Update Path based rules under Path-based routing in AGW using Powershell/CLI

Question

Hello Team, I want to update the existing path based rule for eg: /test* is the path and it is having one backendsetting and backendtarget. I want to write a script in powershell/CLI where I can able to update new value of backendsetting and backendtarget for /test*

Answer 1

Bagh, Saujol Welcome to the Microsoft Q&A Platform. Thank you for reaching out & I hope you are doing well. The following commands and document would come in handy,

• Set-AzApplicationGatewayUrlPathMapConfig
• Get-AzApplicationGatewayUrlPathMapConfig
• Create an application gateway with URL path-based redirection using Azure PowerShell

Please find the PS script below, for modifying the PathBasedRules of a Rule

$appgw = Get-AzApplicationGateway -ResourceGroupName <RGName> -Name <AppGwName>
$poolSettings = Get-AzApplicationGatewayBackendHttpSettings -ApplicationGateway $appgw -Name <HttpSettingsForThePathRule>
$defaultPool = Get-AzApplicationGatewayBackendAddressPool -ApplicationGateway 
$appgw -Name <TheDefaultPool>

$pathBasedPool1 = Get-AzApplicationGatewayBackendAddressPool -ApplicationGateway $appgw -Name <ThePoolYouWantToAddForPath1>
$pathBasedPool2 = Get-AzApplicationGatewayBackendAddressPool -ApplicationGateway $appgw -Name <ThePoolYouWantToAddForPath2>

$PathRule1 = New-AzApplicationGatewayPathRuleConfig -Paths "/path1/*" -Name pathPathRule1 -BackendAddressPool $pathBasedPool -BackendHttpSettings $poolSettings 

$PathRule2 = New-AzApplicationGatewayPathRuleConfig -Paths "/path2/*" -Name pathPathRule2 -BackendAddressPool $pathBasedPool -BackendHttpSettings $poolSettings 

$appgw = Set-AzApplicationGatewayUrlPathMapConfig -ApplicationGateway $appgw -Name <NameOfTheRuleinAppGw> -PathRules $PathRule1, $PathRule2 -DefaultBackendAddressPoolId $defaultPool.Id -DefaultBackendHttpSettingsId $poolSettings.Id

Set-AzApplicationGateway -ApplicationGateway $appgw

The above is a generic one. In your case, you can use one PathRule and get this done. So, your commands become,

$PathRule1 = New-AzApplicationGatewayPathRuleConfig -Paths "/test*" -Name pathPathRule1 -BackendAddressPool $pathBasedPool -BackendHttpSettings $poolSettings 

and 


$appgw = Set-AzApplicationGatewayUrlPathMapConfig -ApplicationGateway $appgw -Name <NameOfTheRuleinAppGw> -PathRules $PathRule1 -DefaultBackendAddressPoolId $defaultPool.Id -DefaultBackendHttpSettingsId $poolSettings.Id

Hope this helps. Thanks, Kapil

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