I'ved added a record to the DNS server here:
ovirt-engine.example.com 10.0.0.109
This IP address is on the physical network that the host is on (host is on
10.0.0.171). I trust this is correct and I should not resolve to a natted IP
instead. I notice that regardless of this record, the name
ovirt-engine.example.com resolves to a natted IP: 192.168.124.51 because the
ansible script adds an entry to /etc/hosts:
192.168.124.51 ovirt-engine.example.com
While the script is running, if I I can successfully ping
ovirt-engine.example.com, it responds on 192.168.124.51. So as you say: "host
can correctly resolve the name of the engine VM", but it's not the DNS record's
IP. If I remove the DNS record and run hosted-engine --deploy, I get error:
[ ERROR ] Host name is not valid: ovirt-engine.example.com did not resolve into
an IP address
Anyway, I added back the DNS record and ran hosted-engine --deploy command, it
failed at:
[ INFO ] TASK [Clean /etc/hosts on the host]
[ ERROR ] fatal: [localhost]: FAILED! => {"msg": "The task includes an option
with an undefined variable. The error was: list object has no element 0\n\nThe
error appears to have been in
'/usr/share/ovirt-hosted-engine-setup/ansible/create_target_vm.yml': line 396,
column 5, but may\nbe elsewhere in the file depending on the exact syntax
problem.\n\nThe offending line appears to be:\n\n changed_when: True\n -
name: Clean /etc/hosts on the host\n ^ here\n"}
To debug, I added tasks to create_target_vm.yml that output the values of
local_vm_ip.std_out_lines[0] and FQDN that are used in this task, then ran the
usual deploy command again. They are both localhost:
[ INFO ] TASK [show local_vm_ip.std_out_lines[0] that will be written to etc
hosts]
[ INFO ] ok: [localhost]
[ INFO ] TASK [show FQDN]
[ INFO ] ok: [localhost]
This time, it gets past [Clean /etc/hosts on the host], but hangs at [ INFO ]
TASK [Check engine VM health] same as before. I catted /etc/hosts while it was
hanging and it contains:
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
The ovirt-engine.example.com has been deleted! I pinged
ovirt-engine.example.com and it now resolves to its IP on the physical network:
10.0.0.109. So I added back this /etc/hosts entry:
192.168.124.51 ovirt-engine.example.com
It subsequently errored:
[ ERROR ] fatal: [localhost]: FAILED! => {"attempts": 120, "changed": true,
"cmd": ["hosted-engine", "--vm-status", "--json"], "delta": "0:00:00.167559",
"end": "2018-10-09 15:43:41.947274", "rc": 0, "start": "2018-10-09
15:43:41.779715", "stderr": "", "stderr_lines": [], "stdout": "{\"1\":
{\"conf_on_shared_storage\": true, \"live-data\": true, \"extra\":
\"metadata_parse_version=1\\nmetadata_feature_version=1\\ntimestamp=6810 (Tue
Oct 9 15:43:36 2018)\\nhost-id=1\\nscore=3400\\nvm_conf_refresh_time=6810 (Tue
Oct 9 15:43:37
2018)\\nconf_on_shared_storage=True\\nmaintenance=False\\nstate=EngineStarting\\nstopped=False\\n\",
\"hostname\": \"host\", \"host-id\": 1, \"engine-status\": {\"reason\":
\"failed liveliness check\", \"health\": \"bad\", \"vm\": \"up\", \"detail\":
\"Up\"}, \"score\": 3400, \"stopped\": false, \"maintenance\": false,
\"crc32\": \"c5d76f8b\", \"local_conf_timestamp\": 6810, \"host-ts\": 6810},
\"global_maintenance\": false}", "stdout_lines": ["{\"1\": {\"conf_
on_shared_storage\": true, \"live-data\": true, \"extra\":
\"metadata_parse_version=1\\nmetadata_feature_version=1\\ntimestamp=6810 (Tue
Oct 9 15:43:36 2018)\\nhost-id=1\\nscore=3400\\nvm_conf_refresh_time=6810 (Tue
Oct 9 15:43:37
2018)\\nconf_on_shared_storage=True\\nmaintenance=False\\nstate=EngineStarting\\nstopped=False\\n\",
\"hostname\": \"host\", \"host-id\": 1, \"engine-status\": {\"reason\":
\"failed liveliness check\", \"health\": \"bad\", \"vm\": \"up\", \"detail\":
\"Up\"}, \"score\": 3400, \"stopped\": false, \"maintenance\": false,
\"crc32\": \"c5d76f8b\", \"local_conf_timestamp\": 6810, \"host-ts\": 6810},
\"global_maintenance\": false}"]}
How can I check the hosted-engine's IP address to ensure name resolution is
correct?
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