To be fair, its quite simple to do this. As part of your config, you would specify a reverse proxy service, and a couple of app aliases. Then you would bring u

To be fair, its quite simple to do this. As part of your config, you would specify a reverse proxy service, and a couple of app aliases. Then you would bring up the new deployment under one alias, and shut down the other. But yeah, its nice to have that kind of stuff (and much more) built in. docker-swarm also offers that out of the box, but my experience leans more towards k8s here.