virt-sparsify

Make virtual machine drive images thin-provisioned.

TLDR

Create a sparsified compressed image without snapshots from an unsparsified one

$ virt-sparsify --compress [path/to/image.qcow2] [path/to/image_new.qcow2]
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Sparsify an image in-place

$ virt-sparsify --in-place [path/to/image.img]
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