, making complex deployments manageable.