There is quite some buzz around docker and no one can avoid to read about it. So I wanted to try it out. Since version 1.0 is now out some things got even smoother it seems.
Here is the short version of the commands:

1. Add the Virtualization repository

   zypper ar http://download.opensuse.org/repositories/Virtualization/openSUSE_13.1 docker
   zypper ref

2. Install docker

   zypper in docker

3. Start the docker service

   systemctl start docker

4. Then for example search for openSUSE based containers in the docker registry

   docker search opensuse

   This should provide the same list as using this web page:

   https://registry.hub.docker.com/

5. For now we are going to download and use Flavio Castelli’s 12.3 container by first pulling it

   docker pull flavio/opensuse-12-3

   Depending on your connection that may take some time or finish quite quickly with output looking like this:

   # docker pull flavio/opensuse-12-3
    Pulling repository flavio/opensuse-12-3
    7b4864b5c142: Download complete
    3ac0450b90b3: Download complete

6. If that worked well, you are ready to use that container. For example check what RPM’s are installed by simply issuing

    docker run flavio/opensuse-12-3 rpm -qa

Now you are ready to pull and use containers. If you want to build your own containers the following blog post by Flavio Castelli might be of interest to you:

http://flavio.castelli.name/2014/05/06/building-docker-containers-with-kiwi/