Have been working on my Grafana dashboard recently and am thinking about what else I could add. So far, I have:
- CPU usage and temperature
- Memory usage
- Network usage
- Backrest daily backup status
- SMART status of drives
- CPU and memory usage of containers
Anything else that you find useful? I have a few other ideas, but am curious what others have up. Is everything on one scrollable dashboard, or do you have it organized across multiple?
I’d add backup age and size, not just status, like alert if the newest dump is older than ~26h or smaller than 1MB, a job can say success and still leave you a useless file. and disk fill with a threshold, not only the graph. learned that one the hard way, a table on my vps was getting a row every minute with no cleanup and one day the disk hit 100% and postgres just died for like 40 min, obviously nobody was looking at the dashboard right then lol. now 80% warns and 90% sends me an email, and uptime kuma checks the cert expiry from outside. I guess the dashboard is nice to look at but the stuff that matters should ping you
Size is a great idea, thanks. The problem with backup age is that Backrest doesn’t expose a metric for when the backup was attempted, so right now it’s just checking for failure status daily. That, of course, fails if backrest doesn’t attempt a backup for whatever reason. Chances of that happening, I don’t know, but I’ll have to look into implementing the metric (or label, I suppose) myself.
What I do for that is turn it around, instead of checking for a failure I alert on the absence of a success. backrest has hooks, so on snapshot success it pings a push monitor in uptime kuma (healthchecks.io works the same), and if no ping arrives in ~26h it alerts. That way it catches the backup that never ran, which is the one that scares me the most I guess