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Bug 1623159

Summary:	Live Migration over SSH Failing due to target on non-default port
Product:	Red Hat OpenStack	Reporter:	awaugama
Component:	openstack-tripleo-heat-templates	Assignee:	Ollie Walsh <owalsh>
Status:	CLOSED ERRATA	QA Contact:	Alexander Chuzhoy <sasha>
Severity:	urgent	Docs Contact:
Priority:	urgent
Version:	14.0 (Rocky)	CC:	jhakimra, jjelen, jschluet, mburns, owalsh, slinaber
Target Milestone:	beta	Keywords:	Triaged
Target Release:	14.0 (Rocky)
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	openstack-tripleo-heat-templates-9.0.0-0.20180831204458.17bb71e.0rc1.0rc1.el7ost	Doc Type:	No Doc Update
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-01-11 11:51:31 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	1600184

Description awaugama 2018-08-28 15:26:02 UTC

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

Comment 8 Joe H. Rahme 2018-10-03 12:26:20 UTC

Live migration works out of the box as of puddle 2018.09.27.1

Comment 16 errata-xmlrpc 2019-01-11 11:51:31 UTC

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