Description of problem: When a target compute node isn't using the default port, ssh requires a known_hosts entry that isn't present with the latest tripleo deployment of OpenStack Version-Release number of selected component (if applicable): openstack-tripleo-common.noarch 9.2.1-0.20180803214330.el7ost How reproducible: Everytime Steps to Reproduce: 1. Create an instance with shared storage 2. Attempt to live migrate the instance Actual results: The instance live migrates to the other compute node Expected results: Live migration fails Additional info: From the upstream bug: It appears the behaviour of ssh client has changed. Previously a port was not required in /etc/ssh/ssh_known_hosts when running on a non-default port, now it is: [root@compute-1 heat-admin]# ssh compute-0.localdomain Permission denied (publickey,gssapi-keyex,gssapi-with-mic). [root@compute-1 heat-admin]# ssh -p 2022 compute-0.localdomain The authenticity of host '[compute-0.localdomain]:2022 ([172.17.1.19]:2022)' can't be established. ECDSA key fingerprint is SHA256:1kTWyAQTD3K1vGsiQQitfRChSk1drrtewcZ82VhGx1c. ECDSA key fingerprint is MD5:61:53:4a:e2:69:a6:b9:8b:70:39:8f:a6:a2:20:18:bd. Are you sure you want to continue connecting (yes/no)? ^C
Live migration works out of the box as of puddle 2018.09.27.1
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHEA-2019:0045