Perhaps you should give the article at least a cursory glance, as this question is addressed in the opening paragraph.
"I suspect that our voracious appetite for the daily routines of cultural icons is fueled by a deep yearning to glean some insight on and practical help with this impossible balancing act, from people who seem to have mastered it well enough to lead happy, productive, creatively fruitful, and altogether remarkable lives."
It is a minimal linux install intended for non-native hosts to run Docker containers, say on a Mac or in a VMware cluster. You could use it for production workloads, certainly, but it doesn't provide any of the management tools that CoreOS provides.
I'm curious about this as well – for the most part you usually hear about people having moved to the other way, from Chef to Ansible (personally, still using both).
Ansible also (currently) seems a bit more suited for the Docker workflow, so I'd be interested to hear about the developer's experiences with this.
"I suspect that our voracious appetite for the daily routines of cultural icons is fueled by a deep yearning to glean some insight on and practical help with this impossible balancing act, from people who seem to have mastered it well enough to lead happy, productive, creatively fruitful, and altogether remarkable lives."