monitoring: cadvisor panels don't work at all in docker-compose/pure-docker

Created by: bobheadxi

in docker-compose, container names are CONTAINER, but the regex matches for _CONTAINER_ because of Kubernetes pods having loads of containers that would report different names (back when it worked anyway). So that means these dashboards don't work at all in all docker-compose/pure-docker environments! oh no. I think this might necessitate a broader rethink of how to tackle naming in cadvisor.

confirmed in managed instances: