Kubernetes objects

The storage and compute resources of the system are classified into different objects that reflect the current state of the cluster. Objects are defined using a .yaml spec and the Kubernetes API is used to create and manage the objects. We are going to cover some common Kubernetes objects in detail.

Pods

A pod is a basic building block of a Kubernetes cluster. It's a group of one or more containers that are expected to co-exist on a single host. Containers within a pod can reference each other using localhost or inter-process communications (IPCs).

Deployments

Kubernetes deployments help scale pods up or down based on labels and selectors. The YAML spec for a deployment consists of replicas, which is the number of instances of pods that are required, and template, which is identical to a pod specification.

Services

A Kubernetes service is an abstraction of an application. A service enables network access for pods. Services and deployments work...