Kubernetes Basics: A Hands-On Introduction to Pods, Deployments, and Services

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What Is Kubernetes?

Kubernetes is an open-source platform that automates the operational tasks of container management. Developed by Google and now maintained by the Cloud Native Computing Foundation (CNCF), Kubernetes enables DevOps teams to:

• Deploy applications efficiently.
• Scale workloads automatically or manually.
• Manage updates with zero downtime.
• Ensure high availability.

Key Concepts to Master

1. Pods: The Smallest Deployable Unit

A Pod is the smallest, simplest unit in the Kubernetes ecosystem. Think of it as a wrapper for your containerized application. Each Pod can host one or more containers that share the same network and storage resources.

Key Features of Pods:

• Single IP Address: All containers in a Pod share the same IP.
• Shared Resources: Containers share volumes and networking.
• Ephemeral Nature: Pods are designed to be temporary; Kubernetes replaces them if they fail.