Azure Key Vault

Using Key Vault

Link for use on key vault with info on how to renew certificates:

TLS termination with Azure Key Vault certificates | Microsoft Learn

Add certificate in azure key vault to application gateway available certificates when key vault is using RBAC:

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# Get the Application Gateway we want to modify
$appgw = Get-AzApplicationGateway -Name MyApplicationGateway -ResourceGroupName MyResourceGroup
# Specify the resource id to the user assigned managed identity - This can be found by going to the properties of the managed identity
Set-AzApplicationGatewayIdentity -ApplicationGateway $appgw -UserAssignedIdentityId "/subscriptions/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/resourceGroups/MyResourceGroup/providers/Microsoft.ManagedIdentity/userAssignedIdentities/MyManagedIdentity"
# Get the secret ID from Key Vault
$secret = Get-AzKeyVaultSecret -VaultName "MyKeyVault" -Name "CertificateName"
$secretId = $secret.Id.Replace($secret.Version, "") # Remove the secret version so Application Gateway uses the latest version in future syncs
# Specify the secret ID from Key Vault 
Add-AzApplicationGatewaySslCertificate -KeyVaultSecretId $secretId -ApplicationGateway $appgw -Name $secret.Name
# Commit the changes to the Application Gateway
Set-AzApplicationGateway -ApplicationGateway $appgw

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