[FEATURE] Disk usage statistics

[tinkoff]

[FEATURE] Disk usage statistics

[AlexZzz]

Unfortunately, it's not possible. If you're talking about disk usage as df command output, then it is not a disk usage. It is a filesystem usage, and it's not visible from the outside of a vm.
We're able to add any metric of what you see in virsh command output.

[gorSign]

Yes I see.
Is it somehow possible with usage of virt-df command? It shows df output for vms

[AlexZzz]

Yep, it works, but it uses libguestfs. I don't know how it actually works, but at first glance it looks like read-only mount a filesystem from a virtual machine disk.

Add such functionality to libvirt-exporter means make it dependent on different tools with different context while still focus on libvirt instances and libvirtd daemon. It also overlaps responsibility zones. What I mean: libvirt-exporter works with libvirt and doesn't care what is going on inside the machines, it's not his job. For me it looks like a job for another tool, actually I don't think virt-df is a good thing for production:)

If you are responsible for the operating system inside a virtual machine, then why don't you use node-exporter? If you want dashboards to be integrated with libvirt information (which is a really good way to work with dashboards!), then you can join on libvirt_domain_info_meta by (instance_name). Need some label replacing, but it is a good way:) Is this your case?

If you're not responsible for the VMs itself, then you don't care about filesystem usage.