Is this supported?

I have a node, that centos 7.4 minimal is installed on, with an interface setup for an IP address.

I've yum installed nothing else except the ovirt-4.2.1-pre rpm, run screen, and then do the 'hosted-engine --deploy' command.

It hangs on:

[ INFO  ] changed: [localhost]
[ INFO  ] TASK [Get ovirtmgmt route table id]
[ ERROR ] fatal: [localhost]: FAILED! => {"attempts": 50, "changed": true, "cmd": "ip rule list | grep ovirtmgmt | sed s/\\\\[.*\\\\]\\ //g | awk '{ print $9 }'", "delta": "0:00:00.004845", "end": "2018-02-02 12:03:30.794860", "rc": 0, "start": "2018-02-02 12:03:30.790015", "stderr": "", "stderr_lines": [], "stdout": "", "stdout_lines": []}
[ ERROR ] Failed to execute stage 'Closing up': Failed executing ansible-playbook
[ INFO  ] Stage: Clean up
[ INFO  ] Cleaning temporary resources
[ INFO  ] TASK [Gathering Facts]
[ INFO  ] ok: [localhost]
[ INFO  ] TASK [Remove local vm dir]
[ INFO  ] ok: [localhost]
[ INFO  ] Generating answer file '/var/lib/ovirt-hosted-engine-setup/answers/answers-20180202120333.conf'
[ INFO  ] Stage: Pre-termination
[ INFO  ] Stage: Termination
[ ERROR ] Hosted Engine deployment failed: please check the logs for the issue, fix accordingly or re-deploy from scratch.
          Log file is located at /var/log/ovirt-hosted-engine-setup/ovirt-hosted-engine-setup-20180202115038-r11nh1.log

but the VM is up and running, just attached to the 192.168.122.0/24 subnet

[root@d8-r13-c2-n1 ~]# ssh root@192.168.122.37
root@192.168.122.37's password: 
Last login: Fri Feb  2 11:54:47 2018 from 192.168.122.1
[root@ovirt ~]# systemctl status ovirt-engine
● ovirt-engine.service - oVirt Engine
   Loaded: loaded (/usr/lib/systemd/system/ovirt-engine.service; enabled; vendor preset: disabled)
   Active: active (running) since Fri 2018-02-02 11:54:42 PST; 11min ago
 Main PID: 24724 (ovirt-engine.py)
   CGroup: /system.slice/ovirt-engine.service
           ├─24724 /usr/bin/python /usr/share/ovirt-engine/services/ovirt-engine/ovirt-engine.py --redirect-output --systemd=notify start
           └─24856 ovirt-engine -server -XX:+TieredCompilation -Xms3971M -Xmx3971M -Djava.awt.headless=true -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000 -Djsse...

Feb 02 11:54:41 ovirt.crt.nersc.gov systemd[1]: Starting oVirt Engine...
Feb 02 11:54:41 ovirt.crt.nersc.gov ovirt-engine.py[24724]: 2018-02-02 11:54:41,767-0800 ovirt-engine: INFO _detectJBossVersion:187 Detecting JBoss version. Running: /usr/lib/jvm/jre/...600000', '-
Feb 02 11:54:42 ovirt.crt.nersc.gov ovirt-engine.py[24724]: 2018-02-02 11:54:42,394-0800 ovirt-engine: INFO _detectJBossVersion:207 Return code: 0,  | stdout: '[u'WildFly Full 11.0.0....tderr: '[]'
Feb 02 11:54:42 ovirt.crt.nersc.gov systemd[1]: Started oVirt Engine.
Feb 02 11:55:25 ovirt.crt.nersc.gov python2[25640]: ansible-stat Invoked with checksum_algorithm=sha1 get_checksum=True follow=False path=/usr/share/ovirt-engine/playbooks/roles/ovir...ributes=True
Feb 02 11:55:29 ovirt.crt.nersc.gov python2[25698]: ansible-stat Invoked with checksum_algorithm=sha1 get_checksum=True follow=False path=/usr/share/ovirt-engine/playbooks/roles/ovir...ributes=True
Feb 02 11:55:30 ovirt.crt.nersc.gov python2[25741]: ansible-stat Invoked with checksum_algorithm=sha1 get_checksum=True follow=False path=/usr/share/ovirt-engine/playbooks/roles/ovir...ributes=True
Feb 02 11:55:30 ovirt.crt.nersc.gov python2[25767]: ansible-stat Invoked with checksum_algorithm=sha1 get_checksum=True follow=False path=/usr/share/ovirt-engine/playbooks/roles/ovir...ributes=True
Feb 02 11:55:31 ovirt.crt.nersc.gov python2[25795]: ansible-stat Invoked with checksum_algorithm=sha1 get_checksum=True follow=False path=/etc/ovirt-engine-metrics/config.yml get_md5...ributes=True

The 'ip rule list' never has an ovirtmgmt rule/table in it.. which means the ansible script loops then dies; vdsmd has never configured the network on the node.

[root@d8-r13-c2-n1 ~]# systemctl status vdsmd -l
● vdsmd.service - Virtual Desktop Server Manager
   Loaded: loaded (/usr/lib/systemd/system/vdsmd.service; enabled; vendor preset: enabled)
   Active: active (running) since Fri 2018-02-02 11:55:11 PST; 14min ago
 Main PID: 7654 (vdsmd)
   CGroup: /system.slice/vdsmd.service
           └─7654 /usr/bin/python2 /usr/share/vdsm/vdsmd

Feb 02 11:55:11 d8-r13-c2-n1 vdsmd_init_common.sh[7551]: vdsm: Running dummybr
Feb 02 11:55:11 d8-r13-c2-n1 vdsmd_init_common.sh[7551]: vdsm: Running tune_system
Feb 02 11:55:11 d8-r13-c2-n1 vdsmd_init_common.sh[7551]: vdsm: Running test_space
Feb 02 11:55:11 d8-r13-c2-n1 vdsmd_init_common.sh[7551]: vdsm: Running test_lo
Feb 02 11:55:11 d8-r13-c2-n1 systemd[1]: Started Virtual Desktop Server Manager.
Feb 02 11:55:12 d8-r13-c2-n1 vdsm[7654]: WARN File: /var/run/vdsm/trackedInterfaces/vnet0 already removed
Feb 02 11:55:12 d8-r13-c2-n1 vdsm[7654]: WARN Not ready yet, ignoring event '|virt|VM_status|ba56a114-efb0-45e0-b2ad-808805ae93e0' args={'ba56a114-efb0-45e0-b2ad-808805ae93e0': {'status': 'Powering up', 'displayInfo': [{'tlsPort': '-1', 'ipAddress': '127.0.0.1', 'type': 'vnc', 'port': '5900'}], 'hash': '5328187475809024041', 'cpuUser': '0.00', 'monitorResponse': '0', 'elapsedTime': '0', 'cpuSys': '0.00', 'vcpuPeriod': 100000L, 'timeOffset': '0', 'clientIp': '', 'pauseCode': 'NOERR', 'vcpuQuota': '-1'}}
Feb 02 11:55:13 d8-r13-c2-n1 vdsm[7654]: WARN MOM not available.
Feb 02 11:55:13 d8-r13-c2-n1 vdsm[7654]: WARN MOM not available, KSM stats will be missing.
Feb 02 11:55:17 d8-r13-c2-n1 vdsm[7654]: WARN ping was deprecated in favor of ping2 and confirmConnectivity

Do I need to install a complete ovirt-engine on the node first, bring the node into ovirt, then bring up hosted-engine?  I'd like to avoid this and just go straight to hosted-engine setup.

thomas