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The site worked with .NET Core 6. I updated it to .NET Core 8, changed the configuration in the App Service to >NET Core 8 and....503 errors.
I turned on logging and Application Insights. No errors are shown in the log stream on in the Application Insights failures. No requests are showing in Application Insights either, so the browser requests are not getting very far.
When I look at Kudo, it looks like .NET 8 wasn't installed so I added the runtime as a site extension. But that didn't make a difference.
The built-in solution/problem detection tools don't see anything. They report the service is healthy.
Any suggestions of where I can look next?
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Have you looked at the eventlog.xml in LogFiles in Kudo?
Looks like .NET 8 core isn't installed from the event log errors 2294 and 2276.
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@Joe Wilson Apologies for late response here!
This could be due to, .NET 8 is still in the Early Access phase, and some regions in beta. The Release responsible to pre-install .NET 8 bits on windows Apps should be completed soon and you should be able to run .NET 8 apps on Windows in majority of the regions/stamps in coming weeks.
We appreciate your patience as we wait for the App Service Team to provide an update.
Hope this helps.
It's very weird. I have installed .NET 8 Core runtime with the site extensions, and my instance says it's available.
Oh, and yes @SnehaAgrawal-MSFT it is still in Early Access, but almost a month after GA?
@Joe Wilson Update- You should now be able to use .NET 8 confidently in both Linux and Windows App Service, discussed issues are kind of fixed. Also, Team is working on the deployment at portal side to remove the “Early Access” label, which will add to the confidence. Keep you posted further.
@Joe Wilson update- You should be able to run .NET 8 apps on Windows in majority of the regions/stamps.
Also, team, is planning to remove the “Early Access” label once roll out is completed. ETA in coming weeks (tentatively).
@Joe Wilson Update- Early access label is removed from Portal for .NET 8 and with this there are no more open items for .NET 8.
Please let us know if further query or issue remains.
Please accept as "Yes" if the answer provided is useful, so that you can help others in the community looking for remediation for similar issues.