What exists in Kubernetes that is not in Docker? What is the minimal management unit?

Kubernetes is a container orchestration system that manages the deployment, scaling, and maintenance of containerized applications. Unlike Docker, which is responsible for creating and running individual containers, Kubernetes provides:

• Automatic application scaling
• Self-healing (restarting failed containers)
• Load balancing
• Management of configurations and secrets
• Declarative cluster state description

The smallest management unit in Kubernetes is a Pod. A Pod is one or more containers that run on a single host and share network and storage resources.