Contoso has a number of multi-tier applications that are not suitable to run by using Azure Container Instances. In order to determine whether they can be run as containerized workloads, you want to evaluate using Kubernetes as the container orchestrator. To further minimize management overhead, you want to test Azure Kubernetes Service, including its simplified deployment experience and scaling capabilities.
>**Note**: If this is the first time you are starting **Cloud Shell** and you are presented with the **You have no storage mounted** message, select the subscription you are using in this lab, and click **Create storage**.
1. In the Azure portal, search for locate **Kubernetes services** and then, on the **Kubernetes services** blade, click **+ Add**, and then click **+ Add Kubernetes cluster**.
1. Click **Next: Node Pools >** and, on the **Node Pools** tab of the **Create Kubernetes cluster** blade, specify the following settings (leave others with their default values):
1. Click **Next: Authentication >** and, on the **Authentication** tab of the **Create Kubernetes cluster** blade, specify the following settings (leave others with their default values):
1. Click **Next: Networking >** and, on the **Networking** tab of the **Create Kubernetes cluster** blade, specify the following settings (leave others with their default values):
1. Click **Next: Integration >**, on the **Integration** tab of the **Create Kubernetes cluster** blade, set **Container monitoring** to **Disabled**, click **Review + create**, ensure that the validation passed and click Create.
1. In the **Cloud Shell** pane, review the output and verify that the one node which the cluster consists of at this point is reporting the **Ready** status.
1. Re-run the command until the value in the **EXTERNAL-IP** column for the **nginx-deployment** entry changes from **\<pending\>** to a public IP address. Note the public IP address in the **EXTERNAL-IP** column for **nginx-deployment**.
1. Open a browser window and navigate to the IP address you obtained in the previous step. Verify that the browser page displays the **Welcome to nginx!** message.
1. From the **Cloud Shell** pane, run the following to verify the outcome of scaling the deployment:
```sh
kubectl get pods
```
> **Note**: Review the output of the command and verify that the number of pods increased to 2.
1. From the **Cloud Shell** pane, run the following to scale out the cluster by increasing the number of nodes to 2:
```sh
az aks scale --resource-group $RESOURCE_GROUP --name $AKS_CLUSTER --node-count 2
```
> **Note**: Wait for the provisioning of the additional node to complete. This might take about 3 minutes. If it fails, rerun the `az aks scale` command.
1. From the **Cloud Shell** pane, run the following to verify the outcome of scaling the cluster:
```sh
kubectl get nodes
```
> **Note**: Review the output of the command and verify that the number of nodes increased to 2.
1. From the **Cloud Shell** pane, run the following to scale the deployment:
>**Note**: Remember to remove any newly created Azure resources that you no longer use. Removing unused resources ensures you will not see unexpected charges.
1. In the Azure portal, open the **Bash** shell session within the **Cloud Shell** pane.
1. List all resource groups created throughout the labs of this module by running the following command:
```sh
az group list --query "[?starts_with(name,'az104-09c')].name" --output tsv
```
1. Delete all resource groups you created throughout the labs of this module by running the following command:
```sh
az group list --query "[?starts_with(name,'az104-09c')].[name]" --output tsv | xargs -L1 bash -c 'az group delete --name $0 --no-wait --yes'
>**Note**: The command executes asynchronously (as determined by the --nowait parameter), so while you will be able to run another Azure CLI command immediately afterwards within the same Bash session, it will take a few minutes before the resource groups are actually removed.
