https://www.theregister.co.uk/2019/11/22/kubecon_backup/

Kubecon 2019 If one were looking for an indicator that Kubernetes is maturing (other than the sheer numbers that turned out for Kubecon San Diego), it is the plethora of backup solutions emerging for the orchestration technology.

Attendance for the once-an-upstart tech's shindig hit 12,000 this year, overwhelming the San Diego Convention Center's facilities at times (notably after the Day One morning keynote). The December 2018 event had 8,000 eager beavers turn up in Seattle and, of course, the first conference in San Francisco back in 2015 had a mere 550 early adopters show up.