4.10. Using bootc-image-builder to build ISO images with a Kickstart file

Procedure

1. Create your Kickstart file. The following Kickstart file is an example of a fully unattended Kickstart file configuration that contains user creation, and partition instructions.

   [customizations.installer.kickstart]
   contents = """
   lang en_GB.UTF-8
   keyboard uk
   timezone CET
   
   user --name <user> --password <password> --plaintext --groups <groups>
   sshkey --username <user> ssh-<type> <public key>
   rootpw --lock
   
   zerombr
   clearpart --all --initlabel
   autopart --type=plain
   reboot --eject
   """

2. Save the Kickstart configuration in the toml format to inject the Kickstart content. For example, config.toml.

3. Run bootc-image-builder, and include the Kickstart file configuration that you want to add to the ISO build. The bootc-image-builder automatically adds the ostreecontainer command that installs the container image.

   $ sudo podman run \
       --rm \
       -it \
       --privileged \
       --pull=newer \
       --security-opt label=type:unconfined_t \
       -v /var/lib/containers/storage:/var/lib/containers/storage \
       -v ./config.toml:/config.toml \
       -v ./output:/output \
       registry.redhat.io/rhel10/bootc-image-builder:latest \
       --type iso \
       --config /config.toml \
     quay.io/<namespace>/<image>:<tag>

   You can find the .iso image in the output folder.