Container startup CoreOS is holding its own conference in San Francisco today. That sounds expensive, but the company raised $20 million a couple of years ago — and, it turns out, another $28 million in a Series B announced today.

Hopefully, this means the coffee at CoreOS Fest will be extra good.

Linux containers have been a magnet for eyebrow-raising amounts of funding. Docker Inc., the company that ignited the current craze, picked up a $95 million Series D a year ago, just six months after a $40 million Series C.

CoreOS's Series B, announced today, was led by GV (formerly known as Google Ventures) and also included Intel Capital, Accel, Fuel Capital, KPCB, and the Y Combinator Continuity Fund.

Its $20 million Series A was raised in two stages, the latter being a $12 million tranche, also led by GV.

The startup's main commercial project is Tectonic, a container orchestration platform based on the open source Kubernetes project. It also offers rkt, a container runtime that's an alternative to Docker.

But all that work is really being done in the name of creating a more secure Internet, CEO Alex Polvi has said. That effort hinges on creating "Google-like infrastructure for everybody else" — a concept CoreOS summarizes with the acronyn Gifee.

The happenings at CoreOS Fest include Intel showing off Stackanetes, the recently announced joint effort to put OpenStack into containers.