Question 105760 in Azure Question posted in
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Azure function app showing a warning like Your app is pinned to an unsupported version of dotnet when I use terraform

I am trying to deploy Azure functions using Azure DevOps.
I have used terraform to create the required resources(Azure functions app) in Azure portal.
As a next steps with the build and release pipeline I have deployed actual function code written in C#.

I am getting the below error:
Your app is pinned to an unsupported runtime version for ‘dotnet’. For better performance, we recommend using one of our supported versions instead: ~3.

But when I create a function manually from the Azure portal I am not getting any warning.In this case also I am using Azure devops.

My build pipeline have simple tasks like selecting .NET core sdk(6.0.X) then dot net build using a *.csproj and archive and publish. These artifacts I am deploying in a release pipeline using Azure function task and selected deployment option as Zip deploy.

I tried both Zip deploy and Auto detect but both the cases I am getting the warning.

Why I am getting the warning? But for linux function I am not getting this kind of warning

.csproj code:

<Project Sdk="Microsoft.NET.Sdk">
 <PropertyGroup> 
<TargetFramework>net6.0</TargetFramework>
 <AzureFunctionsVersion>v4</AzureFunctionsVersion>
 <_FunctionsSkipCleanOutput>true</_FunctionsSkipCleanOutput>
 </PropertyGroup>
 <ItemGroup>
 <PackageReference Include="Microsoft.Azure.Functions.Extensions" Version="1.1.0" />
 <PackageReference Include="Microsoft.NET.Sdk.Functions" Version="4.1.0" />
 </ItemGroup>
Tags:

4

Answers


  1. 0

    Your error message is related with the function runtime version. Currently, Azure Function runtime ~4 is recommended for running .NET 6.0 according to the docs.

    You will need to specify the function runtime version ~4 in your Terraform manifest. This can be achieved using functions_extension_version argument for the azurerm_windows_function_app resource.

    As of azurerm provider 3.11.0, default functions_extension_version argument already defaults to ~4. So, in case you are using the latest provider version, you can either remove the current functions_extension_version = "~3" setting or update it with the version ~4.

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  2. 0

    I didn’t use Terraform, but found that after I used the Azure CLI to set the dotnet version, the message went away.

    az functionapp config set --net-framework-version v6.0 -g <RESOURCE_GROUP_NAME> -n <APP_NAME>

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  4. 0

    I am using terraform, and the config files are here for you to see and the specific file is this.

    As you can see the FUNCTIONS_EXTENSION_VERSION is assigned "~4".

    app_settings = {
  "WEBSITE_RUN_FROM_PACKAGE"       = "",
  "FUNCTIONS_WORKER_RUNTIME"       = "dotnet"
  "APPINSIGHTS_INSTRUMENTATIONKEY" = azurerm_application_insights.application_insights.instrumentation_key,
  FUNCTIONS_EXTENSION_VERSION      = "~4"
}

    And because of this I get the following message.

    Your app is pinned to an unsupported runtime version for ‘dotnet’. For better performance, we recommend using one of our supported versions instead: ~3.

    Function App Configuration1

    And the same image zoomed.

    Function App Configuration2

    So I changed

    FUNCTIONS_EXTENSION_VERSION      = "~4"

    to

    FUNCTIONS_EXTENSION_VERSION      = "~3"

    Now this fixed this issues.

    Function App Configuration3

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