Bug 1829233

Summary: DNS LB not allowing UDP traffic after Octavia upgrade
Product: OpenShift Container Platform Reporter: Maysa Macedo <mdemaced>
Component: NetworkingAssignee: Maysa Macedo <mdemaced>
Networking sub component: kuryr QA Contact: GenadiC <gcheresh>
Status: CLOSED ERRATA Docs Contact:
Severity: medium    
Priority: medium CC: ltomasbo, rlobillo
Version: 4.3.z   
Target Milestone: ---   
Target Release: 4.5.0   
Hardware: Unspecified   
OS: Unspecified   
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of:
: 1841029 (view as bug list) Environment:
Last Closed: 2020-07-13 17:32:29 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:    
Bug Blocks: 1841029    

Description Maysa Macedo 2020-04-29 09:17:08 UTC
Description of problem:

In case Octavia is upgraded from OSP13 to OSP16, the support for UDP listener becomes available and the webhook that enforces DNS resolution over TCP is removed from the cluster. In order to ensure the DNS resolution is working fine for any new pod that gets created the DNS service must be recreated so the UDP listeners becomes available on the new amphora.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. Upgrade Octavia from OSP13 to OSP16 with amphora
2. Verify the Kuryr Controller keeps retrying to add pool on a load balancer with old amphora and as not allowed keeps restarting

Actual results:

Expected results:

Additional info:

Comment 3 rlobillo 2020-06-02 09:07:21 UTC
Octavia component update should be part of OSP13 to OSP16 upgrade which is not supported at the moment, so QE verification only confirms that the fix code is present on 4.5.0-0.nightly-2020-05-29-005153

Comment 4 errata-xmlrpc 2020-07-13 17:32:29 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.