The part that was doing no rev was Docker Enterprise. This was sold off to Mirantis [0]. This was a good thing for both Mirantis and Docker. The Mirantis brass knew the enterprise much better than the ignorant leadership that was running the ship prior to the acquisition. I happened to be there at the time. Folks like Steve Singh (former CEO), Roger Egan (SVP Sales) and Betty Junod (VP Product & Product Marketing) were all ignorant to what could have been a very successful run with Docker Enterprise. They were literally trying to hock everything customers already had and didn't want from Docker. What customers kept asking for was what Docker is doing today. While they've had a number of missteps the current leadership clearly understands their target market and... Listens. Steve, Roger and Betty? They always knew better and didn't listen to their own people. It was bizzaro-land where Betty's quest to define personas was the answer to all of Docker's woes. Looking back the entire thing felt like a season of Silicon Valley.
But yeah, if you think Docker doesn't have any runway these days you haven't followed much of them over the last few years.
[0] https://www.zdnet.com/article/mirantis-acquires-docker-enter...