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I am trying to delete a function app so that I can recreate it but when I try to recreate it says it already exists

This is the command I used to delete app

az functionapp delete --name MyFunctionApp --resource-group azure-functions

Then I listed the fucntions list and it returned nothing since I have no other functions.

az functionapp list --output table

I even went as far as to delete the resource group where function resides. The resource group is gone

az group delete --name azure-functions

Yet when I try to run this code I get an error

az functionapp create --resource-group azure-functions2 --consumption-plan-location eastus --runtime python --runtime-version 3.11 --functions-version 4 --name MyFunctionApp --storage-account azurefunctions --os-type Linux

Error output

Website with given name MyFunctionApp already exists.

I can probably create one with a new name yes but I rather make sure I have cleaned house and I dont have any old loose ends that may cause confusion when I redeploy.

Is there some thing I am missing to delete somewhere. I deleted the resource that had the function I am at a loss here. I do have 1 more resource group but that has 0 functions.

2

Answers


  1. Azure Function Apps have a global scope. A function app is stored globally despite of region or location in domain as <name>.azurewebsites.net. So, when you have deleted a function app, then someone might have created with that name due to which you are unable to create and you will get an error saying:

    az functionapp create --resource-group rg --consumption-plan-location westus --runtime python --runtime-version 3.11 --functions-version 4 --name rtest --storage-account testst76 --os-type Linux
    

    enter image description here

    I even went as far as to delete the resource group where function resides. The resource group is gone

    Yes, you might have deleted but someone might have used it and created it.

    According to SO-Thread1 and SO-Thread2 it says:

    Function Apps or and PaaS services with public endpoints must have globally unique name

    Even while creating it in Portal when i use common name demo98 it says not available and use some other unique name, it takes it:

    enter image description here

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  2. the az functionapp delete command doesnt instantly delete. It schedules a background delete and hides the function from view. this is why it doesn’t appear in az functionapp list

    try waiting 15 mins before creating the function again.

    I tend to use the portal for function delete as it gives a notification when the job is actually done.

    also the delete command doesn’t remove the storage account depending on your setup you may need to delete that too.

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