Hi all, docker 0.2.1 is out. You can get it at http://get.docker.io/builds/Linux/x86_64/docker-latest.tgz This version introduces a really cool feature: default run config. When committing a new layer, you can now set default values for most arguments to ‘docker run’: which command to run, ports to allocate, environment variables, tty/no tty, etc. In other words, default run config lets you decide what happens when someone runs your layer with no arguments – making your layers truly self-describing. For example, ‘docker run shykes/couchdb’ will run a full-featured couchdb daemon, with port 5984 properly allocated. Of course, you can override all these parameters with the usual ‘docker run’ syntax.