Why does OpenStack matter? When I talk with cloud app developers I regularly hear that it doesn't. The cloud conversations center on AWS, Google, Azure, or a platform as a service like Heroku or one based on Docker.
Yet, if you look at current trends you'd see something like:
Or, if you follow the OpenStack community you might see that the US Summit, which happens once per year, went from about 1,800 attendees a year ago to about 4,500 attendees this past May. That's quite a bit of growth year over year.
I don't consider these reasons that OpenStack matters. Rather it matters and these are signs it's worth looking a little deeper into.