Hi Kolla devs So with the Heka work services write their logs into files (in the "kolla_logs" volume). This means that we need log rotation. This was mentioned in the "logging-with-heka" spec [*]. I've just created a change request [**] that adds a "cron" Dockerfile and Ansible tasks/plays to deploy a "cron" container on every node. I've opened this mainly as a base for discussion. So the "cron" container runs the crond daemon, which runs logrotate daily for rotating the log files of kolla services. In the future the "cron" container could be used for other cron-type tasks. Thoughts? Feedback? Thanks. [*] <https://github.com/openstack/kolla/blob/master/specs/logging-with-heka.rst#log-rotation> [**] <https://review.openstack.org/#/c/288432/>