Baremetal introspection (run during ocloud cluster preparation) is failing while attempting to download metal3 customization image, as in the logs below.
The BMH is created as

```
Name:         dell-server-randu2
Namespace:    dell-pool
Labels:       interfacelabel.clcm.openshift.io/data-interface=ens2f3.3934
              resources.clcm.openshift.io/resourcePoolId=dell-pool
              resources.clcm.openshift.io/siteId=local-west
              resourceselector.clcm.openshift.io/server-id=poweredge-xr11-randu2
              resourceselector.clcm.openshift.io/server-type=blade
Annotations:  bmac.agent-install.openshift.io/allow-provisioned-host-management: 
              resourceinfo.clcm.openshift.io/description: Dell server randu2
              resourceinfo.clcm.openshift.io/globalAssetId: super1-randu2
              resourceinfo.clcm.openshift.io/groups: groupA, groupB
              resourceinfo.clcm.openshift.io/partNumber: GJK05L3
API Version:  metal3.io/v1alpha1
Kind:         BareMetalHost
Metadata:
  Creation Timestamp:  2026-01-16T15:55:09Z
  Finalizers:
    baremetalhost.metal3.io
  Generation:        1
  Resource Version:  1260361470
  UID:               05ecda95-f03d-4c6e-a542-c81d7bf08e18
Spec:
  Automated Cleaning Mode:  disabled
  Bmc:
    Address:                           idrac-virtualmedia+https://192.168.51.44/redfish/v1/Systems/System.Embedded.1
    Credentials Name:                  bmc-secret-dell-server-randu2
    Disable Certificate Verification:  true
  Boot MAC Address:                    40:A6:B7:82:54:07
  Online:                              false
  Preprovisioning Network Data Name:   network-data-dell-server-randu2
  Root Device Hints:
    Device Name:  /dev/disk/by-path/pci-0000:04:00.0-ata-2
Status:
  Error Count:    5
  Error Message:  Failed to inspect hardware. Reason: unable to start inspection: Validation of image href http://metal3-image-customization-service.openshift-machine-api.svc.cluster.local/d4181d84-1a8c-416d-8498-63ed09a1a565 failed, reason: HTTPConnectionPool(host='metal3-image-customization-service.openshift-machine-api.svc.cluster.local', port=80): Max retries exceeded with url: /d4181d84-1a8c-416d-8498-63ed09a1a565 (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7f698eea3fe0>: Failed to establish a new connection: [Errno -2] Name or service not known'))
  Error Type:     inspection error
```

The error seems related to failing DNS lookup, as also specified in metal3-ironic logs:

```
oc logs metal3-757b75d8b5-b7dd2 -n openshift-machine-api -c metal3-ironic | grep -i error
2026-01-16 15:34:52.325 1 DEBUG ironic.api.method [None req-a16758d1-b874-41fa-896a-3eea8aeeef10 - - - - - -] Client-side error: Node 6dbaedee-0d8d-44cb-9cf6-eaa2a4b812c0 could not be found. format_exception /usr/lib/python3.12/site-packages/ironic/api/method.py:124
2026-01-16 15:44:53.369 1 DEBUG ironic.api.method [None req-7cb950bc-f19c-475f-9b30-f380ec8b873d - - - - - -] Client-side error: Node 6dbaedee-0d8d-44cb-9cf6-eaa2a4b812c0 could not be found. format_exception /usr/lib/python3.12/site-packages/ironic/api/method.py:124
2026-01-16 15:54:54.388 1 DEBUG ironic.api.method [None req-71c80419-5122-4cb5-809c-e729678d8403 - - - - - -] Client-side error: Node 6dbaedee-0d8d-44cb-9cf6-eaa2a4b812c0 could not be found. format_exception /usr/lib/python3.12/site-packages/ironic/api/method.py:124
2026-01-16 15:55:12.748 1 DEBUG ironic.api.method [None req-a0489774-b93d-4d9f-a2f2-2b7354bcc4a9 - - - - - -] Client-side error: Node dell-pool~dell-server-randu2 could not be found. format_exception /usr/lib/python3.12/site-packages/ironic/api/method.py:124
2026-01-16 15:55:13.248 1 DEBUG ironic.api.method [None req-d2eddcd9-ec89-418a-9a64-1f1109c7b5a8 - - - - - -] Client-side error: Node dell-server-randu2 could not be found. format_exception /usr/lib/python3.12/site-packages/ironic/api/method.py:124
2026-01-16 15:55:38.820 1 DEBUG ironic.api.method [None req-8e163852-6519-4d3a-bb0e-39cc86f5dff0 - - - - - -] Client-side error: Node inventory record for node 3 could not be found. format_exception /usr/lib/python3.12/site-packages/ironic/api/method.py:124
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface [None req-858843b9-3ba4-4169-9ec4-2ac123255761 - - - - - -] Unable to start managed inspection for node 2e123f5d-6bfe-4e00-a9d2-1dbdb9e52335: Validation of image href http://metal3-image-customization-service.openshift-machine-api.svc.cluster.local/d4181d84-1a8c-416d-8498-63ed09a1a565 failed, reason: HTTPConnectionPool(host='metal3-image-customization-service.openshift-machine-api.svc.cluster.local', port=80): Max retries exceeded with url: /d4181d84-1a8c-416d-8498-63ed09a1a565 (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7f69905d80b0>: Failed to establish a new connection: [Errno -2] Name or service not known')): ironic.common.exception.ImageRefValidationFailed: Validation of image href http://metal3-image-customization-service.openshift-machine-api.svc.cluster.local/d4181d84-1a8c-416d-8498-63ed09a1a565 failed, reason: HTTPConnectionPool(host='metal3-image-customization-service.openshift-machine-api.svc.cluster.local', port=80): Max retries exceeded with url: /d4181d84-1a8c-416d-8498-63ed09a1a565 (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7f69905d80b0>: Failed to establish a new connection: [Errno -2] Name or service not known'))
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface Traceback (most recent call last):
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/eventlet/support/greendns.py", line 463, in resolve
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     return _proxy.query(name, rdtype, raise_on_no_answer=raises,
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/eventlet/support/greendns.py", line 419, in query
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     return end()
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface            ^^^^^
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/eventlet/support/greendns.py", line 398, in end
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     raise result[1]
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/eventlet/support/greendns.py", line 379, in step
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     a = fun(*args, **kwargs)
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface         ^^^^^^^^^^^^^^^^^^^^
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/dns/resolver.py", line 1364, in query
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     return self.resolve(
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface            ^^^^^^^^^^^^^
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/dns/resolver.py", line 1318, in resolve
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     (nameserver, tcp, backoff) = resolution.next_nameserver()
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/dns/resolver.py", line 763, in next_nameserver
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     raise NoNameservers(request=self.request, errors=self.errors)
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface dns.resolver.NoNameservers: All nameservers failed to answer the query metal3-image-customization-service.openshift-machine-api.svc.cluster.local.mgmt.ocloud.lab. IN A: Server Do53:172.30.0.10@53 answered REFUSED
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface 
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface During handling of the above exception, another exception occurred:
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface 
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface Traceback (most recent call last):
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/urllib3/connection.py", line 174, in _new_conn
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     conn = connection.create_connection(
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/urllib3/util/connection.py", line 72, in create_connection
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     for res in socket.getaddrinfo(host, port, family, socket.SOCK_STREAM):
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/eventlet/support/greendns.py", line 558, in getaddrinfo
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     qname, addrs = _getaddrinfo_lookup(host, family, flags)
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/eventlet/support/greendns.py", line 529, in _getaddrinfo_lookup
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     raise err
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/eventlet/support/greendns.py", line 518, in _getaddrinfo_lookup
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     answer = resolve(host, qfamily, False, use_network=use_network)
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/eventlet/support/greendns.py", line 473, in resolve
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     _raise_new_error(EAI_NODATA_ERROR)
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/eventlet/support/greendns.py", line 100, in _raise_new_error
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     raise error_instance.__class__(*error_instance.args)
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface socket.gaierror: [Errno -2] Name or service not known
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface 
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface During handling of the above exception, another exception occurred:
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface 
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface Traceback (most recent call last):
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/urllib3/connectionpool.py", line 715, in urlopen
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     httplib_response = self._make_request(
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface                        ^^^^^^^^^^^^^^^^^^^
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/urllib3/connectionpool.py", line 416, in _make_request
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     conn.request(method, url, **httplib_request_kw)
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/urllib3/connection.py", line 244, in request
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     super(HTTPConnection, self).request(method, url, body=body, headers=headers)
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib64/python3.12/http/client.py", line 1327, in request
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     self._send_request(method, url, body, headers, encode_chunked)
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib64/python3.12/http/client.py", line 1373, in _send_request
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     self.endheaders(body, encode_chunked=encode_chunked)
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib64/python3.12/http/client.py", line 1322, in endheaders
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     self._send_output(message_body, encode_chunked=encode_chunked)
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib64/python3.12/http/client.py", line 1081, in _send_output
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     self.send(msg)
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib64/python3.12/http/client.py", line 1025, in send
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     self.connect()
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/urllib3/connection.py", line 205, in connect
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     conn = self._new_conn()
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface            ^^^^^^^^^^^^^^^^
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/urllib3/connection.py", line 186, in _new_conn
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     raise NewConnectionError(
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface urllib3.exceptions.NewConnectionError: <urllib3.connection.HTTPConnection object at 0x7f69905d80b0>: Failed to establish a new connection: [Errno -2] Name or service not known
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface 
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface During handling of the above exception, another exception occurred:
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface 
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface Traceback (most recent call last):
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/requests/adapters.py", line 667, in send
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     resp = conn.urlopen(
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface            ^^^^^^^^^^^^^
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/urllib3/connectionpool.py", line 799, in urlopen
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     retries = retries.increment(
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface               ^^^^^^^^^^^^^^^^^^
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/urllib3/util/retry.py", line 594, in increment
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     raise MaxRetryError(_pool, url, error or ResponseError(cause))
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface urllib3.exceptions.MaxRetryError: HTTPConnectionPool(host='metal3-image-customization-service.openshift-machine-api.svc.cluster.local', port=80): Max retries exceeded with url: /d4181d84-1a8c-416d-8498-63ed09a1a565 (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7f69905d80b0>: Failed to establish a new connection: [Errno -2] Name or service not known'))
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface 
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface During handling of the above exception, another exception occurred:
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface 
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface Traceback (most recent call last):
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/ironic/common/image_service.py", line 178, in validate_href
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     response = requests.head(image_href, verify=verify,
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/requests/api.py", line 100, in head
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     return request("head", url, **kwargs)
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/requests/api.py", line 59, in request
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     return session.request(method=method, url=url, **kwargs)
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/requests/sessions.py", line 589, in request
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     resp = self.send(prep, **send_kwargs)
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/requests/sessions.py", line 703, in send
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     r = adapter.send(request, **kwargs)
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/requests/adapters.py", line 700, in send
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     raise ConnectionError(e, request=request)
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface requests.exceptions.ConnectionError: HTTPConnectionPool(host='metal3-image-customization-service.openshift-machine-api.svc.cluster.local', port=80): Max retries exceeded with url: /d4181d84-1a8c-416d-8498-63ed09a1a565 (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7f69905d80b0>: Failed to establish a new connection: [Errno -2] Name or service not known'))
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface 
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface During handling of the above exception, another exception occurred:
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface 
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface Traceback (most recent call last):
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/ironic/drivers/modules/inspector/interface.py", line 234, in inspect_hardware
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     self._start_managed_inspection(task)
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/ironic/drivers/modules/inspector/agent.py", line 52, in _start_managed_inspection
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     common.prepare_managed_inspection(task, ep)
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/ironic/drivers/modules/inspector/interface.py", line 162, in prepare_managed_inspection
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     task.driver.boot.prepare_ramdisk(task, ramdisk_params=params)
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/ironic/drivers/modules/redfish/boot.py", line 823, in prepare_ramdisk
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     iso_ref = image_utils.prepare_deploy_iso(task, ramdisk_params,
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/ironic/drivers/modules/image_utils.py", line 613, in prepare_deploy_iso
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     return prepare_iso_image(inject_files=inject_files)
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/ironic/drivers/modules/image_utils.py", line 460, in _prepare_iso_image
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     return prepare_remote_image(task, base_iso,
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/ironic/drivers/modules/image_utils.py", line 394, in prepare_remote_image
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     cache.fetch_image(image_url, tmp_file,
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/ironic/drivers/modules/image_cache.py", line 152, in fetch_image
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     img_info = img_service.show(href)
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface                ^^^^^^^^^^^^^^^^^^^^^^
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/ironic/common/image_service.py", line 273, in show
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface     response = self.validate_href(image_href)
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2026-01-16 15:55:42.019 1 ERROR ironic.drivers.modules.inspector.interface   File "/usr/lib/python3.12/site-packages/ironic/common/image_service.py", line 219, in validate_href
```

Nevertheless metal3-ironic container is able to resolve and reach the expected endpoint, as:

```
sh-5.1# curl http://metal3-image-customization-service.openshift-machine-api.svc.cluster.local:80
<!doctype html>
<meta name="viewport" content="width=device-width">
<pre>
<a href="7847bc6d-36da-48a3-97ba-d7369e61dae5">7847bc6d-36da-48a3-97ba-d7369e61dae5</a>
</pre>

sh-5.1# dig +short @172.30.0.10 metal3-image-customization-service.openshift-machine-api.svc.cluster.local
172.30.121.89
```

As an additional element, Tracing has been enabled on DNS operator to log queries to the aforementioned endpoint, as in the following trace:

```
[INFO] 100.64.0.2:33769 - 50093 "AAAA IN metal3-image-customization-service.openshift-machine-api.svc.cluster.local.openshift-machine-api.svc.cluster.local. udp 132 false 512" NXDOMAIN qr,aa,rd 225 0.000324391s
[INFO] 100.64.0.2:39826 - 39522 "AAAA IN metal3-image-customization-service.openshift-machine-api.svc.cluster.local.svc.cluster.local. udp 110 false 512" NXDOMAIN qr,aa,rd 203 0.000413708s
[INFO] 100.64.0.2:57190 - 45179 "AAAA IN metal3-image-customization-service.openshift-machine-api.svc.cluster.local.cluster.local. udp 106 false 512" NXDOMAIN qr,aa,rd 199 0.000271054s
[INFO] 100.64.0.2:35318 - 49017 "AAAA IN metal3-image-customization-service.openshift-machine-api.svc.cluster.local.mgmt.ocloud.lab. udp 108 false 512" REFUSED qr,rd,ra 108 0.002749578s
[INFO] 100.64.0.2:50684 - 43565 "A IN metal3-image-customization-service.openshift-machine-api.svc.cluster.local.mgmt.ocloud.lab. udp 108 false 512" REFUSED qr,rd,ra 108 0.001534604s
```     

Create a BMH resource and wait for introspection to fail    

    1.
    2.
    3.
    

Introspection fails    

Introspection is completed successfully and cluster deployment is started   

A similar discussion has been tracked internally on slack in the past https://redhat-internal.slack.com/archives/CG6252WBY/p1732188647685939