So tempest, seems to have failed to execute, or to be more precise, the plugin failed, to set the configuration as expected:

       Body: [{"path": "/driver", "value": "redfish", "op": "replace"}, {"path": "/deploy_interface", "value": "ramdisk", "op": "replace"}]
    Response - Headers: {'date': 'Thu, 20 Jul 2023 07:21:10 GMT', 'server': 'Apache/2.4.52 (Ubuntu)', 'x-openstack-ironic-api-minimum-version': '1.1', 'x-openstack-ironic-api-maximum-version': '1.86', 'x-openstack-ironic-api-version': '1.66', 'content-length': '2988', 'content-type': 'application/json', 'openstack-request-id': 'req-5498b2f1-096f-4252-913e-59045841d6b5', 'connection': 'close', 'status': '200', 'content-location': 'https://173.231.255.106/baremetal/v1/nodes/dc700a35-34d4-45bd-9002-854aa9d62def'}
        Body: b'{"uuid": "dc700a35-34d4-45bd-9002-854aa9d62def", "created_at": "2023-07-20T07:12:38+00:00", "updated_at": "2023-07-20T07:21:11+00:00", "automated_clean": null, "bios_interface": "no-bios", "boot_interface": "ipxe", "clean_step": {}, "conductor_group": "", "console_enabled": false, "console_interface": "no-console", "deploy_interface": "ramdisk", "deploy_step": {}, "description": null, "driver": "redfish", "driver_info": {"redfish_address": "http://173.231.255.106:9132", "redfish_username": "admin", "redfish_password": "******", "redfish_system_id": "/redfish/v1/Systems/node-3"}, "driver_internal_info": {}, "extra": {}, "fault": null, "inspection_finished_at": null, "inspection_started_at": null, "inspect_interface": "no-inspect", "instance_info": {}, "instance_uuid": "a25ed689-625a-48a1-a11c-b485a1dd58eb", "last_error": null, "lessee": null, "maintenance": false, "maintenance_reason": null, "management_interface": "redfish", "name": "node-3", "network_data": {}, "network_interface": "flat", "owner": null, "power_interface": "redfish", "power_state": "power off", "properties": {"cpu_arch": "x86_64", "capabilities": "boot_mode:uefi", "vendor": "Sushy Emulator"}, "protected": false, "protected_reason": null, "provision_state": "available", "provision_updated_at": "2023-07-20T07:12:51+00:00", "raid_config": {}, "raid_interface": "no-raid", "rescue_interface": "no-rescue", "reservation": "np0034723273", "resource_class": "baremetal", "retired": false, "retired_reason": null, "storage_interface": "noop", "target_power_state": null, "target_provision_state": null, "target_raid_config": {}, "traits": ["CUSTOM_GOLD"], "vendor_interface": "no-vendor", "links": [{"href": "https://173.231.255.106/baremetal/v1/nodes/dc700a35-34d4-45bd-9002-854aa9d62def", "rel": "self"}, {"href": "https://173.231.255.106/baremetal/nodes/dc700a35-34d4-45bd-9002-854aa9d62def", "rel": "bookmark"}], "conductor": "np0034723273", "allocation_uuid": null, "chassis_uuid": "58dec4c9-d6e3-400a-9890-420836dac790", "ports": [{"href": "https://173.231.255.106/baremetal/v1/nodes/dc700a35-34d4-45bd-9002-854aa9d62def/ports", "rel": "self"}, {"href": "https://173.231.255.106/baremetal/nodes/dc700a35-34d4-45bd-9002-854aa9d62def/ports", "rel": "bookmark"}], "states": [{"href": "https://173.231.255.106/baremetal/v1/nodes/dc700a35-34d4-45bd-9002-854aa9d62def/states", "rel": "self"}, {"href": "https://173.231.255.106/baremetal/nodes/dc700a35-34d4-45bd-9002-854aa9d62def/states", "rel": "bookmark"}], "portgroups": [{"href": "https://173.231.255.106/baremetal/v1/nodes/dc700a35-34d4-45bd-9002-854aa9d62def/portgroups", "rel": "self"}, {"href": "https://173.231.255.106/baremetal/nodes/dc700a35-34d4-45bd-9002-854aa9d62def/portgroups", "rel": "bookmark"}], "volume": [{"href": "https://173.231.255.106/baremetal/v1/nodes/dc700a35-34d4-45bd-9002-854aa9d62def/volume", "rel": "self"}, {"href": "https://173.231.255.106/baremetal/nodes/dc700a35-34d4-45bd-9002-854aa9d62def/volume", "rel": "bookmark"}]}' _log_request_full /opt/stack/tempest/tempest/lib/common/rest_client.py:464

note, only /driver and /deploy_interface gets set on the node.

The test class states:

https://github.com/openstack/ironic-tempest-plugin/blob/master/ironic_tempest_plugin/tests/scenario/ironic_standalone/test_ramdisk_iso.py#L51C5-L51C19

Which means boot_interface should be included:

https://github.com/openstack/ironic-tempest-plugin/blob/master/ironic_tempest_plugin/tests/scenario/baremetal_standalone_manager.py#L611-L622