[Az.Functions] Fix cloud portability by using dynamic endpoints for storage (#29035)

Author: Francisco-Gamino

src/Functions/Functions.Autorest/custom/HelperFunctions.ps1

@@ -160,15 +160,14 @@ function GetEndpointSuffix
     [Microsoft.Azure.PowerShell.Cmdlets.Functions.DoNotExportAttribute()]
     param()
 
-    $environmentName = (Get-AzContext).Environment.Name
+    $storageEndpointSuffix = (Get-AzContext).Environment.StorageEndpointSuffix
 
-    switch ($environmentName)
+    if ([string]::IsNullOrWhiteSpace($storageEndpointSuffix))
     {
-        "AzureUSGovernment" { ';EndpointSuffix=core.usgovcloudapi.net' }
-        "AzureChinaCloud"   { ';EndpointSuffix=core.chinacloudapi.cn' }
-        "AzureCloud"        { ';EndpointSuffix=core.windows.net' }
-        default { '' }
+        return ''
     }
+
+    return ";EndpointSuffix=$storageEndpointSuffix"
 }
 
 function NewAppSetting

src/Functions/Functions/ChangeLog.md

@@ -19,6 +19,8 @@
 -->
 ## Upcoming Release
 
+* Fixed cloud portability by using dynamic endpoints for storage [#29034]
+
 ## Version 4.3.0
 * Added FlexConsumption support to Get-AzFunctionAppAvailableLocation, which returns a list of regions that supported Flex Consumption, including locations supporting zone redundancy (currently applied only to Flex Consumption)
 * Added a new cmdlet Get-AzFunctionAppFlexConsumptionRuntime to retrieve Flex Consumption runtimes for a specified location