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LouisT's avatar
LouisT
Copper Contributor
May 14, 2026

Remote debug options for Linux container on App Services

We run .Net hosted on Linux Docker containers running in App Service. This makes debugging very difficult as while there is an option for remote debugging, this is only for Windows containers. https...
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Jamony's avatar
Jamony
MCT
Jun 26, 2026

Today I would plan around SSH/tunnel-based diagnostics rather than expecting the Windows App Service "Remote Debugging" switch to work for Linux containers.

 

For Linux custom containers on App Service, the supported path is to enable SSH in the container, then connect through App Service SSH or `az webapp ssh`. For .NET, you can sometimes attach from Visual Studio to a Linux process over SSH, but it is not the same as the App Service Windows remote debugger experience and it requires the container to expose a usable SSH environment. In production, I would keep that off by default and use a separate debug slot or a temporary diagnostic image.

 

For routine troubleshooting, I would combine:

 

1. App Service log stream and container logs.

2. Application Insights/OpenTelemetry traces.

3. SSH only for short-lived inspection.

4. A staging slot with the same image and config for deeper attach-to-process debugging.

 

Useful docs:

https://learn.microsoft.com/azure/app-service/configure-linux-open-ssh-session

https://learn.microsoft.com/visualstudio/debugger/remote-debugging-dotnet-core-linux-with-ssh