Bug 1954121

Summary: [ceo] [release-4.7] Operator goes degraded when a second internal node ip is added after install
Product: OpenShift Container Platform Reporter: Maru Newby <mnewby>
Component: EtcdAssignee: Maru Newby <mnewby>
Status: CLOSED ERRATA QA Contact: ge liu <geliu>
Severity: medium Docs Contact:
Priority: medium    
Version: 4.7CC: gmeghnag, llopezmo, sbatsche
Target Milestone: ---   
Target Release: 4.7.z   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Cause: A second internal ip address is added to one or more control plane nodes. Consequence: The Etcd Operator goes degraded due to detecting the ip address change as a potential etcd membership change and does not regenerate etcd serving certificates for the node. Fix: The Etcd Operator differentiates between an ip address change for an existing node and for a new node. The operator will regenerate serving certificates for changes to an existing node. Result: Adding an ip address to a control plane node no longer results in the operator going degraded.
 Story Points: ---
Clone Of:
: 1954129 1965535 2007698 (view as bug list) Environment:
Last Closed: 2021-06-15 09:27:08 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:
Embargoed:
Bug Depends On: 1954129    
Bug Blocks: 1965535, 2007698    

Description Maru Newby 2021-04-27 15:47:21 UTC 
A change in the set of internal ip addresses for a node causes the operator to go degraded. The operator is unable to detect node changes, so any discrepancy between node internal addresses and the SANs of certificates for that node is presumed to represent a potential membership change requiring manual intervention.
Comment 3 Lucas López Montero 2021-05-25 13:24:57 UTC 
KCS solution https://access.redhat.com/solutions/6021331 updated with information related to this bug.
Comment 7 Siddharth Sharma 2021-06-04 18:38:59 UTC 
This bug will be shipped as part of next z-stream release 4.7.15 on June 14th, as 4.7.14 was dropped due to a regression https://bugzilla.redhat.com/show_bug.cgi?id=1967614
Comment 11 errata-xmlrpc 2021-06-15 09:27:08 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 (Moderate: OpenShift Container Platform 4.7.16 security and bug fix update), 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/RHSA-2021:2286