Builds a CentOS 7-based (amd64) image with Vagrant and related dependencies preinstalled. Comes in handy as a base image in CI environments — especially Docker-native CI's like CircleCI, Drone, Concourse, etc. — in order to validate e.g., whether a given Vagrant configuration succeeds in provisioning a Vagrant box. Also works great for quickly testing Ansible playbooks in an sandboxed environment.
Partially adapted from Patrick Double's excellent post on the Object Partners Blog in August 2017.