A Pod is the smallest unit you can create and manage in Kubernetes. It represents a single instance of a running process in your cluster and acts as a wrapper for one or more containers.
How it works:
• It groups containers together on the same host (Node).
• All containers inside a Pod share the same IP address and port space.
• They can communicate with each other using
localhost.• They share the same storage volumes and network namespace.
Problem it solves:
Managing tightly coupled containers separately is difficult. A Pod ensures that related containers are always scheduled, started, and stopped together as a single atomic unit, handling the networking between them automatically.
Use Case:
A main application container runs alongside a helper container that pulls updated configuration files. Because they are in the same Pod, they share a volume where the helper saves files and the app reads them instantly.
