Chapter 8. Creating a network installer image by using RHEL image builder

Procedure

1. Create a blueprint file in the TOML (Tom’s Obvious, Minimal Language) format, and define the blueprint name, description, and any required customizations:

   name = "network-installer-example"
   description = "A customized RHEL 10 network installer"
   version = "0.0.1"

2. Save the file, for example, as <blueprint_name>.toml, and close the text editor.

3. Start the image build process, specifying network-installer as the image type:

   # image-builder build --distro rhel-10.2 network-installer --blueprint network-installer-example

   The compose process takes some minutes to complete. After the image-building process finishes, the image is available for your use in the directory where you created it.

Procedure

1. On the host, log in to the RHEL web console.

   https://localhost:9090

2. Log in to the web console as the root user, and in the navigation menu, select Image builder.
3. Click Create blueprint.

4. On the Image output page, perform the following actions:

   1. Select the architecture.
   2. Select the network-installer image type.
   3. Click Next.
5. Optional: On the Details page, enter a name for the blueprint. The default naming is a timestamp of the blueprint creation. Click Next.

6. On the Review page, review the details and click Create blueprint and build image.

   The image generation process starts. When the image creation finishes, you can interact with the image in the following ways:

   • Create a VM.
   • Download the image file to your local machine or deploy it directly to your target environment.
   • Check the image artifact files in the web console browser.

Verification

1. Click Create VM.

   You are redirected to the Create new virtual machine wizard with prepopulated details for the VM creation.

2. Click Create and run.

   The web console starts a VM with the bootable image that you created.

3. Log in to the VM with the credentials that you created in the blueprint.

4. Verify the bootc status on the booted system:

   $ sudo bootc status