It all depends on the use case. You may have the luxury of building all your containers from a single OS distro - but others might use containers to automate th

It all depends on the use case. You may have the luxury of building all your containers from a single OS distro - but others might use containers to automate the testing of the same build across a large matrix of distros and application versions. In that case using Chef would allow them to keep the variation between Dockerfiles minimal. Another example is using Chef to maintain your Docker deployment and the distributed system supporting it, then using Docker to deploy your application payload.