Can not delete a Function

Question

Hi there,

Removing a function failed with an error:

An operation on the Virtual Network has failed. Details: {"error":{"code":"ResourceNotFound","message":"The Resource 'Microsoft.Network/virtualNetworks/vnet-myvnetname' under resource group 'rg-mygroupname' was not found. For more details please go to https://aka.ms/ARMResourceNotFoundFix"}}

To create a function I followed Tutorial: Integrate Azure Functions with an Azure virtual network by using private endpoints. After testing I tried to clean up the resources using az cli

as group delete --name 'rg-mygroupname'

The same error when using Azure Portal and az functionapp delete

It took 12 hours to run but a function and application service plan are not removed but all other resources are deleted. And resource group status is success again not deleting.

As I understand the problem is vnet-myvnetname is removed but myfunction is still referring to one of the subnet. But vnet is already removed.

az functionapp vnet-integration list --name myfunction -g rg-mygroupname

I am getting an error above when trying to remove vnet-integraion:

az functionapp vnet-integration remove --name myfunction -g rg-mygroupname

How can I remove an Azure Function app in this situation?

Answer 1

Found a solution to resolve my issue:

1. Create a new Azure VNet and subnet with the exact same names
2. Run az functionapp vnet-integration remove --name myfunction -g rg-mygroupname
3. Run az functionapp delete --name fnapp-vivethere3 -g rg-vivethere3

Reason of issue:

I have tried to delete an Azure Function without disconnecting the VNet integration first.