Bug 2040705

Summary: Du policy for standard cluster runs the PTP daemon on masters and workers
Product: OpenShift Container Platform Reporter: Jim Ramsay <jramsay>
Component: Telco EdgeAssignee: Jim Ramsay <jramsay>
Telco Edge sub component: ZTP QA Contact: Joshua Clark <josclark>
Status: CLOSED ERRATA Docs Contact:
Severity: high    
Priority: unspecified CC: keyoung
Version: 4.10   
Target Milestone: ---   
Target Release: 4.10.0   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: Telco:RAN
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2022-03-10 16:39:37 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:

Description Jim Ramsay 2022-01-14 15:18:23 UTC
Description of problem:
Our example DU policy runs the PTP daemon on workers and masters. This is fine for SNO and 3-node clusters, where all workers are also masters, but not correct for standard clusters, where only workers should be running PTP.

How reproducible:
100%

Steps to Reproduce:
1. Deploy a standard cluster and DU profile with ZTP
2. Check where the ptp daemon pods are running

Actual results:
The PTP daemon is running on all nodes

Expected results:
The PTP daemon is only running on worker nodes

Additional info:
This can be accomplished by adding the following to the PtpOperatorConfig spec:
>  daemonNodeSelector:
>    node-role.kubernetes.io/worker: ""

Comment 3 Joshua Clark 2022-02-23 12:23:22 UTC
Verified fixed on a standard 5-node cluster:

[josclark@registry ~]$ oc get nodes
NAME                              STATUS   ROLES    AGE   VERSION
helix16.lab.eng.tlv2.redhat.com   Ready    worker   8h    v1.23.3+2e8bad7
helix17.lab.eng.tlv2.redhat.com   Ready    master   8h    v1.23.3+2e8bad7
helix23.lab.eng.tlv2.redhat.com   Ready    worker   8h    v1.23.3+2e8bad7
helix26.lab.eng.tlv2.redhat.com   Ready    master   8h    v1.23.3+2e8bad7
helix27.lab.eng.tlv2.redhat.com   Ready    master   8h    v1.23.3+2e8bad7

In this example, helix16 and helix23 are the worker nodes.

[josclark@registry ~]$ oc get pods -A|grep -i linuxptp-daemon |awk {'print $2'} |while read POD; do oc get pod -n openshift-ptp $POD -o yaml |grep nodeName: ; done
  nodeName: helix16.lab.eng.tlv2.redhat.com
  nodeName: helix23.lab.eng.tlv2.redhat.com

PTP pods are only running on the worker nodes.

Comment 5 errata-xmlrpc 2022-03-10 16:39:37 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 4.10.3 security 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-2022:0056