Resizing an instance using OpenStack Horizon¶

To resize an instance using OpenStack Horizon, follow these steps:

Important

Resizing an instance will cause the instance to shut off during the process. We recommend doing a backup of your data before proceeding.

Under “project”, click “compute” and then “instances” in the sidebar menu.
In the drop-down menu to the far right of the line corresponding to the instance you want to resize, press “resize instance”.
Under “new flavor”, select the flavor you want.
Press “resize” button.
You will see the status of the resize in the following page.
When it says “Confirm or Revert Resize/Migrate”, login to the instance and verify that it worked as intended (meaning the instance is working as before but with the new flavor).
If you are happy with the result, press “Confirm Resize/Rigrate” in drop-down to the far right (it should be pre-selected). This will finalise the process and make it permanent.
If you are unhappy (for some reason the process failed), you are able to instead press “Revert resize/Migrate” (available in the drop-down). This will revert the process.

The process is now complete.