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27 lines
993 B
ReStructuredText
27 lines
993 B
ReStructuredText
Import/Export of VM Snapshots
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=============================
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Create a snapshot of a running server
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-------------------------------------
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Create a new image by taking a snapshot of a running server and download the
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image.
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::
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nova image-create instance_name image_name
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glance image-download image_name --file exported_vm.qcow2
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Import an image into Overcloud and launch an instance
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-----------------------------------------------------
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Upload the exported image into glance in Overcloud and launch a new instance.
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::
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glance image-create --name imported_image --file exported_vm.qcow2 --disk-format qcow2 --container-format bare
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nova boot --poll --key-name default --flavor m1.demo --image imported_image --nic net-id=net_id imported
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.. note::
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**Warning**: disadvantage of using glance image for export/import VMs is
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that each VM disk has to be copied in and out into glance in source and
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target clouds. Also by making snapshot qcow layering system is lost.
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