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

by fazkanon 3/26/2025, 8:08 PMwith 12 comments

by notesinthefieldon 3/27/2025, 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 nickandbroon 3/26/2025, 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 bittermandelon 3/27/2025, 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 suralindon 3/27/2025, 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 MortyWaveson 3/26/2025, 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 fideloperon 3/27/2025, 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 plondon514on 3/26/2025, 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 seposituson 3/27/2025, 1:36 AM

Cool platform. Really keen on seeing the Dagger course finished.

by bzmrgonzon 3/28/2025, 10:11 PM

so you are using firecracker strictly as a featherweight virtualized environment and to save money in cloud bloat-charges yes?

by tekichanon 3/29/2025, 6:57 PM

This is great

by la64710on 3/27/2025, 9:08 PM

Very cool