The Docker Engine Layer
The tests mapped to this layer reports the current state of the docker service, the utilization of data and metadata space of the docker, events triggered on the containers of the docker server, image available in the docker, the statistics revealing the number of images mapped to containers and those that are not mapped, individual resource utilization of the containers that are created based on each image etc. Refer Unix and Windows Servers document for Processes test details.
Figure 1 : The tests mapped to the Docker Engine layer