Richard Bucker

CoreOS Fleet vs Docker Swarm

Posted at — Feb 26, 2015

Frankly is there is very little difference between the two. One thing that stands out is the ability to connect to a container instance and ssh into it. Although I’d give ease of use to Docker Swarm; fleet and fleetctl are just as capable. I also like the two features that docker demonstrated. affinity and memory. But then Fleet has a solid config file that fits nicely with cloud-config. Docker’s robust CLI options are nice but not very pragmatic. If your goal is automation then config files are your friend. I’m sure that Docker has a swarm config file. (I’m tempted to do a search; but then it seems easy enough.)