Get running KVM guests for Mackerel

kvm_guest_state_metrics.sh

#!/bin/bash

DATE=$(date +%s)

echo -e "kvm.guest.state.running\t$(virsh list --uuid | sed '/^$/d' | wc -l)\t${DATE}"
echo -e "kvm.guest.state.inactive\t$(virsh list --inactive --uuid | sed '/^$/d'| wc -l)\t${DATE}"

mackerel-agent.conf

# Please append this lines to your config file.
[plugin.metrics.kvm_guest_state]
command = "/usr/local/bin/kvm_guest_state_metrics.sh"
type = "metric"