Remote Debugging DNX on Linux

[aluitink]

Is there a way to debug a DNX process running on Linux?

Does MS have anything like this planned and is it scheduled for a release?

[sayedihashimi]

@aluitink we have to enable debugging on linux first :)

With that said, can you explain how you might use remote debugging on linux? I'm looking for more scenario info and to get a better sense for what types of scenarios we can investigate.

[danielbardsley]

I'm not the original poster my use case for this is as follows: My environment is deployed and configured using vagrant/puppet. Puppet installs dnx and deploys the site already but my workflow would be much more convenient if I could edit files locally, have them synced automatically by vagrant and then debug against the code deployed to the virtual machine. I'm using Visual Studio on Windows but running the asp app on a Linux VM. It would be much more convenient to debug against the deployed version rather than having to go through a debug/deploy cycle.

[aluitink]

@sayedihashimi & @danielbardsley I am working on a VS Extension that hopefully will enable remote debugging on Linux. It is quite far from functional at the moment, but I am able to connect to a Mono Debug Agent and issue the initial VMStart command. It is going to be a long road .. quite untraveled by the looks of it. I've never attempted anything like this before, but I've found some similar projects from which I'm borrowing the pattern.

If you are interested in contributing/testing, the project comes with a Docker container to which the dnx application can be deployed and remotely started. I really only get a couple hours a week to work on this but it seems to be coming along nicely.

https://github.com/aluitink/aspnet-debug

[aluitink]

@sayedihashimi Ideally I'd not need to but as Kestrel and this entire framework is not quite finished yet, I sometimes run into issues using Kestrel server on Linux that cannot be reproduced with the Windows host. Generally, I'd just like to be able to step through an application running in Linux, as @danielbardsley mentioned the, Code, Deploy, Run, Exception, Fix, Deploy, Run cycle is tedious at best.

[sayedihashimi]

@aluitink I think we are looking at remote debugging but it will be based on .NET Core not mono.

[sayedihashimi]

@aluitink FYI https://github.com/Microsoft/MIEngine/wiki/Offroad-Debugging-of-.NET-Core-on-Linux---OSX-from-Visual-Studio. I'm meeting with debugger team to discuss improving this. I'd like for it to be on par with the Windows experience.

[webtools-bot]

The GitHub Issue Tracker for the aspnet/Tooling repo is being deprecated in favor of Visual Studio's Report a Problem tool.

If this issue is still a problem with the RTW release of Visual Studio 2017, please report a new issue using the Report a Problem tool. While you can still use .NET Core and ASP.NET Preview tools with Visual Studio 2015, Visual Studio 2017 is now the officially supported tool for developing .NET Core and ASP.NET Core projects.

By using the Report a Problem tool (available in both VS 2017 and VS 2015), you can collect detailed information about the problem, and send it to Microsoft with just a few button clicks. See Visual Studio's Talk to Us page for more details.

Please use the discussion topic here for feedback and questions on the deprecation of this issue tracker. Thanks!

[mlorbetske]

Debugging .NET Core projects on Linux is possible with Visual Studio 2017 (here's a blog post on it, it was written for a prerelease of Visual Studio 2017, but it still applies)