How to use this box with Vagrant:
Vagrant.configure("2") do |config|
config.vm.box = "chaifeng/ubuntu-20.04-docker-19.03.11"
config.vm.box_version = "202005.21.0"
end
vagrant init chaifeng/ubuntu-20.04-docker-19.03.11 \
--box-version 202005.21.0
vagrant up
This version was created about 4 years ago.