Create and manage snapshots

Last changed: 2019-10-21

You can create a snapshot and use it as the base for your new instances.

Create a snapshot

Note

Make sure that the instance is turned off, before creating a snapshot.

In the dashboard, select Instances in the Compute tab:

Dashboard - Compute -> Instances

Click on Create Snapshot, and the following window appears:

Dashboard - Create Snapshot

Fill in the Snapshot Name and click on Create Snapshot. The snapshot will be created and located under Images in the Compute tab:

Dashboard - Snapshot Name

Once the snapshot is created, you can start up a new instance using this image.

Dashboard - Snapshot Created

Launch a snapshot

Select Images in the Compute tab:

Dashboard - Launch Snapshot

Choose the snapshot, and click on Launch, and further steps are described under create virtual machine.

The new instance contains now the expected customizations made earlier in your previous instance.

Doing the same with CLI

Listing any existing servers:

$ openstack server list
+--------------------------------------+--------------+--------+---------------------------------------+-----------------------+
| ID                                   | Name         | Status | Networks                              | Image Name            |
+--------------------------------------+--------------+--------+---------------------------------------+-----------------------+
| d281daef-e6b2-4dc5-979b-9c4fcec19b82 | DemoInstance | SHUTOFF| IPv6=2000:200:2:2000::200a, 10.2.0.02 | GOLD Ubuntu 16.04 LTS |
+--------------------------------------+--------------+--------+---------------------------------------+-----------------------+

Creating snapshot of an existing server:

$ openstack server image create --name DemoInstanceSnapshot DemoInstance
+------------------+-----------------------------------------------------------------------------------------------------------------------+
| Field            | Value                                                                                                                 |
+------------------+-----------------------------------------------------------------------------------------------------------------------+
| checksum         | None                                                                                                                  |
| container_format | None                                                                                                                  |
| created_at       | 2017-12-20T10:00:23Z                                                                                                  |
| disk_format      | None                                                                                                                  |
| file             | /v2/images/f7495bf2-23c3-4b07-b0c4-6da26a0e6b81/file                                                                  |
| id               | f7495bf2-23c3-4b07-b0c4-6da26a0e6b81                                                                                  |
| min_disk         | 10                                                                                                                    |
| min_ram          | 768                                                                                                                   |
| name             | DemoInstanceSnapshot                                                                                                  |
| owner            | 1b123d89493123e7937123d91e912304                                                                                      |
| properties       | base_image_ref='de540652-bb5f-4827-8abc-6a17cfc37790', hw_disk_bus='scsi', hw_scsi_model='virtio-scsi',               |
|                  | image_type='snapshot', instance_uuid='d281daef-e6b2-4dc5-979b-9c4fcec19b82', locations='[]',                          |
|                  | user_id='57c5e7b739614845811d123227a6d596'                                                                            |
| protected        | False                                                                                                                 |
| schema           | /v2/schemas/image                                                                                                     |
| size             | None                                                                                                                  |
| status           | queued                                                                                                                |
| tags             |                                                                                                                       |
| updated_at       | 2017-12-20T10:00:23Z                                                                                                  |
| virtual_size     | None                                                                                                                  |
| visibility       | private                                                                                                               |
+------------------+-----------------------------------------------------------------------------------------------------------------------+

Listing available images:

$ openstack image list
+--------------------------------------+-----------------------------------+-------------+
| ID                                   | Name                              | Status      |
+--------------------------------------+-----------------------------------+-------------+
| 20cc80f4-1567-4082-ac6f-68c9ae2040ff | myInstanceSnapshot                | active      |
+--------------------------------------+-----------------------------------+-------------+