OpenStack 2013.2 ("Havana") is released

Among the tons of new features, Havana has native support for Docker containers (as a Nova driver). This means at least three big things:

- when testing OpenStack workloads, you can spin up containers instead of VMs, and boot environments in seconds (much faster than with VMs, especially if you don't have a badass machine and must spin up tiny VMs); - if you're doing HPC, you can run on OpenStack without being afraid of losing any performance, since containers have much lower overhead than VMs (the overhead can be reduced to exactly zero with proper configuration).

Now I can't wait to see Docker containers as a resource in Heat :-)