The feature was part of the old role but unconditionally. When porting
to external role we made it optional with variable
`docker_cron_image_prune` but default to false. Restore the previous
behaviour in this playbook.
Unsure why this differs from the previous value, but this is the
organization name actually used by the running database. Output from
the container:
2023-01-11T19:22:41Z E! [outputs.influxdb_v2] Failed to write metric to system_metrics (will be dropped: 404 Not Found): not found: organization name "Netz39" not found
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.
