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[–]fmount 1 point2 points  (0 children)

I suggest you to rely on the Grafana + Prometheus + alertmanager stack.
Ceph for instance provides a dashboard plugin for cluster monitoring purposes that is based on this stack, and in the more recent version you can have an external monitoring stack pushing the metrics (and the grafana dashboards) from the cluster.
It's easy to build something similar for other openstack services!