5.12. 오프라인 및 Air-gapped 환경에서 bootc 이미지 빌드

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1. 컨테이너 파일을 생성합니다. 예를 들면 다음과 같습니다.

   # Base image to point to your internal registry
   FROM example.com:1234/rhel10/rhel-bootc:10.2
   
   # Configure the local repo to use the files already present in the image
   # Assuming the repo data is located at /etc/pki/repos or similar inside the image
   RUN echo -e "[local-baseos]\n\
   name=Local RHEL 10 BaseOS\n\
   baseurl=file:///path/to/repo/in/image/BaseOS\n\
   enabled=1\n\
   gpgcheck=0" > /etc/yum.repos.d/local.repo
   
   # Install your required packages using the local file source
   RUN dnf install -y firewalld && \
      dnf clean all
   
   # Ensure the kernel and bootloader are present
   # In air-gapped bootc, BIB often fails because it expects to download these.
   # Pre-installing them ensures they are part of the 'bootc' transition.
   RUN dnf install -y kernel-bootc anaconda-dracut-modules && dnf clean all

2. bootc-image-builder 툴을 사용하여 Containerfile을 ISO, raw, QCOW2와 같은 부팅 가능한 형식으로 변환합니다. bootc-image-builder 를 사용하여 bootc 호환 기본 디스크 이미지 생성 을 참조하십시오.