Images Overview

Workload Manager includes a data structure called the logical image which is used for abstracting the physical VM image which resides in the target VM-based cloud. Workload Manager comes with several OOB logical images corresponding to various Linux and Windows releases and versions of MS SQL on Windows. In addition, users with the WM_ADMIN or WM_IMAGE_MANAGER role can create their own custom logical images corresponding to a base OS with other software installed. 

All VM-based services in Workload Manager require a logical image as their starting point. When a VM-based service is deployed to a cloud region, as part of the deployment process, the logical image for each VM-based tier is translated to a corresponding physical VM image in that cloud region. This requires that the logical image be "mapped" to the corresponding physical image in the cloud region before deploy time. Workload Manager handles logical to physical image mapping as follows:

  • All Workload Manager OOB logical images are automatically mapped to the corresponding physical cloud images for each supported public cloud region that you add to a cloud.

  • For private VM-based clouds, you must manually map the OOB logical images to physical images that you import into the private cloud.

  • For custom logical images added to your tenant, regardless of whether the physical image resides in a public or private cloud, you must manually map the custom logical image to the physical images. For public clouds, the physical image could be one you imported yourself or one that was shared with your account from someone else. For private clouds the physical image is always imported.

Since all VM-based Services are based on a logical images. If a service's logical image is not properly mapped to the correct physical cloud image for a particular cloud region, that service will not be available for deployment in that cloud region.

A pre-bootstrapped physical image must be associated with a logical image before it can be used in a deployment.

Adding, editing and deleting logical images, and adding, editing and deleting image mappings, can be performed through the Images Page.

Adding, editing and deleting image mappings, can also be performed from the Image Settings section of the Regions tab.

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