Installing Kubernetes on Azure AKS

Tutorial 4 of 5

1. Introduction

This tutorial will guide you through the process of setting up Kubernetes on Azure using the Azure Kubernetes Service (AKS). By the end of this tutorial, you will have a clear understanding of how to create and manage a Kubernetes cluster on Azure.

What you will learn:

  • How to install the Azure CLI
  • How to create a Kubernetes cluster using AKS
  • How to connect to the cluster
  • How to deploy applications on the cluster

Prerequisites:

  • Basic knowledge of Kubernetes
  • An Azure account

2. Step-by-Step Guide

Install Azure CLI

First, you need to install the Azure CLI. It's a command-line tool that allows you to manage Azure services.

  1. Install the Azure CLI using this command:
curl -sL https://aka.ms/InstallAzureCLIDeb | sudo bash
  1. Verify the installation with:
az --version

Create a Kubernetes Cluster with AKS

  1. Log in to your Azure account:
az login
  1. Create a resource group:
az group create --name MyResourceGroup --location eastus
  1. Create a Kubernetes cluster:
az aks create --resource-group MyResourceGroup --name MyAKSCluster --node-count 3 --enable-addons monitoring --generate-ssh-keys

Connect to the Cluster

To manage a Kubernetes cluster, you use kubectl, the Kubernetes command-line client. If you need to install it, use the following command:

az aks install-cli

Deploy Applications

  1. To connect to the cluster, run:
az aks get-credentials --resource-group MyResourceGroup --name MyAKSCluster
  1. Verify the connection to your cluster:
kubectl get nodes
  1. Deploy an application. Here we're deploying a simple nginx web server:
kubectl apply -f https://k8s.io/examples/application/deployment.yaml
  1. Check that the application is running:
kubectl get services

3. Code Examples

Sorry, but it's impossible to provide code examples for this tutorial as it's all command-line based. The commands provided in the step-by-step guide section are all you need to follow.

4. Summary

This tutorial covered how to create a Kubernetes cluster in Azure using AKS, how to connect to the cluster, and how to deploy applications. You can now create and manage your own Kubernetes clusters in Azure!

5. Practice Exercises

  1. Create a new cluster with 5 nodes.
  2. Deploy a different application to the cluster.
  3. Delete the cluster you created.

Solutions:

  1. Use the same command as before, but change the --node-count value to 5.
  2. Find a different application and use kubectl apply -f with the URL of the application's YAML file.
  3. Use az aks delete --name MyAKSCluster --resource-group MyResourceGroup.

Remember, practice makes perfect. Keep experimenting with different configurations and applications.