Custom images are created from instances or snapshots or imported from your computer. Custom images can contain applications and data. You can use custom images to create instances that have identical configurations. This eliminates the need to make repeated configurations.

Use a custom image

After you create or import a custom image, the image is in the Available state. You can use the image to create instances, share the image to other Alibaba Cloud accounts, copy the image to other regions, or export the image to an Object Storage Service (OSS) bucket. You can also delete the image when it is no longer needed.

Note Only the creator of a custom image can use, share, copy, and delete the image.
The following figure shows how to use a custom image. image-lifecycle

Operations

The following table lists operations that you can perform on custom images.
Operation Description References
Create an image You can create a custom image from an instance or from a snapshot to copy the system environment in a quick manner. This eliminates the need to make repeated configurations. You can also use the custom image tool Packer to create a custom image.
Import an image You can import a custom image from your computer. Image import procedure
Update an image Operation Orchestration Service (OOS) provides public templates to automatically update images. To update a custom image, you need only to create a random or scheduled O&M task by selecting a source image and specifying required parameters (such as the Cloud Assistant command) in a public template. Then, the O&M task is automatically executed as defined in the template to update the image. Update a custom image
Copy an image

If you want to use a custom image within another region, copy the image to that region. The image copy is assigned a unique ID. It is independent of the original image.

Copy custom images
Share an image You can share a custom image that you created to other Alibaba Cloud accounts. The Alibaba Cloud accounts can create instances from the shared image. Share a custom image
Export a custom image You can export a custom image that you created to an OSS bucket and then download the image to your computer. Export a custom image
Modify image information You can modify the name and description of a custom image. Modify custom images
Delete an image You can delete a custom image that you no longer need. Delete a custom image