The task "tripleo_ipa_registration" fails with a "Name or service not known" error

Solution Verified - Updated -

Issue

  • While running an openstack overcloud deploy command, or an update, the process fails with this error:
TASK [tripleo_ipa_registration : add sub_host] **********************************
[...]
fatal: [undercloud]: FAILED! => {"changed": false, "msg": "host_find: Request failed: <urlopen error [Errno -2] Name or service not known>"}
  • the IDM servers fqdn has been changed since the latest RHOSP deployment

Environment

  • Red Hat Openstack (RHOSP) 16.1 with TLS Everywhere managed by novajoin
  • Red Hat Openstack (RHOSP) 16.2 with TLS Everywhere managed by novajoin

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