Wallaby overcloud deployment failed with external ceph.

[Prashant Sakharkar]

Description
===========

Wallaby Openstack Overcloud fails (stuck) when configuring external ceph with Overcloud.

Steps to reproduce
==================
1) Deploy undercloud.
2) configure network and baremetal
3) Deploy overcloud with the template

 -e /home/stack/templates/ceph-config.yaml

Deployment fails with unable to ssh the node.

Expected result
===============
Should be able to deploy overcloud with ceph without prompting for ssh.

Actual result
=============

Overcloud ansible fails with the following error:-
2022-03-10 04:04:19.634394 | 525400e3-5730-5152-bdc7-0000000035e8 | TASK | detect private key file in $HOME/.ssh/id_rsa_tripleo
2022-03-10 04:04:19.845144 | 525400e3-5730-5152-bdc7-0000000035e8 | OK | detect private key file in $HOME/.ssh/id_rsa_tripleo | undercloud
2022-03-10 04:04:19.846640 | 525400e3-5730-5152-bdc7-0000000035e8 | TIMING | tripleo_ceph_work_dir : detect private key file in $HOME/.ssh/id_rsa_tripleo | undercloud | 0:19:22.366341 | 0.21s
2022-03-10 04:04:19.852012 | 525400e3-5730-5152-bdc7-0000000035e9 | TASK | set private key file
2022-03-10 04:04:19.880785 | 525400e3-5730-5152-bdc7-0000000035e9 | OK | set private key file | undercloud
2022-03-10 04:04:19.881835 | 525400e3-5730-5152-bdc7-0000000035e9 | TIMING | tripleo_ceph_work_dir : set private key file | undercloud | 0:19:22.401539 | 0.03s
2022-03-10 04:04:19.886667 | 525400e3-5730-5152-bdc7-0000000035eb | TASK | detect private key file in playbook_dir
2022-03-10 04:04:19.911441 | 525400e3-5730-5152-bdc7-0000000035eb | SKIPPED | detect private key file in playbook_dir | undercloud
2022-03-10 04:04:19.912513 | 525400e3-5730-5152-bdc7-0000000035eb | TIMING | tripleo_ceph_work_dir : detect private key file in playbook_dir | undercloud | 0:19:22.432218 | 0.03s
2022-03-10 04:04:19.917340 | 525400e3-5730-5152-bdc7-0000000035ec | TASK | set private key file
2022-03-10 04:04:19.939064 | 525400e3-5730-5152-bdc7-0000000035ec | SKIPPED | set private key file | undercloud
2022-03-10 04:04:19.940174 | 525400e3-5730-5152-bdc7-0000000035ec | TIMING | tripleo_ceph_work_dir : set private key file | undercloud | 0:19:22.459879 | 0.02s
2022-03-10 04:04:19.945085 | 525400e3-5730-5152-bdc7-000000003151 | TASK | run nodes-uuid
2022-03-10 04:04:19.965293 | 525400e3-5730-5152-bdc7-000000003151 | TIMING | run nodes-uuid | undercloud | 0:19:22.484989 | 0.02s
2022-03-10 04:04:20.026861 | 525400e3-5730-5152-bdc7-0000000038d8 | TASK | build nodes-uuid command as list
2022-03-10 04:04:20.056884 | 525400e3-5730-5152-bdc7-0000000038d8 | OK | build nodes-uuid command as list | undercloud
2022-03-10 04:04:20.058141 | 525400e3-5730-5152-bdc7-0000000038d8 | TIMING | tripleo_ceph_uuid : build nodes-uuid command as list | undercloud | 0:19:22.577845 | 0.03s
2022-03-10 04:04:20.063007 | 525400e3-5730-5152-bdc7-0000000038d9 | TASK | run nodes-uuid command
The authenticity of host '172.30.6.110 (172.30.6.110)' can't be established.
ECDSA key fingerprint is SHA256:h9Hfa1ZzWP7ZrzdTq5aRw9aD0Nn/DxAROR9XRyoKYHY.
The authenticity of host '172.30.6.106 (172.30.6.106)' can't be established.
ECDSA key fingerprint is SHA256:X+Mlcgk1KYgSxXVviGUz94ZESaWTslzaai58oGTZZrU.
Are you sure you want to continue connecting (yes/no/[fingerprint])?

-----------------------

template used:-

-e /home/stack/templates/ceph-config.yaml

---------------------------

resource_registry:
 OS::TripleO::Services::CephExternal: /usr/share/openstack-tripleo-heat-templates/deployment/ceph-ansible/ceph-external.yaml
parameter_defaults:
 # NOTE: These example parameters are required when using CephExternal
 CephClusterFSID: 'ba4b0466-63db-4ae7-84df-0433a6e4be02'
 CephClientKey: 'AQAVKXBgZ/u3KRAAb4WRHzi/dq+hhBMvKcZ94Q=='
 CephExternalMonHost: '172.25.3.100'
 # the following parameters enable Ceph backends for Cinder, Glance, Gnocchi and Nova
 NovaEnableRbdBackend: false
 CinderEnableRbdBackend: true
 # If the Ceph pools which host VMs, Volumes and Images do not match these
 # names OR the client keyring to use is not named 'openstack', edit the
 # following as needed.
 CinderRbdPoolName: volumes
 CephClientUserName: cinder
 # finally we disable the Cinder LVM backend
 CinderEnableIscsiBackend: true
 # Backward compatibility setting, will be removed in the future
 CephAdminKey: ''

Environment
===========

Wallaby Openstack on Centos-stream 8