AddAzureWebAppDiagnostics Logging Provider not honoring filters

[fvilches17]

E.g.

1. Set appsettings.json like so:
   "Logging": {
   "LogLevel": {
   "MyNamespace.*": "Debug",
   "Default": "Error"
   }
   }

2. Run web app locally and see only you own logs printed to the console.

3. Add AddAzureWebAppDiagnostics to logging in program.cs

4. Deploy your asp.net core app (in my case I tried 2.2 and 3.0)

5. Enable logs in AppService logs for your web app in azure portal. Log level = Information

6. Watch logs come in. You notice ALL logs (e.g. Microsoft.*) come in.

You can also refer here
https://stackoverflow.com/questions/42789154/filtering-logs-in-azure-web-app-diagnostics-logs

---

Document Details

⚠ Do not edit this section. It is required for docs.microsoft.com ➟ GitHub issue linking.

• ID: 7184a308-a254-9350-a5cd-5bced1f369ae
• Version Independent ID: 726e3bf1-f367-d733-8933-bccc04da0e16
• Content: Logging in .NET Core and ASP.NET Core
• Content Source: aspnetcore/fundamentals/logging/index.md
• Product: aspnet-core
• Technology: aspnetcore-fundamentals
• GitHub Login: @Rick-Anderson
• Microsoft Alias: riande

[buttons019]

Hi, I found the same issue.
I'd like to know (sorry for my lack of experience) whether this is being treated as a bug or differently and when a solution is planned to be available. I had to suspend logging on an almost live app and need to reestablish it. Thanks,

[Rick-Anderson]

@Tratcher should you transfer this to https://github.com/aspnet/AspNetCore/issues ?
I'd do it but I don't have write permission to your repo.
cc @guardrex

[Rick-Anderson]

@fvilches17 @buttons019 see #14924

[Tratcher]

Looks like a duplicate of dotnet/aspnetcore#3279

[Rick-Anderson]

@guardrex see @pakrym answer

Diagnostic Logs Level is only used for Log streaming output. It doesn't apply to any other logging providers.

Can you add that to this doc?

[guardrex]

Sure thing.

[buttons019]

@fvilches17 @buttons019 see #14924

@Rick-Anderson thanks for the reply and the link. Unfortunately it solves the problem for whoever cannot get the app to log, but not for me (and I think @fvilches17) cause we need to filter what's being already logged. Any hint on how to achieve that? Thanks again,

[guardrex]

Fixed by #15772.