(https://computingforgeeks.com/how-to-extend-increase-kvm-virtual-machine-disk-size/)
sudo virsh list
sudo virsh shutdown [NAME]
sudo virsh domblklist
sudo qemu-img resize [IMAGE-PATH-AND-EXTENSION] +10G
sudo virsh start
Check if your volume is using LVM or not. Inside guest VM run the following command:
lsblk
Then check if "vda" has LVM in column type or part
(https://computingforgeeks.com/resize-ext-and-xfs-root-partition-without-lvm/)
sudo apt install cloud-guest-utils
sudo growpart [DEVICE (/dev/vda)] [PARTITION-NUMBER (3)]
sudo resize2fs [DEVICE-PARTITION (/dev/vda1)]
(https://computingforgeeks.com/extending-root-filesystem-using-lvm-linux/)
Future todo.