Support remote debugging of Python Apps on Azure App Service

[DonJayamanne]

See https://medium.com/@auchenberg/introducing-remote-debugging-of-node-js-apps-on-azure-app-service-from-vs-code-in-public-preview-9b8d83a6e1f0

Upstream feature request microsoft/vscode-azureappservice#484

[rajata07]

@brettcannon It seems that the upstream feature request has been already resolved. However, VS code doesn't support this feature.

[brettcannon]

@karthiknadig is this working on our end? I remember discussions around this but I can't remember where our support landed.

[karthiknadig]

Tyreke and I had tested this out (back in November). It was working. From the extension side there is no additional support needed. The app service extension had to provide the right attach configuration and that was enough. App service added the prompts necessary to enable debugging and provide the necessary settings needed for this. We had tested flask and django apps using the app service extension.

/cc @luabud

[brettcannon]

OK, so it sounds like this can be closed then.

[rajata07]

@karthiknadig I still get the following error when I try to start remote debugging:

Action: appService.StartRemoteDebug
Error type: Error
Error Message: Azure Remote Debugging is currently only supported for Node.js apps on Linux.

As mentioned Azure app service supports debugging on Python as well.

[karthiknadig]

@rajata07 this error is coming for the appservice extension. You should report it there. The appService extension sets up the connection (where the error seems to be coming from). Once the connection is ready and debug server has started, the appService extension starts the debug session in VS Code. This is where python extension gets involved providing remote debugging over the port provided by appservice.