All our hosts running docker can put their metrics into our influxdb now. Note: not all docker hosts do this (yet), because the influxdb is currently only reachable from within the local space internal network in our rooms. Link: https://docs.ansible.com/ansible/latest/inventory_guide/intro_patterns.html Link: https://galaxy.ansible.com/lespocky/telegraf_docker_in_docker References: #760
To install docker on a host you have to put it into that group in inventory now, instead of adding the role to each host playbook. Idea is to extend the group docker_host playbook by more docker related things as for example metrics and monitoring.