the container itself at the /var/lib/kolla/config_files/config.json
location and drives how kolla's external config mechanisms work.
- * docker_image: The full name of the docker image that will be used.
-
* docker_config: Data that is passed to the docker-cmd hook to configure
a container, or step of containers at each step. See the available steps
below and the related docker-cmd hook documentation in the heat-agents