当我使用 Azure Powershell 创建新 VM 时，我没有获得公共 IP 地址。 为什么？

Question

I just started playing around with Azure Powershell and I'm trying to create a new Azure VM.

Script:

$username = 'demoadmin'

$password = ConvertTo-SecureString 'Password123!@#' -AsPlainText -Force

$WindowsCred = New-Object System.Management.Automation.PSCredential ($username, $password)

New-AzVM -ResourceGroup 'psdemo-rg-uksouth' -Name 'psdemo-win-az' -Image 'win2016datacenter' -Size 'Standard_D2ads_v5' -Credential $WindowsCred -OpenPorts 3389

Result: Azure VM is successfully created, but there is no Public IP address assigned.

Looking at the documentation here I can see the description for parameter "PublicIpAddressName": "The name of a new (or existing) public IP address for the created VM to use. If not specified, a name will be generated.".

How can I make it assign a Public IP Address on creation?

Answer 1

When I run the PowerShell commands you provided, yes - it is not provisioned the Public IP address, but it will be assigned the Private IP Address by Azure dynamically.

If you do not pass the PublicIpAddressName parameter, then it will not be created automatically:

Following these MSFT Doc1 & Doc 2 , we have to pass the Public IP Address parameter to get assigned to the associated Virtual Machine by Azure.

PowerShell Script I used to get the Public IP Address while VM Creation in Azure :

#Create the Virtual Network
$vnet = @{
    Name = 'myVNet'
    ResourceGroupName = 'HariTestRg'
    Location = 'EastUS'
    AddressPrefix = '10.0.0.0/16'    
}
$virtualNetwork = New-AzVirtualNetwork @vnet

#Create the Subnet
$subnet = @{
    Name = 'default'
    VirtualNetwork = $virtualNetwork
    AddressPrefix = '10.0.0.0/24'
}
$subnetConfig = Add-AzVirtualNetworkSubnetConfig @subnet

$virtualNetwork | Set-AzVirtualNetwork

#Create the Virtual Machine by passing the Public IP Address parameter
$username = '<your-user-name>'
$password = ConvertTo-SecureString '<your-password>' -AsPlainText -Force
$WindowsCred = New-Object System.Management.Automation.PSCredential ($username, $password)
New-AzVm `
    -ResourceGroupName "HariTestRg" `
    -Name "psdemo-win-az02" `
    -Location "EastUS" `
    -VirtualNetworkName "myVnet" `
    -SubnetName "default" `
    -SecurityGroupName "myNetworkSecurityGroup" `
    -PublicIpAddressName "myPublicIpAddress2" `
    -ImageName "MicrosoftWindowsServer:WindowsServer:2016-Datacenter-with-Containers:latest" `
    -Credential $WindowsCred 

Result :