About This Page
This page is part of the Azure documentation. It contains code examples and configuration instructions for working with Azure services.
Bias Analysis
Bias Types:
⚠️
powershell_heavy
⚠️
windows_tools
⚠️
missing_linux_example
⚠️
windows_first
Summary:
The documentation page demonstrates a strong bias towards Windows and PowerShell. All command-line examples and automation scripts are provided exclusively using Azure PowerShell, with no mention of Azure CLI, Bash, or Linux-native tooling. The instructions assume the use of PowerShell modules and Windows-centric scripting patterns, and there are no equivalent examples or guidance for Linux or cross-platform users. The only non-PowerShell automation mentioned is Terraform, but this is referenced as an external link and not integrated into the main migration workflow.
Recommendations:
- Provide equivalent Azure CLI (az) command examples for all migration steps, including policy transformation and firewall SKU upgrades.
- Include Bash shell script examples or guidance for Linux/macOS users.
- Mention cross-platform tools (such as Azure CLI and REST API) alongside PowerShell, and present them in parallel or before PowerShell examples.
- Clarify that PowerShell Core is cross-platform if PowerShell must be used, and provide installation instructions for Linux/macOS.
- Where automation scripts are provided, offer both PowerShell and Bash/CLI versions, or reference official cross-platform scripts.
- Explicitly state which steps are platform-agnostic (e.g., Azure Portal, Terraform) and which require Windows/PowerShell, to help users plan accordingly.
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Flagged Code Snippets
<#
.SYNOPSIS
Given an Azure firewall policy id the script will transform it to a Premium Azure firewall policy.
The script will first pull the policy, transform/add various parameters and then upload a new premium policy.
The created policy will be named <previous_policy_name>_premium if no new name provided else new policy will be named as the parameter passed.
.Example
Transform-Policy -PolicyId /subscriptions/XXXXX-XXXXXX-XXXXX/resourceGroups/some-resource-group/providers/Microsoft.Network/firewallPolicies/policy-name -NewPolicyName <optional param for the new policy name>
#>
param (
#Resource id of the azure firewall policy.
[Parameter(Mandatory=$true)]
[string]
$PolicyId,
#new filewallpolicy name, if not specified will be the previous name with the '_premium' suffix
[Parameter(Mandatory=$false)]
[string]
$NewPolicyName = ""
)
$ErrorActionPreference = "Stop"
$script:PolicyId = $PolicyId
$script:PolicyName = $NewPolicyName
function ValidatePolicy {
[CmdletBinding()]
param (
[Parameter(Mandatory=$true)]
[Object]
$Policy
)
Write-Host "Validating resource is as expected"
if ($null -eq $Policy) {
Write-Error "Received null policy"
exit(1)
}
if ($Policy.GetType().Name -ne "PSAzureFirewallPolicy") {
Write-Error "Resource must be of type Microsoft.Network/firewallPolicies"
exit(1)
}
if ($Policy.Sku.Tier -eq "Premium") {
Write-Host "Policy is already premium" -ForegroundColor Green
exit(1)
}
}
function GetPolicyNewName {
[CmdletBinding()]
param (
[Parameter(Mandatory=$true)]
[Microsoft.Azure.Commands.Network.Models.PSAzureFirewallPolicy]
$Policy
)
if (-not [string]::IsNullOrEmpty($script:PolicyName)) {
return $script:PolicyName
}
return $Policy.Name + "_premium"
}
function TransformPolicyToPremium {
[CmdletBinding()]
param (
[Parameter(Mandatory=$true)]
[Microsoft.Azure.Commands.Network.Models.PSAzureFirewallPolicy]
$Policy
)
$NewPolicyParameters = @{
Name = (GetPolicyNewName -Policy $Policy)
ResourceGroupName = $Policy.ResourceGroupName
Location = $Policy.Location
BasePolicy = $Policy.BasePolicy.Id
ThreatIntelMode = $Policy.ThreatIntelMode
ThreatIntelWhitelist = $Policy.ThreatIntelWhitelist
PrivateRange = $Policy.PrivateRange
DnsSetting = $Policy.DnsSettings
SqlSetting = $Policy.SqlSetting
ExplicitProxy = $Policy.ExplicitProxy
DefaultProfile = $Policy.DefaultProfile
Tag = $Policy.Tag
SkuTier = "Premium"
}
Write-Host "Creating new policy"
$premiumPolicy = New-AzFirewallPolicy @NewPolicyParameters
Write-Host "Populating rules in new policy"
foreach ($ruleCollectionGroup in $Policy.RuleCollectionGroups) {
$ruleResource = Get-AzResource -ResourceId $ruleCollectionGroup.Id
$ruleToTransform = Get-AzFirewallPolicyRuleCollectionGroup -AzureFirewallPolicy $Policy -Name $ruleResource.Name
$ruleCollectionGroup = @{
FirewallPolicyObject = $premiumPolicy
Priority = $ruleToTransform.Properties.Priority
Name = $ruleToTransform.Name
}
if ($ruleToTransform.Properties.RuleCollection.Count) {
$ruleCollectionGroup["RuleCollection"] = $ruleToTransform.Properties.RuleCollection
}
Set-AzFirewallPolicyRuleCollectionGroup @ruleCollectionGroup
}
}
function ValidateAzNetworkModuleExists {
Write-Host "Validating needed module exists"
$networkModule = Get-InstalledModule -Name "Az.Network" -MinimumVersion 4.5 -ErrorAction SilentlyContinue
if ($null -eq $networkModule) {
Write-Host "Please install Az.Network module version 4.5.0 or higher, see instructions: https://github.com/Azure/azure-powershell#installation"
exit(1)
}
$resourceModule = Get-InstalledModule -Name "Az.Resources" -MinimumVersion 4.2 -ErrorAction SilentlyContinue
if ($null -eq $resourceModule) {
Write-Host "Please install Az.Resources module version 4.2.0 or higher, see instructions: https://github.com/Azure/azure-powershell#installation"
exit(1)
}
Import-Module Az.Network -MinimumVersion 4.5.0
Import-Module Az.Resources -MinimumVersion 4.2.0
}
ValidateAzNetworkModuleExists
$policy = Get-AzFirewallPolicy -ResourceId $script:PolicyId
ValidatePolicy -Policy $policy
TransformPolicyToPremium -Policy $policy
$azfw = Get-AzFirewall -Name "<firewall-name>" -ResourceGroupName "<resource-group-name>"
$azfw.Deallocate()
Set-AzFirewall -AzureFirewall $azfw
$azfw = Get-AzFirewall -Name "FW Name" -ResourceGroupName "RG Name"
$azfw.Sku.Tier="Premium"
$vnet = Get-AzVirtualNetwork -ResourceGroupName "RG Name" -Name "VNet Name"
$publicip1 = Get-AzPublicIpAddress -Name "Public IP1 Name" -ResourceGroupName "RG Name"
$publicip2 = Get-AzPublicIpAddress -Name "Public IP2 Name" -ResourceGroupName "RG Name"
$azfw.Allocate($vnet,@($publicip1,$publicip2))
Set-AzFirewall -AzureFirewall $azfw
$azfw = Get-AzFirewall -Name "<firewall-name>" -ResourceGroupName "<resource-group-name>"
$azfw.Sku.Tier="Premium"
$vnet = Get-AzVirtualNetwork -ResourceGroupName "<resource-group-name>" -Name "<Virtual-Network-Name>"
$publicip = Get-AzPublicIpAddress -Name "<Firewall-PublicIP-name>" -ResourceGroupName "<resource-group-name>"
$mgmtPip = Get-AzPublicIpAddress -ResourceGroupName "<resource-group-name>"-Name "<Management-PublicIP-name>"
$azfw.Allocate($vnet,$publicip,$mgmtPip)
Set-AzFirewall -AzureFirewall $azfw
$azfw = Get-AzFirewall -Name "<firewall-name>" -ResourceGroupName "<resource-group-name>"
$azfw.Sku.Tier="Premium"
$vnet = Get-AzVirtualNetwork -ResourceGroupName "<resource-group-name>" -Name "<Virtual-Network-Name>"
$publicip = Get-AzPublicIpAddress -Name "<Firewall-PublicIP-name>" -ResourceGroupName "<resource-group-name>"
$azfw.Allocate($vnet,$publicip)
Set-AzFirewall -AzureFirewall $azfw
$azfw = Get-AzFirewall -Name "<firewall-name>" -ResourceGroupName "<resource-group-name>"
$azfw.Deallocate()
Set-AzFirewall -AzureFirewall $azfw
$azfw = Get-AzFirewall -Name "<firewall-name>" -ResourceGroupName "<resource-group-name>"
$hub = get-azvirtualhub -ResourceGroupName "<resource-group-name>" -name "<vWANhub-name>"
$azfw.Sku.Tier="Premium"
$azfw.Allocate($hub.id)
Set-AzFirewall -AzureFirewall $azfw