5.6. bootc-image-builder を使用したイメージモードのディスクイメージへの高度なパーティション設定の追加

手順

1. 以下の内容で config.tom ファイルを作成します。

   1. ユーザーをイメージに追加します。

      [[customizations.user]]
      name = "user1"
      password = "user2"
      key = "ssh-rsa AAA ... user@email.com"
      groups = ["wheel"]
      
      # Set a size for the root partition:
      
      [[customizations.partitioning.plain.filesystems]]
      mountpoint = "/"
      type = "ext4"
      minsize = "3 GiB"
      
      # Add an extra data partition
      [[customizations.partitioning.plain.filesystems]]
      mountpoint = "/var/data"
      type = "xfs"
      minsize = "2 GiB"
      label = "data"
      
      
      # Add an app partition with a top-level mountpoint.
      # Requires derived container.
      [[customizations.partitioning.plain.filesystems]]
      mountpoint = "/app"
      type = "xfs"
      minsize = "1 GiB"
      label = "app"
      
      # Add the LVM configuration:
      # Define the LVM Volume Group name and size
      [[customizations.partitioning.lvm.volume_groups]]
      name = "centosvg"
      minsize = 10737418240  # 10 GiB
      
      
      # Add a data Logical Volume to the group
      [[customizations.partitioning.lvm.volume_groups.logical_volumes]]
      name = "datalv"
      mountpoint = "/var/data"
      label = "data"
      minsize = "1 GiB"
      type = "xfs"
      
      
      # The root Logical Volume is created automatically if not defined, but setting
      # it lets us set the name, label, and size explicitly
      [[customizations.partitioning.lvm.volume_groups.logical_volumes]]
      name = "rootlv"
      mountpoint = "/"
      label = "system"
      minsize = "2 GiB"
      type = "ext4"
      
      
      # Add an app Logical Volume with a top-level mountpoint.
      # Requires derived container.
      [[customizations.partitioning.lvm.volume_groups.logical_volumes]]
      mountpoint = "/app"
      type = "xfs"
      minsize = "1 GiB"
      label = "app"
      name = "applv"

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2. bootc-image-builder を実行します。必要に応じて、ユーザーアクセス設定を使用する場合は、config.toml を引数として渡します。以下は、パブリック QCOW2 イメージを作成する例です。

   sudo podman run \
       --rm \
       -it \
       --privileged \
       --pull=newer \
       --security-opt label=type:unconfined_t \
       -v ./config.toml:/config.toml:ro \
       -v ./output:/output \
        registry.redhat.io/rhel9/bootc-image-builder:latest \
       --type qcow2 \
       --config /config.toml \
     quay.io/<namespace>/<image>:<tag>

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検証

1. 作成された QCOW2 ファイルを仮想マシンで実行します。

   qemu-system-x86_64 \
        -enable-kvm \
        -cpu host \
        -m 8G \
        -bios /usr/share/edk2/ovmf/OVMF_CODE.fd \
        -snapshot \
        -drive file="${path}/output/qcow2/disk.qcow2"

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2. SSH で起動した仮想マシンのシステムにアクセスします。

   # ssh -i /<path_to_private_ssh-key> <user1>@<ip-address>

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