Resize vm guest disk space

virt-resize-guest-disk.sh

# http://libguestfs.org/virt-resize.1.html

virt-filesystems --long --parts --blkdevs -h -a /home/libvirt-images/cloud-01_default.img

# Name       Type       MBR  Size  Parent
# /dev/sda1  partition  83   40G   /dev/sda
# /dev/sda   device     -    40G   -

# truncate -s 128G cloud-01_default-resized.img
qemu-img create -f qcow2 -o preallocation=metadata cloud-01_default-resized.img 128G

virt-resize --expand /dev/sda1 cloud-01_default.img cloud-01_default-resized.img

virsh edit cloud-01_default

# <devices>
#   <emulator>/usr/bin/kvm-spice</emulator>
#   <disk type='file' device='disk'>
#     <driver name='qemu' type='qcow2'/>
#     <source file='/home/libvirt-images/cloud-01_default-resized.img'/>

virsh start cloud-01_default