第17章 Preparing and uploading VMDK custom images to vSphere


You can create custom images and update them, either manually or automatically, to the VMware vSphere cloud by using RHEL image builder.

17.1. Creating and automatically uploading customized RHEL VMDK images by using image builder

With RHEL image builder, you can create customized system images in the Open Virtualization Format (OVA), and automatically upload these images to the VMware vSphere client.

The OVA (.ova) is a .vmdk image with additional metadata about the virtual hardware, which contains a minimal template to make it easier to import images into vSphere. The .ovf (Open Virtualization Format) package is part of the vSphere .ova image. After RHEL image builder finishes importing the .ova image in the vSphere client, you can configure it with any additional hardware, such as network, disks, and CD-ROMs.

You can import the Open virtualization format (.ova) image by using either the vSphere GUI or the govc client. To upload the image by using the govc client, see Uploading VMDK images and creating a RHEL virtual machine in vSphere.

Prerequisites

  • You opened the RHEL image builder app from the web console in a browser.
  • You created a blueprint.

Procedure

  1. In the RHEL image builder dashboard, click the Blueprint tab.
  2. On the blueprint table, find the blueprint you want to build an image.
  3. On the right side of the chosen blueprint, click Create Image. The Create image dialog wizard opens.
  4. On the Image output page, complete the following steps:

    1. From the Select a blueprint list, select the image type you want.
    2. From the Image output type list, select the image output type you want.
    3. Optional: Check Upload to VMware checkbox to upload the image directly to VMware.
    4. Enter a size for the image.
    5. Click Next.
  5. On the Upload to VMware page, enter the following information:

    1. Image name: Enter the image name.
    2. Host: Enter the VMware vSphere instance URL where the image file will be uploaded.
    3. Cluster: Enter the cluster name page to which the image will be uploaded.
    4. Datacenter: The data center name to which the image will be uploaded.
    5. Datastore: The data store name to which the image will be uploaded.
    6. Folder: Folder name to which the image will be uploaded.
    7. Click Next.
  6. On the Review page, review the details about the image creation and click Create.

    The image creation starts, showing the progress of this image creation and the subsequent upload to the VMware vSphere client.

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