Bug 1325817

Summary: [Docs][Director] [rhel-ospd][upgrade] Users who upgrade from ospd7.3-->8 and uses haproxy external load balancer must adjust haproxy.conf file according to the changes introduced in ospd 8
Product: Red Hat OpenStack Reporter: Leonid Natapov <lnatapov>
Component: documentationAssignee: Dan Macpherson <dmacpher>
Status: CLOSED CURRENTRELEASE QA Contact: RHOS Documentation Team <rhos-docs>
Severity: unspecified Docs Contact:
Priority: high    
Version: 8.0 (Liberty)CC: bperkins, ddomingo, dmacpher, fdinitto, gfidente, lnatapov, mcornea, rohara, sathlang, srevivo, ushkalim
Target Milestone: ---Keywords: Documentation, Triaged
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2017-05-31 17:06:08 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:
Bug Depends On: 1322857    
Bug Blocks:    

Description Leonid Natapov 2016-04-11 09:48:36 UTC 
Description of problem:

haproxy.cfg file has some changes in ospd8.
If users work with ospd7.3 and haproxy external load balancer  they have to adjust haproxy.cfg file on their external load balancer to reflect changes introduced in ospd8.

For example HAProxy configuration for Redis in ospd8.

listen redis
  bind 172.16.20.249:6379 
  balance first
  option tcp-check
  tcp-check connect
  tcp-check send AUTH\ examplepassword\r\n
  tcp-check send PING\r\n
  tcp-check expect string +PONG
  tcp-check send info\ replication\r\n
  tcp-check expect string role:master
  tcp-check send QUIT\r\n
  tcp-check expect string +OK
  server overcloud-controller-0 172.16.20.150:6379 check fall 5 inter 2000 rise 2
  server overcloud-controller-1 172.16.20.151:6379 check fall 5 inter 2000 rise 2
  server overcloud-controller-2 172.16.20.152:6379 check fall 5 inter 2000 rise 2
Comment 5 Marius Cornea 2016-04-18 19:51:13 UTC 
FWIW I've covered the changes required for Redis auth in BZ#1322857
Comment 6 Don Domingo 2016-09-15 04:18:36 UTC 
Reassigning back to default until work becomes pertinent (ie required info becomes available).
Comment 8 Sofer Athlan-Guyot 2017-05-29 12:52:36 UTC 
Hi Dan,

could we add a short warning on the 8 documentation that external lb need customization for the upgrade.  This is related to https://bugzilla.redhat.com/show_bug.cgi?id=1322857 and it just need to be added to upgrade documentation.
Comment 9 Dan Macpherson 2017-05-30 06:29:33 UTC 
Added a note to the pre-upgrade section:

"If using an external load balancer, update your load balancing settings to accommodate new services in Red Hat OpenStack Platform 8. For a full list of services and example configuration, see "Services Configuration Reference" in the External Load Balancing for the Overcloud guide."

Link: https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/8/html/upgrading_red_hat_openstack_platform/chap-upgrading_the_environment#sect-Important_Pre-Upgrade_Notes

Sofer, was this what was required? Did we need to mention anything further?
Comment 10 Sofer Athlan-Guyot 2017-05-31 17:02:48 UTC 
Hi Dan,

I think we're good.

Thanks.
Comment 11 Dan Macpherson 2017-05-31 17:06:08 UTC 
Thanks, Sofer!