Create new image from snapshot
Import snapshot to project
Run
openstack image create --container-format bare --disk-format qcow2 --file <path-to-image-file> <name>
Example
$ openstack image create --container-format bare --disk-format qcow2 --file snapshot.raw test-snapshot
Booting From Image
Create a VM and selecting the image as the boot source
Example
Find the image ID
$ openstack image list
+--------------------------------------+----------------------------------------------------------+-------------+
| ID | Name | Status |
+--------------------------------------+----------------------------------------------------------+-------------+
| 2b9c6711-4dd8-4e5c-9edc-dd106b8319b5 | test-snapshot | active |
+--------------------------------------+----------------------------------------------------------+-------------+
Create the VM
Import snapshot to project
Run
Example
Booting From Image
Create a VM and selecting the image as the boot source
Example
Find the image ID
Create the VM