Monitoring
Maybe it would be nice to know the big picture health of the server in a Grafana dashboard?
It would for example aid on which time of the day should we schedule downtimes on, see #12 (comment 425777038)
It looks like the only available resource is https://github.com/genofire/ejabberd-influxdb which links with InfluxData's Telegraf. It also looks simple enough to reimplement in other ways.