Add hack/update-template-ubuntu.sh

[norio-nomura]

$ hack/update-ubuntu-image.sh --help
update-ubuntu-image.sh: Update the Ubuntu image location in the specified templates

Usage:
  update-ubuntu-image.sh [--minimal|--server] [--version <version>] <template.yaml>...

Description:
  This script updates the Ubuntu image location in the specified templates.
  If the image location in the template contains a release date in the URL, the script replaces it with the latest available date.
  If no flags are specified, the script uses the flavor and version from the image location basename in the template.

  Image location basename format: ubuntu-<version>-<flavor>-cloudimg-<arch>.img

  Released Ubuntu image information is fetched from the following URLs:

    Server: https://cloud-images.ubuntu.com/releases/stream/v1/com.ubuntu.cloud:released:download.json
    Minimal: https://cloud-images.ubuntu.com/minimal/releases/stream/v1/com.ubuntu.cloud:released:download.json

  The downloaded JSON file will be cached in the Lima cache directory.

Examples:
  Update the Ubuntu image location in templates/**.yaml:
  $ update-ubuntu-image.sh templates/**.yaml

  Update the Ubuntu image location in ~/.lima/ubuntu/lima.yaml:
  $ update-ubuntu-image.sh ~/.lima/ubuntu/lima.yaml

  Update the Ubuntu image location to ubuntu-24.04-minimal-cloudimg-<arch>.img in ~/.lima/docker/lima.yaml:
  $ update-ubuntu-image.sh --minimal --version 24.04 ~/.lima/docker/lima.yaml

Flags:
  --server             Use the server flavor image
  --minimal            Use the minimal flavor image
  --version <version>  Use the specified version
  -h, --help           Print this help message

[AkihiroSuda]

Could you squash the commits?

[norio-nomura]

squashed and rebased on master.

[AkihiroSuda]

Thanks

[AkihiroSuda]

CI failure is irrelevant:

• ArchLinux CI is failing since 2024-10-10 (due to the update of the cloud-init package) #2714

[norio-nomura]

Thanks! 🙏🏻