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Understanding Kubernetes

Introduction to Kubernetes and its Core Components

This article provides a basic introduction to Kubernetes, covering its key features and fundamental concepts. We'll explore what Kubernetes is, and the essential components of a Kubernetes cluster.

Understanding Kubernetes

Kubernetes is an open-source platform designed to automate deploying, scaling, and managing containerized applications.

Do You Know

Kubernetes is often called "k8s" for short.

kubectl get pods

Understanding Pods, Nodes, and Clusters is crucial for using Kubernetes effectively.

  • Pods: The smallest and simplest units in the Kubernetes object model that you create or deploy. A pod represents a running process.
  • Nodes: A node is a worker machine in your cluster. It could be a VM or a physical machine.
  • Clusters: A cluster is a set of worker machines, or nodes, that run containerized applications.

Important Note

Each pod runs in its own container.

apiVersion: v1

kind: Pod

metadata:

   name: my-app

spec:

   containers:

   - name: my-app-container

       image: my-app-image

Avoid This

Don't try to directly manage containers on nodes - let Kubernetes handle it for you!

  • Kubernetes automates containerized application management.
  • Key concepts include Pods, Nodes, and Clusters.
  • Use kubectl for interacting with the Kubernetes API.

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