land

^{^{(5 hours and 165 loc to get the mvp!)}}

docker image -> firecracker vm!

If you need this in a less-janky form, consider using peckish to convert Docker images, tarballs, and more to ext4 images.

go

# build the vm
./land <docker image[:tag]>
# create your config file
./configure_vm.py # or just copy + edit vm_config.example.json
# launch the vm!
./boot [my_vm_config.json] # ./vm_config.json is the default
# TODO: networkng goes here

deps

• golang ;-;
  • required for building tar2ext4
• git
  • hopefully obvious, but it's for submodules
• jq
  • used for parsing docker manifests
• e2fsprogs
  • used for building the final rootfs image
• firecracker
  • run the vm! :D

how does it work?

• extract layers + metadata from docker
• rebuild layers into one rootfs
• convert the rootfs tarball into an ext4 disk image
• mount the rootfs image as the vm rootfs
• :tada: