Could you expand on why "database servers... should never be dockerized"? You mention that database servers should have access to all of the resources of the se

Could you expand on why "database servers... should never be dockerized"? You mention that database servers should have access to all of the resources of the server, but Docker doesn't prevent that. What other reasons would you give someone when they are considering Docker vs Ansible/Chef/Puppet to deploy a database server or cluster?