Monitoring instance filesystem size

I’m tracking down containers which seem to hog disk and using the grafana dashboard from 2023-January.

The problem I have, is that the dashboard for the container only shows a “percentage” which is problematic with large disks. A few percent means lots of disk.

See below from my dashboard, the percentage is 23% but how much is that really?

I face myself having to need to add a panel to show the nominal disk usage, something like this:

Would it be possible to add nominal values for all mounted devices of the containers? “/”, “/tmp”, "/etc, “/foo”

This would allow an operator to quickly notice also if a disk is growing fast and take proper action. The percentage is good, but inadequate for tracking down disk-gangsters.

@sdeziel @marcus

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