azure.net-coreazure-web-app-serviceazure-webapps

Issue with azure web app runtime stack .NET 6

  1. I want to create WebApp with .NET 6 Runtime Stack, OS as Windows. But not able to find .NET 6 Version while creating web app.

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  1. I tried to fetch Web App Stacks via API.
GET https://management.azure.com/providers/Microsoft.Web/webAppStacks?stackOsType=Windows&api-version=2024-04-01

Response From that API:

displayText  value       minorVersions                                         
-----------  -----       -------------                                         
.NET 9 (STS) dotnet9     {@{displayText=.NET 9 (STS); value=9; stackSettings=}}
.NET 8 (LTS) dotnet8     {@{displayText=.NET 8 (LTS); value=8; stackSettings=}}
.NET 7 (STS) dotnet7     {@{displayText=.NET 7 (STS); value=7; stackSettings=}}
.NET 6       dotnet6     {@{displayText=.NET 6 (LTS); value=6; stackSettings=}}
.NET 5       dotnet5     {@{displayText=.NET 5; value=5; stackSettings=}}      
.NET Core 3  dotnetcore3 {@{displayText=.NET Core 3.1 (LTS); value=3.1; stac...
.NET Core 2  dotnetcore2 {@{displayText=.NET Core 2.2; value=2.2; stackSetti...
.NET Core 1  dotnetcore1 {@{displayText=.NET Core 1.1; value=1.1; stackSetti...
ASP.NET V4   aspdotnetv4 {@{displayText=ASP.NET V4.8; value=v4.8; stackSetti...
ASP.NET V3   aspdotnetv3 {@{displayText=ASP.NET V3.5; value=v3.5; stackSetti...

From API Response I am able to see .NET 6 Version and older versions also.

Please I need help to understand this differences

What is the approach to create WebApp with Runtime Stack .NET 6.

is it good to stay with .NET 6 Instead of latest LTS .NET 8 ?

Solution

  • First of all I would recommend to always go to the latest LTS version which would mean .NET 8 in your case. With the latest LTS you can be sure to have the latest stable features and security.

    But if you want to stick with an older version and want to create a new webapp you have to use the Azure CLI or the Azure PowerShell which is described here.

    The official docs to create a web app can be found here:

    But unfortunately is .NET 6 no longer supported which can be seen when you execute the following Azure CLI command

    az webapp list-runtimes

    If you try to use an unsupported version you get an error that your runtime is not supported. dotnet6 not allowed

    Update

    The only way to run .NET 6 on a web app is to host containers on your web app. But I would not recommend to use that way because .NET 6 is no longer supported by Microsoft and you don't want to use unsupported versions which are also open to the internet --> Can be a security risk.