Bug 1473316

Summary:	[HA] TripleO should support Node replacement of OpenDaylight controller
Product:	Red Hat OpenStack	Reporter:	Itzik Brown <itbrown>
Component:	puppet-tripleo	Assignee:	Janki <jchhatba>
Status:	CLOSED ERRATA	QA Contact:	Itzik Brown <itbrown>
Severity:	high	Docs Contact:
Priority:	high
Version:	12.0 (Pike)	CC:	itbrown, jchhatba, jcoufal, jjoyce, jschluet, lpeer, lruzicka, nyechiel, oblaut, slinaber, trozet, tvignaud
Target Milestone:	ga	Keywords:	TestOnly, Triaged
Target Release:	12.0 (Pike)
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:	N/A
Last Closed:	2017-12-13 21:43:17 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:	1414313

Description Itzik Brown 2017-07-20 13:11:11 UTC

Description of problem:
There is a procedure to replace an OpenStack controller node but not one for 
OpenDaylight controller.
TripleO should support this case.

Version-Release number of selected component (if applicable):
openstack-tripleo-heat-templates-7.0.0-0.20170706121722.el7ost.noarch

How reproducible:


Steps to Reproduce:
1.
2.
3.

Actual results:


Expected results:


Additional info:

Comment 1 Nir Yechiel 2017-07-20 18:04:05 UTC

Itzik, have you discussed this with Tim? Is there an upstream bug for this?

Comment 2 Itzik Brown 2017-07-23 07:35:07 UTC

No,I'll discuss it with him.

Comment 3 Itzik Brown 2017-08-06 07:03:18 UTC

The document for Node replacement:

https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux_openstack_platform/7/html/director_installation_and_usage/sect-replacing_controller_nodes

Comment 10 Tim Rozet 2017-08-18 16:18:00 UTC

After reading the instructions I believe that this method with OpenDaylight as a service on the controller should just work.  ODL is not managed by pacemaker and does not rely on the other services that require manual intervention.  The puppet-opendaylight module should fix the config files to use the new node as part of the cluster and restart all ODLs during the update.  That means there is likely < 5 min of downtime for ODL during the operation, but dataplane should remain up.

Comment 22 errata-xmlrpc 2017-12-13 21:43:17 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-2017:3462