Import/Export of VM Snapshots

Import/Export of VM Snapshots

Create a snapshot of a running server

Create a new image by taking a snapshot of a running server and download the image.

nova image-create instance_name image_name
glance image-download image_name --file exported_vm.qcow2

Import an image into Overcloud and launch an instance

Upload the exported image into glance in Overcloud and launch a new instance.

glance image-create --name imported_image --file exported_vm.qcow2 --disk-format qcow2 --container-format bare
nova boot --poll --key-name default --flavor m1.demo --image imported_image --nic net-id=net_id imported

Note

Warning: disadvantage of using glance image for export/import VMs is that each VM disk has to be copied in and out into glance in source and target clouds. Also by making snapshot qcow layering system is lost.

Creative Commons Attribution 3.0 License

Except where otherwise noted, this document is licensed under Creative Commons Attribution 3.0 License. See all OpenStack Legal Documents.