When managing Azure MySQL databases, you may need to create virtual network rules to control access to your database. The New-AzMySqlVirtualNetworkRule cmdlet in PowerShell is a powerful tool that allows you to create these rules efficiently. This article will guide you through the process of using this cmdlet in your PowerShell scripts, providing practical examples to illustrate its usage.

Prerequisites

Before you begin, ensure that you have the following:

1. Azure PowerShell installed. You can install it using the following command:

   Install-Module -Name Az -AllowClobber -Force

2. Logged into your Azure account using:

   Connect-AzAccount

Step-by-Step Guide

1. Define Variables

First, define the variables you'll need, such as the resource group name, server name, virtual network name, and subnet name.

$resourceGroupName = "MyResourceGroup"
$serverName = "MyMySqlServer"
$vnetName = "MyVirtualNetwork"
$subnetName = "MySubnet"
$vnetRuleName = "MyVnetRule"

2. Get the Virtual Network and Subnet IDs

You need to retrieve the resource IDs for the virtual network and subnet.

$vnet = Get-AzVirtualNetwork -ResourceGroupName $resourceGroupName -Name $vnetName
$subnet = Get-AzVirtualNetworkSubnetConfig -VirtualNetwork $vnet -Name $subnetName

3. Create the Virtual Network Rule

Now, use the New-AzMySqlVirtualNetworkRule cmdlet to create the virtual network rule.

New-AzMySqlVirtualNetworkRule -ResourceGroupName $resourceGroupName `
                             -ServerName $serverName `
                             -VirtualNetworkRuleName $vnetRuleName `
                             -VirtualNetworkSubnetId $subnet.Id

Complete Script Example

Here is a complete script that combines all the steps:

# Define variables
$resourceGroupName = "MyResourceGroup"
$serverName = "MyMySqlServer"
$vnetName = "MyVirtualNetwork"
$subnetName = "MySubnet"
$vnetRuleName = "MyVnetRule"

# Get the Virtual Network and Subnet IDs
$vnet = Get-AzVirtualNetwork -ResourceGroupName $resourceGroupName -Name $vnetName
$subnet = Get-AzVirtualNetworkSubnetConfig -VirtualNetwork $vnet -Name $subnetName

# Create the Virtual Network Rule
New-AzMySqlVirtualNetworkRule -ResourceGroupName $resourceGroupName `
                             -ServerName $serverName `
                             -VirtualNetworkRuleName $vnetRuleName `
                             -VirtualNetworkSubnetId $subnet.Id

Conclusion

Using the New-AzMySqlVirtualNetworkRule cmdlet in PowerShell scripts is a straightforward way to manage virtual network rules for your Azure MySQL databases. By following the steps outlined in this article, you can easily create and manage these rules to control access to your databases.