Pods, Deployments & Services

Summary

A Pod is the smallest deployable unit (one or more containers); a Deployment manages a set of replica Pods and handles rolling updates; a Service provides stable networking to reach Pods that come and go.

• 1Deploy a simple application as a Pod, then convert it into a Deployment.
• 2Expose the Deployment with a Service and access it from within the cluster.
• 3Learn why you almost never create bare Pods directly in a real workflow — Deployments manage them for you.