openstack/tripleo-docs
Code Issues Proposed changes
09e3ef837b
tripleo-docs/deploy-guide/source/post_deployment/vm_snapshot.rst
Alex Schultz c6918e5da6 Migrate install to deploy-guide 
The deployment guide is currently pointed at triplo-docs but it has been
requested that we actually publish a deployment guide. This change
extracts many of the installation doc pages and moves them into the
deploy-guide source tree.  Once the deploy-guide is published, we will
follow up to reference the deployment guide from tripleo-docs.

Change-Id: I0ebd26f014180a92c6cf4ab0929d99b2d860796f
2019-08-16 15:42:17 -06:00

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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.