Defining Pods through Declarative Syntax

Pods as wrappers for containers

Even though a Pod can contain any number of containers, the most common use case is to use the single-container-in-a-Pod model. In such a case, a Pod is a wrapper around one container. From Kubernetes’ perspective, a Pod is the smallest unit. We cannot tell Kubernetes to run a container. Instead, we ask it to create a Pod that wraps around a container.

Looking into a Pod’s definition

Let’s look at a simple Pod db.yml definition: