Meet other developers and ops engineers using Docker. Docker is an open platform for developers and sysadmins to build, ship, and run distributed applications. Consisting of Docker Engine, a portable, lightweight runtime and packaging tool, and Docker Hub, a cloud service for sharing applications and automating workflows, Docker enables apps to be quickly assembled from components and eliminates the friction between development, QA, and production environments. As a result, IT can ship faster and run the same app, unchanged, on laptops, data center VMs, and any cloud.
But where to file it? Languages? No. Hardware? Nope. Applications? Maybe. I'll put it under Operating Systems since it's more SysAdmin-ish.
Atlanta OpenStack Meetup
OpenStack is an open cloud computing platform founded by Rackspace and backed by NASA, see openstack.org. It's to counter the proprietary cloud offerings of Amazon's AWS and Microsoft's Azure. Ok, so maybe this doesn't exactly go under the 'operating systems' menu item, but it's pretty close. From their meetup page:
This is the Atlanta OpenStack developer Meetup. We are a group of free software developers who are passionate about working together to help make the Openstack project a success!
Atlanta Unix Users' Group
Atlanta OpenSolaris Users' Group
The Atlanta OpenSolaris Users' Group has been around since Late 2005 (about as long as OpenSolaris!). It meets at the Sun offices off of Windward Parkway and Georgia 400. See their website:
They also have a facebook page
BTW, there's now an OpenSolaris group on LinkedIn. There were about 1,100 members last I saw.