Story goes like this: Joe and I did Google Compute Engine together. Once that was on rails we started looking at the gap between GAE and GCE. Joe found Docker way back before it was a household name, and we started thinking hard about the 'compute continuum'. What beyond the container format was needed. Brendan was working in the meantime on something that looked like cloud formation that we were also playing with. We had instantly good chemistry with the three of us, and he started looking at Docker too.

To raise awareness of Docker in Google, I asked Brendan to pull together a demo for our all hands. In a nutshell what he produced was the bones of Kubernetes. I remember looking at it and having a moment, he had built a mini borg cell on VMs. Basically made borg a devops accessible tool, not just a monolithic clustering tool (like Mesos was). When I saw that the product ramifications were obvious, I called Joe over to look and the rest is history.