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Chapter 20. Preparing and uploading customized QCOW2 images directly to OpenStack


You can create custom .qcow2 images with RHEL image builder and manually upload them to the OpenStack cloud deployments.

20.1. Uploading QCOW2 images to OpenStack

With the RHEL image builder tool, you can create customized .qcow2 images that are suitable for uploading to OpenStack cloud deployments and starting instances there. RHEL image builder creates images in the QCOW2 format, but with further changes specific to OpenStack.

Prerequisites

  • You have created a blueprint.

Procedure

  1. Start the compose of a QCOW2 image.

    # image-builder build qcow2 --blueprint blueprint_name
  2. Access the OpenStack dashboard and click +Create Image.
  3. On the left menu, select the Admin tab.
  4. From the System Panel, click Image.

    The Create An Image wizard opens.

  5. In the Create An Image wizard:

    1. Enter a name for the image
    2. Click Browse to upload the QCOW2 image.
    3. From the Format dropdown list, select the QCOW2 - QEMU Emulator.
    4. Click Create Image.
  6. On the left menu, select the Project tab.

    1. From the Compute menu, select Instances.
    2. Click the Launch Instance button.

      The Launch Instance wizard opens.

    3. On the Details page, enter a name for the instance. Click Next.
    4. On the Source page, select the name of the image you uploaded. Click Next.
    5. On the Flavor page, select the machine resources that best fit your needs. Click Launch.
  7. You can run the image instance using any mechanism such as the CLI or OpenStack web UI from the image. Use your private key by using SSH to access the resulting instance. Log in as cloud-user.
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