Kubernetes (K8s) is an open-source system for automating deployment, scaling, and management of containerized applications.

In simple terms:

• You run applications in containers (like Docker)
• Kubernetes manages where and how those containers run
• It keeps your system healthy automatically

Kubernetes is a container orchestration system.

It handles:

• Starting containers
• Stopping unhealthy containers
• Scaling up/down
• Networking between containers
• Service discovery

Think of Kubernetes as a traffic controller:

• Containers = cars
• Nodes = roads
• Kubernetes = traffic system that ensures everything flows correctly

Without Kubernetes:

• You manage containers manually

With Kubernetes:

• The system manages itself based on your desired state