Managing Private Images
Private Image Lifecycle
After you create a private image, you can use it to create cloud servers or EVS disks. You can also share the image with other accounts or replicate it to other regions. Figure 1 shows the lifecycle of a private image.
Creating an ECS from a Private Image
After a system disk image or full-ECS image is created, in the image list, you can locate the image and click Apply for Server to create new ECSs.
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Modifying an Image
You can modify the following attributes of an image: name, description, minimum memory, maximum memory, and advanced features such as NIC multi-queue and SR-IOV driver.
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Sharing Images
You can share an image with other accounts. These accounts can use the shared image to quickly create cloud servers or EVS disks identical to your own.
Assume that user A wants to share an image with user B. The process is as follows:
To share the same image with D, A can add D as the tenant who can use the image.
When B has deployed services on the instances created from the shared image and does not need the image any longer, B can reject the shared image.
A can stop the sharing of an image with others.
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Exporting an Image
You can export private images to your OBS bucket and download them to your local PC for backup.
You can export images of cloud servers from the cloud platform and then use the exported images to create cloud servers for use in on-premises clusters or private clouds. The following figure shows the process of exporting an image.
The following images cannot be exported:
- Public images
- Full-ECS images
- ISO images
- Private images created from a Windows or SUSE public image
- Private images created from a KooGallery image
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Encrypting an Image
You can create encrypted images to improve data security. KMS envelope encryption is used. Encrypted images can be created from external image files or encrypted cloud servers.
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Replicating Images Within a Region
You can replicate an image within a region to make encrypted or unencrypted copies or enable some advanced features (such as fast server creation).
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Tagging Images
You can tag your private images for easier management and search.
A maximum of 10 tags can be added for a private image. You can add tags when you create an image or add them on the details page of the image you created.
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Exporting an Image List
You can export the public or private image list in a given region as a CSV file for local maintenance and query.
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Deleting Images
You can delete images that will be no longer used. Deleting an image does not affect the cloud servers or EVS disks created from that image.
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