Ansible failed to update OAM floating IP on re-run

[Anujeyan Manokeran]

Brief Description
-----------------
             During the Ansible run it was observed when OAM floating IP address was changed and re-executed it fails on system host-if-add. Here it allow the user to correct the OAM floating ip address. Below logs shows the error.

TASK [bringup-essential-services : Add loopback interface] *****************************************************************************************************
failed: [localhost] (item=source /etc/platform/openrc; system host-if-add controller-0 lo virtual none lo -c platform --networks mgmt -m 1500) => {"changed": true, "cmd": "source /etc/platform/openrc; system host-if-add controller-0 lo virtual none lo -c platform --networks mgmt -m 1500", "delta": "0:00:01.940350", "end": "2019-05-16 15:57:00.243881", "item": "source /etc/platform/openrc; system host-if-add controller-0 lo virtual none lo -c platform --networks mgmt -m 1500", "msg": "non-zero return code", "rc": 1, "start": "2019-05-16 15:56:58.303531", "stderr": "Name must be unique.", "stderr_lines": ["Name must be unique."], "stdout": "", "stdout_lines": []}
changed: [localhost] => (item=source /etc/platform/openrc; system host-if-modify controller-0 -c platform --networks cluster-host lo)
failed: [localhost] (item=ip addr add 192.168.206.3/24 brd 192.168.206.255 dev lo scope host label lo:5) => {"changed": true, "cmd": "ip addr add 192.168.206.3/24 brd 192.168.206.255 dev lo scope host label lo:5", "delta": "0:00:00.002829", "end": "2019-05-16 15:57:03.457617", "item": "ip addr add 192.168.206.3/24 brd 192.168.206.255 dev lo scope host label lo:5", "msg": "non-zero return code", "rc": 2, "start": "2019-05-16 15:57:03.454788", "stderr": "RTNETLINK answers: File exists", "stderr_lines": ["RTNETLINK answers: File exists"], "stdout": "", "stdout_lines": []}
failed: [localhost] (item=ip addr add 192.168.204.3/24 brd 192.168.204.255 dev lo scope host label lo:1) => {"changed": true, "cmd": "ip addr add 192.168.204.3/24 brd 192.168.204.255 dev lo scope host label lo:1", "delta": "0:00:00.003095", "end": "2019-05-16 15:57:03.579251", "item": "ip addr add 192.168.204.3/24 brd 192.168.204.255 dev lo scope host label lo:1", "msg": "non-zero return code", "rc": 2, "start": "2019-05-16 15:57:03.576156", "stderr": "RTNETLINK answers: File exists", "stderr_lines": ["RTNETLINK answers: File exists"], "stdout": "", "stdout_lines": []}
failed: [localhost] (item=ip addr add 169.254.202.2/24 dev lo scope host) => {"changed": true, "cmd": "ip addr add 169.254.202.2/24 dev lo scope host", "delta": "0:00:00.002926", "end": "2019-05-16 15:57:03.695980", "item": "ip addr add 169.254.202.2/24 dev lo scope host", "msg": "non-zero return code", "rc": 2, "start": "2019-05-16 15:57:03.693054", "stderr": "RTNETLINK answers: File exists", "stderr_lines": ["RTNETLINK answers: File exists"], "stdout": "", "stdout_lines": []}
failed: [localhost] (item=ip addr add 192.168.206.2/24 dev lo scope host) => {"changed": true, "cmd": "ip addr add 192.168.206.2/24 dev lo scope host", "delta": "0:00:00.003256", "end": "2019-05-16 15:57:03.816694", "item": "ip addr add 192.168.206.2/24 dev lo scope host", "msg": "non-zero return code", "rc": 2, "start": "2019-05-16 15:57:03.813438", "stderr": "RTNETLINK answers: File exists", "stderr_lines": ["RTNETLINK answers: File exists"], "stdout": "", "stdout_lines": []}
failed: [localhost] (item=ip addr add 192.168.204.2/24 dev lo scope host) => {"changed": true, "cmd": "ip addr add 192.168.204.2/24 dev lo scope host", "delta": "0:00:00.003157", "end": "2019-05-16 15:57:03.931935", "item": "ip addr add 192.168.204.2/24 dev lo scope host", "msg": "non-zero return code", "rc": 2, "start": "2019-05-16 15:57:03.928778", "stderr": "RTNETLINK answers: File exists", "stderr_lines": ["RTNETLINK answers: File exists"], "stdout": "", "stdout_lines": []}
failed: [localhost] (item=ip addr add 192.168.204.5/24 dev lo scope host) => {"changed": true, "cmd": "ip addr add 192.168.204.5/24 dev lo scope host", "delta": "0:00:00.003000", "end": "2019-05-16 15:57:04.085726", "item": "ip addr add 192.168.204.5/24 dev lo scope host", "msg": "non-zero return code", "rc": 2, "start": "2019-05-16 15:57:04.082726", "stderr": "RTNETLINK answers: File exists", "stderr_lines": ["RTNETLINK answers: File exists"], "stdout": "", "stdout_lines": []}
failed: [localhost] (item=ip addr add 192.168.204.6/24 dev lo scope host) => {"changed": true, "cmd": "ip addr add 192.168.204.6/24 dev lo scope host", "delta": "0:00:00.002675", "end": "2019-05-16 15:57:04.197593", "item": "ip addr add 192.168.204.6/24 dev lo scope host", "msg": "non-zero return code", "rc": 2, "start": "2019-05-16 15:57:04.194918", "stderr": "RTNETLINK answers: File exists", "stderr_lines": ["RTNETLINK answers: File exists"], "stdout": "", "stdout_lines": []}

PLAY RECAP *****************************************************************************************************************************************************
localhost : ok=89 changed=17 unreachable=0 failed=1

Severity
--------
Major
Steps to Reproduce
------------------
1. Execute with wrong floating ip in .yml file example 128.224.151.183 . Fully run successfully.
2. Execute with correct floating ip example 128.224.151.83 failure as description .

Expected Behavior
------------------
No failure able to change the ip address.
Actual Behavior
----------------
As per description reject on cli.
Reproducibility
---------------.
Yes
System Configuration
--------------------
regular system
Branch/Pull Time/Commit
-----------------------
20190508T013000Z
Last Pass
---------
N/A
Timestamp/Logs
--------------

Test Activity
-------------
Regression test

[Ghada Khalil (gkhalil)]

Marking as release gating; related to new ansible deployment feature

[Tee Ngo (teewrs)]

This issue will be resolved once commit: https://review.opendev.org/658174 is merged.

[Tee Ngo (teewrs)]

The fix for this issue has long been delivered. Please verify and close. Thx!