from Hacker News

Building a Firecracker-Powered Course Platform to Learn Docker and Kubernetes

by fazkan on 3/26/25, 8:08 PM with 12 comments

  • by notesinthefield on 3/27/25, 12:11 AM

    This is neat. I left cloud infra work before everyone wanted k8s knowledge and Ive always assumed im 50% of the way there having docker and nomad experience
  • by nickandbro on 3/26/25, 8:34 PM

    This is awesome, a lot of work to give users a interactive environment. I am working on a similar setup with my own project, vimgolf.ai , where I help users learn vim through connecting users with vim instances.
  • by bittermandel on 3/27/25, 12:49 PM

    This is amazing! We built something similar at Jetstack based on Kata Containers, but it was running in Kubernetes itself.

    This is exactly what I would love to build if I had the time <3

  • by suralind on 3/27/25, 1:26 PM

    Awesome article, out of curiosity, how much time did it take you to implement all of that?

    I have a somewhat similar need, but for a totally different space hence the question.

  • by MortyWaves on 3/26/25, 11:41 PM

    I've seen variations of this a few times, especially with Firecracker. I'm surprised there aren't ready made solutions for this use case already.
  • by fideloper on 3/27/25, 10:16 AM

    Wait, how do you run firecracker VMs in containers? The networking part of firecracker has been the most painful for me, I’d love to know more.
  • by plondon514 on 3/26/25, 11:47 PM

    I haven’t tried a course yet but Ivan, the creator, is great. IIRC codesandbox also uses firecracker and has a few blogposts on its setup
  • by sepositus on 3/27/25, 1:36 AM

    Cool platform. Really keen on seeing the Dagger course finished.
  • by bzmrgonz on 3/28/25, 10:11 PM

    so you are using firecracker strictly as a featherweight virtualized environment and to save money in cloud bloat-charges yes?
  • by tekichan on 3/29/25, 6:57 PM

    This is great
  • by la64710 on 3/27/25, 9:08 PM

    Very cool