I have freshly installed ovirt node 4.5 from the iso download here; https://resources.ovirt.org/pub/ovirt-4.5/iso/ovirt-node-ng-installer/4.5.0-... output from 'rpm -qa | grep ovirt' shows ovirt-hosted-engine-setup-2.6.3-1.el8.noarch ovirt-imageio-daemon-2.4.3-1.el8.x86_64 python38-ovirt-engine-sdk4-4.5.1-1.el8.x86_64 ovirt-imageio-common-2.4.3-1.el8.x86_64 ovirt-node-ng-image-update-placeholder-4.5.0.3-1.el8.noarch ovirt-openvswitch-2.15-3.el8.noarch python38-ovirt-imageio-client-2.4.3-1.el8.x86_64 ovirt-openvswitch-ipsec-2.15-3.el8.noarch ovirt-openvswitch-ovn-common-2.15-3.el8.noarch ovirt-openvswitch-ovn-host-2.15-3.el8.noarch centos-release-ovirt45-8.7-1.el8s.noarch ovirt-provider-ovn-driver-1.2.36-1.el8.noarch ovirt-host-dependencies-4.5.0-3.el8.x86_64 ovirt-release-host-node-4.5.0.3-1.el8.x86_64 ovirt-ansible-collection-2.0.3-1.el8.noarch ovirt-vmconsole-1.0.9-1.el8.noarch python3-ovirt-engine-sdk4-4.5.1-1.el8.x86_64 ovirt-node-ng-nodectl-4.4.2-1.el8.noarch ovirt-openvswitch-ovn-2.15-3.el8.noarch ovirt-hosted-engine-ha-2.5.0-1.el8.noarch ovirt-host-4.5.0-3.el8.x86_64 ovirt-engine-appliance-4.5-20220511122240.1.el8.x86_64 ovirt-vmconsole-host-1.0.9-1.el8.noarch ovirt-python-openvswitch-2.15-3.el8.noarch python38-ovirt-imageio-common-2.4.3-1.el8.x86_64 python3-ovirt-node-ng-nodectl-4.4.2-1.el8.noarch cockpit-ovirt-dashboard-0.16.0-1.el8.noarch python3-ovirt-setup-lib-1.3.3-1.el8.noarch ovirt-imageio-client-2.4.3-1.el8.x86_64 During the hosted engine deployment process, I get thru Step 3 ( the "Prepare VM" step) successfully. On Step 4 (Storage Settings), I set; - Storage type = iSCSI - Portal IP address = my ISCSI target's ip address - Accept the default Portal port number, which is already set to 3260 - Leave username & password blank (as I have no CHAP configured on the ISCSI target system) When I click the "Retrieve Target List" button there is a brief pause, followed by red error message which says "Retrieval of iSCSI targets failed" Upon reviewing the files in /var/log/ovirt-hosted-engine-setup on the ovirt node, I find a new log file named ovirt-hosted-engine-setup-ansible-iscsi_discover-20220614084053-in517x.log The message near the end of the log file are as follows; ------ snip ------ ..... 2022-06-14 08:41:03,510-0600 INFO ansible task start {'status': 'OK', 'ansible_type': 'task', 'ansible_playbook': '/usr/share/ovirt-hosted-engine-setup/ansible/trigger_role.yml', 'ansible_task': 'ovirt.ovirt.hosted_engine_setup : iSCSI discover'} 2022-06-14 08:41:03,511-0600 DEBUG ansible on_any args TASK: ovirt.ovirt.hosted_engine_setup : iSCSI discover kwargs is_conditional:False 2022-06-14 08:41:03,511-0600 DEBUG ansible on_any args localhost TASK: ovirt.ovirt.hosted_engine_setup : iSCSI discover kwargs 2022-06-14 08:41:06,430-0600 DEBUG var changed: host "localhost" var "ansible_play_hosts" type "<class 'list'>" value: "[]" 2022-06-14 08:41:06,430-0600 DEBUG var changed: host "localhost" var "ansible_play_batch" type "<class 'list'>" value: "[]" 2022-06-14 08:41:06,430-0600 DEBUG var changed: host "localhost" var "play_hosts" type "<class 'list'>" value: "[]" 2022-06-14 08:41:06,431-0600 ERROR ansible failed { "ansible_host": "localhost", "ansible_playbook": "/usr/share/ovirt-hosted-engine-setup/ansible/trigger_role.yml", "ansible_result": { "_ansible_no_log": false, "changed": false, "exception": "Traceback (most recent call last):\n File \"/tmp/ansible_ovirt_host_payload_ky4zlp1s/ansible_ovirt_host_payload.zip/ansible_collections/ovirt/ovirt/plugins/modules/ovirt_host.py\", line 638, in main\nTypeError: int() argument must be a string, a bytes-like object or a number, not 'NoneType'\n", "invocation": { "module_args": { "activate": true, "address": null, "check_upgrade": true, "cluster": null, "comment": null, "enroll_certificate": false, "fetch_nested": false, "force": false, "hosted_engine": null, "id": null, "iscsi": { "address": "192.168.1.2", "password": "", "port": null, "username": "" }, "kdump_integration": null, "kernel_params": null, "name": "ovirt-node01.internal.net", "nested_attributes": [], "override_display": null, "override_iptables": null, "password": null, "poll_interval": 3, "power_management_enabled": null, "public_key": false, "reboot_after_installation": null, "reboot_after_upgrade": true, "spm_priority": null, "ssh_port": null, "state": "iscsidiscover", "timeout": 600, "vgpu_placement": null, "wait": true } }, "msg": "int() argument must be a string, a bytes-like object or a number, not 'NoneType'" }, "ansible_task": "iSCSI discover", "ansible_type": "task", "status": "FAILED", "task_duration": 3 } 2022-06-14 08:41:06,431-0600 DEBUG ansible on_any args <ansible.executor.task_result.TaskResult object at 0x7f9c76744370> kwargs ignore_errors:None 2022-06-14 08:41:06,432-0600 INFO ansible stats { "ansible_playbook": "/usr/share/ovirt-hosted-engine-setup/ansible/trigger_role.yml", "ansible_playbook_duration": "00:11 Minutes", "ansible_result": "type: <class 'dict'>\nstr: {'localhost': {'ok': 5, 'failures': 1, 'unreachable': 0, 'changed': 0, 'skipped': 0, 'rescued': 0, 'ignored': 0}}", "ansible_type": "finish", "status": "FAILED" } 2022-06-14 08:41:06,432-0600 INFO SUMMARY: Duration Task Name -------- -------- [ < 1 sec ] Execute just a specific set of steps [ 00:01 ] Force facts gathering [ 00:03 ] Obtain SSO token using username/password credentials [ 00:03 ] Fetch host facts [ FAILED ] iSCSI discover 2022-06-14 08:41:06,432-0600 DEBUG ansible on_any args <ansible.executor.stats.AggregateStats object at 0x7f9c793444c0> kwargs ------ snip ------ The error suggest that the iSCSI portal port number (which is defaulted to 3260 in the UI) is not being properly passed into the python module ovirt/ovirt/plugins/modules/ovirt_host.py Looking at the code at line 638 of ovirt_host.py, found here; https://github.com/oVirt/ovirt-ansible-collection/blob/2.0.3-1/plugins/modul... I see; ..... elif state == 'iscsidiscover': host_id = get_id_by_name(hosts_service, module.params['name']) iscsi_param = module.params['iscsi'] iscsi_targets = hosts_service.service(host_id).discover_iscsi( iscsi=otypes.IscsiDetails( port=int(iscsi_param.get('port', 3260)), <---- line 638 username=iscsi_param.get('username'), password=iscsi_param.get('password'), address=iscsi_param.get('address'), portal=iscsi_param.get('portal'), ), ) ret = { 'changed': False, 'id': host_id, 'iscsi_targets': [iscsi.target for iscsi in iscsi_targets], 'iscsi_targets_struct': [get_dict_of_struct( struct=iscsi, connection=connection, fetch_nested=module.params.get('fetch_nested'), attributes=module.params.get('nested_attributes'), ) for iscsi in iscsi_targets], } ..... I'm not a Python expert, so I can't tell if this logic is correct or not. Looking at Git history on this code, it looks like the last time a change was made effecting ISCSI was in May of 2021; https://github.com/oVirt/ovirt-ansible-collection/commit/1c4c18d844a69b821fb... By Martin Necas - https://github.com/mnecas I gotta believe I'm not the first one to try setting up oVirt 4.5 hosted engine with ISCSI storage. Is anyone else out there using ISCSI storage with oVirt 4.5.0.3 yet? How did you get it working?