That they are ultimately complementary. Something still needs to manage what docker images run on a physical node and manage the contents of the Docker image. O

That they are ultimately complementary. Something still needs to manage what docker images run on a physical node and manage the contents of the Docker image. On the latter point, the Dockerfile is just a glorified shell script. Puppet/Chef have proven that declarative descriptions of systems is the way to go for a number of reasons and a return to imperative management of machines is a step backward. That all said Docker is fantastic. Definitely a step in the right direction (your deployable artefact is the container) but we need the dust to settle before the workflows that really work appear.