Openstack FFU to 17.1 upgrade failed at node provision for overcloud 'ctlplane_cidr'

Solution Verified - Updated -

Environment

  • Red Hat Openstack Plataform 16.2.3, 16.1

Issue

Receive the error below at step 5.1.7 of a upgrade to RHOSP17.1 from RHOSP version early than 16.2.4.

"msg": "Error generating inventory for overcloud: 'ctlplane_cidr'"

Resolution

  1. If there is a backup of undercloud, restore the backup. Do a minor update and after the FFU.

  2. If not, open a case to Red Hat support.

Root Cause

The upgrade should be done from lastest minor/z version of major version 16 as informed in FFU doc, the issue was identified in BZ2249174.

Diagnostic Steps

  1. Check the output of the command for the FATAL message.
2024-01-01 01:01:01,001 p=00001 u=stack n=ansible | 2024-01-01 01:01:01.000001 | 00000001-0001-0001-0001-000000000001 |      FATAL | Generate ansible inventory | localhost | error={
    "changed": false,
    "error": "'ctlplane_cidr'",
...
    "msg": "Error generating inventory for overcloud: 'ctlplane_cidr'",
    "success": false
}

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