fp.

I just want a system that's as easy as "docker run ubuntu" but launches as a microvm instead, without me having to source a kernel or remember hugenormously long qemu incantation lines.

liquid64•1h ago

The kernel/initrd come from a regular OCI container image — there's no separate VM image format. Any OCI image containing /boot/vmlinux (and optionally /boot/initramfs.cpio.gz) works as a kernel image.

spwa4•1h ago

And if they don't have a kernel? You just specify kernel + initrd?

yakimbo90•54m ago

you don't have to source one manually — pullrun kernel install fetches a kata containers kernel into ~/.pullrun/kernels/vmlinux-<version>. One-time setup, then the daemon auto-discovers it.

moondev•27m ago

If you run an ubuntu image with a kata kernel, do you have difficulty installing some packages? For example if you need linux-headers-$(uname -r) or linux-modules-extra-$(uname -r), it won't exist in canonical apt repos?

ktm5j•2m ago

Why on earth would a container image have a kernel and initrd?

thepoet•30m ago

We will be soon including this in Tarit, a firecracker alternative https://github.com/instavm/tarit

Currently we have to supply a kernel to run the OCI as a microVM with a warm pool.

  TARIT_KERNEL=/path/vmlinux

  taritd image build --oci ubuntu:24.04 --name ubuntu
  taritd vm create --image ubuntu

jtbaker•11m ago

I think `smolvm` may fit the bill? I've been using it to run pi.dev in a sandbox.

https://smolmachines.com/

vaylian•31m ago

Sweet. I had hoped for someone to make a p2p container registry eventually. There is too much centralization with the current popular registries.