Cloud-Native Microservices With Kubernetes - 2nd Edition

The Building Analogy

Imagine a large office building filled with rooms. In each room, there are several computers, and inside each one, an operating system is running. Each operating system runs multiple processes.

In Kubernetes terms, the building is the cluster, each room is a namespace, every computer is a Pod, and the processes running inside the operating system are containers.

Processes running on localhost share the same network, IP address, and even storage. In the same way, containers running inside a Pod share every resource the Pod has.