[tor-bugs] #29816 [Internal Services/Tor Sysadmin Team]: replace "Tor VM hosts" spreadsheet with Grafana dashboard

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#29816: replace "Tor VM hosts" spreadsheet with Grafana dashboard
-------------------------------------------------+-------------------------
 Reporter:  anarcat                              |          Owner:  anarcat
     Type:  task                                 |         Status:
                                                 |  assigned
 Priority:  Medium                               |      Milestone:
Component:  Internal Services/Tor Sysadmin Team  |        Version:
 Severity:  Minor                                |     Resolution:
 Keywords:                                       |  Actual Points:
Parent ID:  #30273                               |         Points:
 Reviewer:                                       |        Sponsor:
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Comment (by anarcat):

 I have added moly to the spreadsheet. Memory and CPU allocations were
 extracted from libvirt with:

 {{{
 grep -e memory -e vcpu /etc/libvirt/qemu/*.xml
 }}}

 Because moly used LVM to allocate disks, I could also get the allocations
 with `lvdisplay -C`.

 The following was used to extract information from VMs in hetzner cloud:

 {{{
 cumin -o txt 'hetzner*' 'facter | grep -e processorcount -e memorysize -e
 "blockdevice_[^_]*_size"'
 }}}

 the spreadsheet should now cover all hosting locations with costs attached
 to them. i'd like to also have an inventory of all bare metal, but that
 will have to do for now.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/29816#comment:7>
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