Mapped ports only shown at the application level not under Docker Hosts/Containers

[johnmccabe]

Uncertain as to whether this is an issue, but observed the following.

Deploying a simple container app as follows:

location: my-docker-cloud
services:
- type: docker:nginx:latest
  name: nginx
  openPorts:
  - 80

Results in the VanillaDockerApplication having a populated mapped.docker.port.80 sensor.

The associated container under Docker Hosts/Docker Containers does not have a mapped port sensor.