Earthly is a build tool, it uses buildkitd to create reproducable and highly cacheable builds.
It is used by a new experimental nightly build to easily create storj-up images. (but can be used for any ad-hoc storj-up cluster to create the images).
To make the nightly more robust, I would prefer to commit the helper files (today I do a rebase every time, but sometimes it fails).
More detailed information about Earthly can be found at https://earthly.dev or https://www.youtube.com/watch?v=nChpMEdOaCQ
Change-Id: I683601e0558aca53b45ed3819c46c909534f8b15
