featureset039 - supplemental node fail to ping undercloud

[Harald Jensås]

> - tripleo-ci-centos-8-ovb-3ctlr_1comp_1supp-featureset039 https://review.rdoproject.org/zuul/build/50dc703a1f6047469d6d3e53cc736f39 : FAILURE in 1h 09m 36s

2021-05-21 08:09:20.241329 | primary | TASK [Set eth2 public IP address] **********************************************
2021-05-21 08:09:20.241457 | primary | Friday 21 May 2021 08:09:20 +0000 (0:00:00.066) 0:15:53.444 ************
2021-05-21 08:09:27.413088 | primary | fatal: [supplemental]: FAILED! => {
2021-05-21 08:09:27.413180 | primary | "changed": false,
2021-05-21 08:09:27.413195 | primary | "cmd": "ip a add dev eth2 10.0.0.250/24;\nip l set eth2 up;\nip link set dev eth2 mtu 1450;\nping 10.0.0.1 -c 4 -q;\n",
2021-05-21 08:09:27.413210 | primary | "delta": "0:00:06.174850",
2021-05-21 08:09:27.413225 | primary | "end": "2021-05-21 08:09:27.387685",
2021-05-21 08:09:27.413239 | primary | "rc": 1,
2021-05-21 08:09:27.413254 | primary | "start": "2021-05-21 08:09:21.212835"
2021-05-21 08:09:27.413270 | primary | }

Networking on supplemental node looks ok:
https://logserver.rdoproject.org/14/792514/1/openstack-check/tripleo-ci-centos-8-ovb-3ctlr_1comp_1supp-featureset039/50dc703/logs/supplemental/var/log/extra/network.txt.gz

  NOTE: eth2 has two ip addresses configured ... ?

Networking on undercloud ndoe looks ok:
https://logserver.rdoproject.org/14/792514/1/openstack-check/tripleo-ci-centos-8-ovb-3ctlr_1comp_1supp-featureset039/50dc703/logs/undercloud/var/log/extra/network.txt.gz