27 lines
997 B
ReStructuredText
27 lines
997 B
ReStructuredText
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.
|