Last Thursday night, we held the first-ever Docker meetup in Brno. Approximately 100 people gathered to hear speakers from four different organizations on container technology and its use. The space, video recordings (links coming soon) and catering were provided through support from Red Hat’s Open Source and Standards Team, Impact Hub, Good Data, and Seznam.cz.
Project News
Announcing the Nulecule Specification for Composite Applications
UPDATE: Nulecule and Atomic App are discontinued.
Those of us in Project Atomic have been creating a platform-neutral specification, called Nulecule (noo-le-kyul), to help developers and admins build and launch composite, multi-container applications. You’ll find an excellent description of the problem and our solution at the RHEL Blog.
We’ve also created Atomic App as a way to run these applications using the Nulecule spec. If you just want to dive in and do stuff, just follow those links and go crazy. Read on for more.
The Problem with Containers
Our own Daniel Riek wrote a great blog post about CoreOS’s current efforts around the appc specification, rkt, and the significant work that remains.
This is where it gets interesting:
Hey Container Community, Let's Talk about Labels
We have added a new tool called atomic which I announced last week.
The Atomic tool currently takes advantage of the Label patch in docker that allows developers shipping applications as container images, to add arbitrary labels to the images json data. We chose to use some top level names for identifiers. Right now, Labels support free-form text without any restrictions. This is good in that it’s flexible, but bad in that we want containers to be portable and tools like Atomic that make use of the Label should co-exist with other tools that may also use the Label.
My Letter Home from Container Camp
Just over a week ago, I headed to the outskirts of San Francisco’s Financial District to attend Container Camp, a one-day, single-track conference focused primarily on the Docker ecosystem.
The Container Camp lineup included a nice mix of project talks and real user stories that left me looking forward to attending the next time the crew comes to town, and thinking back on the key issues raised during the event.