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ARM - Virtual Network (VNet) - Remove Subnet.ps1
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ARM - Virtual Network (VNet) - Remove Subnet.ps1
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# Variables - Resource Group
$rgShortName = "qweasdzxc"
$rgSuffix = "-rg"
$rgName = "${rgShortName}${rgSuffix}"
# Variables - Virtual Network
$vnetShortName = "qweasdzxc"
$vnetSuffix = "-vnet"
$vnetName = "${vnetShortName}${vnetSuffix}"
<# Remove Subnet - from Virtual Network (VNet) #>
<#
Virtual Network (VNet)
#>
# Variables - Subnet
$subnetShortName = "Test"
$subnetSuffix = "subnet"
$subnetName = "${subnetShortName}${subnetSuffix}"
$addressPrefix = "10.0.6.0/24"
<# Create Subnet (in VNet), if it does not exist #>
$vnet = Get-AzureRmVirtualNetwork -Name $vnetName -ResourceGroupName $rgName
Get-AzureRmVirtualNetworkSubnetConfig -Name $subnetName -VirtualNetwork $vnet -ErrorVariable isSubnetExist -ErrorAction SilentlyContinue `
If (!$isSubnetExist)
{
Write-Output "Subnet exist"
Write-Verbose "Fetching Virtual Network: {$vnetName}"
$vnet = Get-AzureRmVirtualNetwork -Name $vnetName -ResourceGroupName $rgName
Write-Verbose "Removing Subnet: {$subnetName}"
Remove-AzureRmVirtualNetworkSubnetConfig -Name $subnetName -VirtualNetwork $vnet
# updates the existing virtual network with the new subnet.
$vnet | Set-AzureRmVirtualNetwork
}
Else
{
Write-Output "Subnet does not exist"
}
Write-Verbose "Get list of all subnets"
Write-Output "Subnets"
Write-Verbose "Fetching Virtual Network: {$vnetName}"
$vnet = Get-AzureRmVirtualNetwork -Name $vnetName -ResourceGroupName $rgName
Get-AzureRmVirtualNetworkSubnetConfig -VirtualNetwork $vnet `
| Select-Object Name, AddressPrefix `
| Format-Table -AutoSize -Wrap
<#
## References
https://docs.microsoft.com/en-us/powershell/module/azurerm.network/remove-azurermvirtualnetworksubnetconfig?view=azurermps-6.13.0
#>