HashiCorp offers a bunch of tools for doing DevOps, design with
interop in mind - forming somewhat of an ecosystem. Most of the tooling
is provided in a SaaS format via HashiCorp Cloud Platform, HCP for
short.
vagrant - vm tooling, imagine wrappers
around virtualbox or qemu - or docker with vms.
consul - service discovery,
communication encryption, networking automation, ingress/egress
centralization, distributed kv storage - alternative to stuff included
in k8s.