K8s Pods - Photo upload server

Kubernetes (also known as k8s) is an open-source platform for managing containerized workloads and services. It provides a wide range of features that make it easy to deploy, scale, and manage applications in a cloud-native environment. One of the key components of Kubernetes is the Pod, which is the smallest and simplest unit in the Kubernetes object model.

In this post, we will dive deep into the Kubernetes Pod specification, exploring what it is, how it works, and how to configure it.

What is a Kubernetes Pod?

A Pod is the smallest deployable unit in Kubernetes. It represents a single instance of a running process in a cluster. A Pod can contain one or more containers, which share the same network namespace and can communicate with each other using localhost.

The main purpose of a Pod is to provide a way to run and manage a single container or a set of tightly coupled containers that share resources, such as CPU, memory, and storage. Pods are also designed to be ephemeral, meaning they can be created, destroyed, and replaced at any time without affecting the rest of the cluster.

Kubernetes Pod Specification

The Kubernetes Pod specification defines how a Pod should be configured and deployed in a cluster. It is defined using a YAML file or a JSON object, which includes various fields and parameters that control the Pod's behavior.