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@ -158,7 +158,7 @@ In this task, you will scale a virtual machine by adjusting its size to a differ
## Task 3: Implement Azure Virtual Machine Scale Sets ## Task 3: Implement Azure Virtual Machine Scale Sets
In this task, you will deploy an Azure virtual machine scale set across availability zones. With individual VMs, you would need other automation to deploy and configure additional VMs if your application needs additional compute. VM Scale Sets reduce the administrative overhead of automation by enabling you to configure metrics or conditions that allow the scale set to horizontally scale, scale in or scale out. In this task, you will deploy an Azure virtual machine scale set across availability zones. VM Scale Sets reduce the administrative overhead of automation by enabling you to configure metrics or conditions that allow the scale set to horizontally scale, scale in or scale out.
1. In the Azure portal, search for and select `Virtual machine scale sets` and, on the **Virtual machine scale sets** blade, click **+ Create**. 1. In the Azure portal, search for and select `Virtual machine scale sets` and, on the **Virtual machine scale sets** blade, click **+ Create**.
@ -193,13 +193,13 @@ In this task, you will deploy an Azure virtual machine scale set across availabi
| Setting | Value | | Setting | Value |
| --- | --- | | --- | --- |
| Name | `vmss-vnet` | | Name | `vmss-vnet` |
| Address range | `10.82.0.0/20` | | Address range | `10.82.0.0/20` (change what is there) |
| Subnet name | `subnet0` | | Subnet name | `subnet0` |
| Subnet range | `10.82.0.0/24` | | Subnet range | `10.82.0.0/24` |
1. In the **Networking** tab, click the **Edit network interface** icon to the right of the network interface entry. 1. In the **Networking** tab, click the **Edit network interface** icon to the right of the network interface entry.
1. On the **Edit network interface** blade, in the **NIC network security group** section, click **Advanced** and click **Create new** under the **Configure network security group** drop-down list. 1. For **NIC network security group** section, select **Advanced** and then click **Create new** under the **Configure network security group** drop-down list.
1. On the **Create network security group** blade, specify the following settings (leave others with their default values): 1. On the **Create network security group** blade, specify the following settings (leave others with their default values):
@ -236,6 +236,8 @@ In this task, you will deploy an Azure virtual machine scale set across availabi
| --- | --- | | --- | --- |
| Load balancer name | `vmss-lb` | | Load balancer name | `vmss-lb` |
>**Note:** Pause for a minute and review what you done. At this point, you have configured the virtual machine scale set with disks and networking. In the network configuration you have created a network security group and allowed HTTP. You have also created a load balancer with a public IP address.
1. On the **Scaling** tab, specify the following settings (leave others with their default values) and click **Next : Management >**: 1. On the **Scaling** tab, specify the following settings (leave others with their default values) and click **Next : Management >**:
| Setting | Value | | Setting | Value |
@ -249,7 +251,7 @@ In this task, you will deploy an Azure virtual machine scale set across availabi
| --- | --- | | --- | --- |
| Boot diagnostics | **Disable** | | Boot diagnostics | **Disable** |
1. Click **Next : Health >**: 1. Click **Next : Health >**.
1. On the **Health** tab, review the default settings without making any changes and click **Next : Advanced >**. 1. On the **Health** tab, review the default settings without making any changes and click **Next : Advanced >**.
@ -257,8 +259,7 @@ In this task, you will deploy an Azure virtual machine scale set across availabi
1. On the **Review + create** tab, ensure that the validation passed and click **Create**. 1. On the **Review + create** tab, ensure that the validation passed and click **Create**.
>**Note**: Wait for the virtual machine scale set deployment to complete. This should take approximately 5 minutes. >**Note**: Wait for the virtual machine scale set deployment to complete. This should take approximately 5 minutes. While you wait review the [documentation](https://learn.microsoft.com/azure/virtual-machine-scale-sets/overview).
## Task 4: Scale Azure Virtual Machine Scale Sets ## Task 4: Scale Azure Virtual Machine Scale Sets
@ -268,9 +269,7 @@ In this task, you scale the virtual machine scale set using a custom scale rule.
1. Choose **Scaling** from the menu on the left-hand side of the scale set window. 1. Choose **Scaling** from the menu on the left-hand side of the scale set window.
>**Note:**Notice you can **Manual scale** or **Custom autoscale**. In scale sets with a small number of VM instances, increasing or decreasing the instance count (Manual scale) may be best. In scale sets with a large number of VM instances, scaling based on metrics (Custom autoscale) may be more appropriate. >**Did you know?** You can **Manual scale** or **Custom autoscale**. In scale sets with a small number of VM instances, increasing or decreasing the instance count (Manual scale) may be best. In scale sets with a large number of VM instances, scaling based on metrics (Custom autoscale) may be more appropriate.
### Scale out rule ### Scale out rule
@ -278,7 +277,6 @@ In this task, you scale the virtual machine scale set using a custom scale rule.
1. Let's create a rule that automatically increases the number of VM instances. This rule scales out when the average CPU load is greater than 70% over a 10-minute period. When the rule triggers, the number of VM instances is increased by 20%. 1. Let's create a rule that automatically increases the number of VM instances. This rule scales out when the average CPU load is greater than 70% over a 10-minute period. When the rule triggers, the number of VM instances is increased by 20%.
| Setting | Value | | Setting | Value |
| --- | --- | | --- | --- |
| Metric source | **Current resource (vmss1)** | | Metric source | **Current resource (vmss1)** |
@ -294,6 +292,8 @@ In this task, you scale the virtual machine scale set using a custom scale rule.
![Screenshot of the scaling add rule page.](../media/az104-lab08-scale-rule.png) ![Screenshot of the scaling add rule page.](../media/az104-lab08-scale-rule.png)
1. Be sure to **Save** your changes.
### Scale in rule ### Scale in rule
1. During evenings or weekends, demand may decrease so it is important to create a scale in rule. 1. During evenings or weekends, demand may decrease so it is important to create a scale in rule.
@ -306,8 +306,10 @@ In this task, you scale the virtual machine scale set using a custom scale rule.
| --- | --- | | --- | --- |
| Operator | **Less than** | | Operator | **Less than** |
| Threshold | **30** | | Threshold | **30** |
| Operation | **decrease percent by** (review your other choices) | | Operation | **decrease percentage by** (review your other choices) |
| Instance count | **20** | | Percentage | **20** |
1. Be sure to **Save** your changes.
### Set the instance limits ### Set the instance limits
@ -329,11 +331,9 @@ In this task, you scale the virtual machine scale set using a custom scale rule.
## Task 5: Create a virtual machine using Azure PowerShell (option 1) ## Task 5: Create a virtual machine using Azure PowerShell (option 1)
1. Sign in to the Azure portal - `https://portal.azure.com`. 1. Use the icon (top right) to launch a **Cloud Shell** session. Alternately, navigate directly to `https://shell.azure.com`.
1. Use the menu to launch a **Cloud Shell** session. Alternately, navigate directly to `https://shell.azure.com`. 1. Be sure to select **PowerShell**. If necessary use the **Show advanced settings** and configure the shell storage.
1. If necessary configure the Cloud Shell. Be sure to select **PowerShell**.
1. Run the following command to create a virtual machine. When prompted, provide a username and password for the VM. While you wait check out the [New-AzVM](https://learn.microsoft.com/powershell/module/az.compute/new-azvm?view=azps-11.1.0) command reference for all the parameters associated with creating a virtual machine. 1. Run the following command to create a virtual machine. When prompted, provide a username and password for the VM. While you wait check out the [New-AzVM](https://learn.microsoft.com/powershell/module/az.compute/new-azvm?view=azps-11.1.0) command reference for all the parameters associated with creating a virtual machine.
@ -352,7 +352,7 @@ In this task, you scale the virtual machine scale set using a custom scale rule.
```powershell ```powershell
Get-AzVM ` Get-AzVM `
-ResourceGroupName 'az104-rg8' -ResourceGroupName 'az104-rg8' `
-Status -Status
``` ```
@ -362,7 +362,7 @@ In this task, you scale the virtual machine scale set using a custom scale rule.
``` ```
Stop-AzVM ` Stop-AzVM `
-ResourceGroupName 'az104-rg8' -ResourceGroupName 'az104-rg8' `
-Name 'myPSVM' ` -Name 'myPSVM' `
``` ```
@ -372,22 +372,22 @@ In this task, you scale the virtual machine scale set using a custom scale rule.
## Task 6: Create a virtual machine using the CLI (option 2) ## Task 6: Create a virtual machine using the CLI (option 2)
1. Sign in to the Azure portal - `https://portal.azure.com`. 1. Use the icon (top right) to launch a **Cloud Shell** session. Alternately, navigate directly to `https://shell.azure.com`.
1. Use the menu to launch a **Cloud Shell** session. Alternately, navigate directly to `https://shell.azure.com`. 1. Be sure to select **Bash**. If necessary use the **Show advanced settings** and configure the shell storage.
1. If necessary configure the Cloud Shell. Be sure to select **Bash**.
1. Run the following command to create a virtual machine. When prompted, provide a username and password for the VM. While you wait check out the [az vm create](https://learn.microsoft.com/cli/azure/vm?view=azure-cli-latest#az-vm-create) command reference for all the parameters associated with creating a virtual machine. 1. Run the following command to create a virtual machine. When prompted, provide a username and password for the VM. While you wait check out the [az vm create](https://learn.microsoft.com/cli/azure/vm?view=azure-cli-latest#az-vm-create) command reference for all the parameters associated with creating a virtual machine.
```sh ```sh
az vm create --name myCLIVM --resource-group az104-rg8 --image Ubuntu2204 --admin-username localadmin --generate-ssh-keys az vm create --name myCLIVM --resource-group az104-rg8 --image Ubuntu2204 --admin-username localadmin --generate-ssh-keys
```
1. Once the command completes, use **az vm show** to verify your machine was created. 1. Once the command completes, use **az vm show** to verify your machine was created.
```sh ```sh
az vm show --name myCLIVM --resource-group az104-rg8 --show-details az vm show --name myCLIVM --resource-group az104-rg8 --show-details
```
1. Verify the **powerState** is **VM Running**. 1. Verify the **powerState** is **VM Running**.
@ -395,6 +395,7 @@ In this task, you scale the virtual machine scale set using a custom scale rule.
```sh ```sh
az vm deallocate --resource-group az104-rg8 --name myCLIVM az vm deallocate --resource-group az104-rg8 --name myCLIVM
```
1. Use **az vm show** to ensure the **powerState** is **VM deallocated**. 1. Use **az vm show** to ensure the **powerState** is **VM deallocated**.