Enable remote debugging for PowerShell Function apps

[Francisco-Gamino]

Remote debugging for C# functions apps is possible via Visual Studio. This work item is to track and figure out what pieces need to be enable to support this for PowerShell function apps.

[Francisco-Gamino]

The work to enable this for the Node worker is being tracked by Azure/azure-functions-host#5344.

[Francisco-Gamino]

cc @pragnagopa

[JustinGrote]

It seems to me trying to use any of the native c# stuff would be difficult, instead I would follow the PSES/VSCode Powershell Extension's lead and use the powershell host to trigger a debug, but rather than a pipe like PSES/VSCode uses it could be a remote session that shows up in the log with an IP, and then you can attach a debugger using the normal remote powershell methods. This might be difficult due to the sandbox restructions of app service however...

[pragnagopa]

FYI:

• Remote debugging tools for java functions: https://www.npmjs.com/package/cloud-debug-tools
• More docs: https://code.visualstudio.com/docs/java/java-azurefunctions#_remote-debugging