| title | updated |
|---|---|
Managing snapshots of an instance in Horizon |
2024-09-04 |
During your activity, you will probably need to back up your data, configurations and even your entire instances. To do this, you can create snapshots of your instances. These can be used to restore a later configuration on your instance, or to create an exact copy of an instance.
This guide explains how to manage snapshots from the OpenStack Horizon interface.
Log into the Horizon interface, and ensure that you are in the correct region. You can verify this on the top left corner.
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Next, click on the Compute{.action} menu on the left side and select Instances{.action}. Select Create Snapshot{.action} next to the corresponding instance.
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In the pop-up window, enter the required information:
Snapshot Name: Set a name for the snapshot and click on Create Snapshot{.action}.
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The snapshot will then be listed in the Images{.action} section. For this reason, we recommend naming each snapshot explicitly.
You can restore a snapshot by creating a new instance from it.
In the horizon interface, click on the Compute{.action} menu on the left side, then click on Images{.action}.
Click on Launch{.action} next to the selected snapshot.
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In the pop-up window, a number of options need to be selected to complete the restoration of the snapshot.
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Instance Name: Specify the name you want for the instance.
Count: Select the amount of instances you want to launch from the snapshot.
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Flavor
Select the flavor you want. Make sure you select a flavor whose resources are equal to or greater than the size of the image (snapshot).
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Network
Select a public network (Ext-Net) to attach to the instance.
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Keypair
Select (3), create (1) or import (2) a key pair.
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Once done, click on Launch Instance{.action} to begin the creation of your instance.
In the horizon interface, click on the Compute{.action} menu on the left side, then click on Images{.action}.
Next, click the drop-down arrow next to the snapshot you want to delete and click on Delete Image{.action}. Confirm the deletion of the snapshot.
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