4.9. Creating ISO images by using bootc-image-builder

Procedure

1. Optional: Create a config.toml to which overrides the default embedded Kickstart which performs an automatic installation.

   [customizations.installer.kickstart]
   contents = """
   text --non-interactive
   zerombr
   clearpart --all --initlabel --disklabel=gpt
   autopart --noswap --type=lvm
   network --bootproto=dhcp --device=link --activate --onboot=on
   """

2. Run bootc-image-builder to create a public ISO image. If you do not want to add any configuration, omit the -v ./config.toml:/config.toml argument. The image must be accessible from a registry, such as registry.redhat.io/rhel10/bootc-image-builder:latest.

   $ sudo podman run \
       --rm \
       --privileged \
       --pull=newer \
       --security-opt label=type:unconfined_t \
       -v /var/lib/containers/storage:/var/lib/containers/storage \
       -v ./config.toml:/config.toml:ro \
       -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.