Comment 1 for bug 1957789

https://review.opendev.org/c/openstack/ironic-python-agent-builder/+/824136 testing it with depends on https://review.opendev.org/c/openstack/diskimage-builder/+/824659/ .

https://storage.gra.cloud.ovh.net/v1/AUTH_dcaab5e32b234d56b626f72581e3644c/zuul_opendev_logs_5ac/824136/4/check/ironic-python-agent-check-image-dib-centos9/5acb0ae/job-output.txt

```
 /tmp/dib_build.7u24NpPz/hooks/root.d/10-centos-cloud-image:main:64 : curl -s https://cloud.centos.org/centos/9-stream/x86_64/images/
2022-01-17 13:31:10.418596 | ubuntu-focal | 2022-01-17 13:31:10.418 | ++ /tmp/dib_build.7u24NpPz/hooks/root.d/10-centos-cloud-image:main:64 : grep -o 'CentOS-.[^>]*GenericCloud-.[^>]*.qcow2'
2022-01-17 13:31:10.419166 | ubuntu-focal | 2022-01-17 13:31:10.419 | ++ /tmp/dib_build.7u24NpPz/hooks/root.d/10-centos-cloud-image:main:64 : head -1
2022-01-17 13:31:10.419903 | ubuntu-focal | 2022-01-17 13:31:10.419 | ++ /tmp/dib_build.7u24NpPz/hooks/root.d/10-centos-cloud-image:main:64 : sort -r
2022-01-17 13:31:10.754951 | ubuntu-focal | 2022-01-17 13:31:10.754 | sort: fflush failed: 'standard output': Broken pipe
2022-01-17 13:31:10.755932 | ubuntu-focal | 2022-01-17 13:31:10.754 | sort: write error
2022-01-17 13:31:10.761402 | ubuntu-focal | 2022-01-17 13:31:10.761 | + /tmp/dib_build.7u24NpPz/hooks/root.d/10-centos-cloud-image:main:64 : BASE_IMAGE_FILE=CentOS-Stream-GenericCloud-9-20220113.0.x86_64.qcow2
```