Bug 1817173

Summary:	Fix the kubelet configuration runtimeCgroups
Product:	OpenShift Container Platform	Reporter:	Ryan Phillips <rphillips>
Component:	Node	Assignee:	Ryan Phillips <rphillips>
Status:	CLOSED ERRATA	QA Contact:	Peter Ruan <pruan>
Severity:	urgent	Docs Contact:
Priority:	urgent
Version:	4.5	CC:	aos-bugs, jokerman, mifiedle, pruan
Target Milestone:	---
Target Release:	4.5.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	No Doc Update
Doc Text:		Story Points:	---
Clone Of:
Clones:	1817174 (view as bug list)		Environment:
Last Closed:	2020-07-13 17:23:43 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:	1817174

Description Ryan Phillips 2020-03-25 17:56:01 UTC

Description of problem:
While debugging the 1.18 rebase Stefan found:

Mar 25 07:17:51 ip-10-0-158-139 hyperkube[1300]: W0325 07:17:51.773950    1300 codec.go:118] using lenient decoding as strict decoding failed: strict decoder error for kind: KubeletConfiguration
Mar 25 07:17:51 ip-10-0-158-139 hyperkube[1300]: : v1beta1.KubeletConfiguration.SerializeImagePulls: ReadObject: found unknown field: runtimeCgroups, error found in #10 byte of ...|meCgroups":"/system.|..., bigger context ...|ds":250,"ro>

This is a serialization issue, and a misconfiguration in:

https://github.com/openshift/machine-config-operator/pull/1540/files

Version-Release number of selected component (if applicable):
4.5 and 4.4

How reproducible:


Steps to Reproduce:
1.
2.
3.

Actual results:


Expected results:


Additional info:

Comment 4 Peter Ruan 2020-03-30 21:09:16 UTC

verified with 4.5.0-0.nightly-2020-03-30-163144

>>>>>>>>>>>>>>>>
pruan@desktop ~ $ oc debug node/ip-10-0-165-193.us-east-2.compute.internal
Starting pod/ip-10-0-165-193us-east-2computeinternal-debug ...
To use host binaries, run `chroot /host`

chroot /host
Pod IP: 10.0.165.193
If you don't see a command prompt, try pressing enter.

sh-4.2# chroot /host
sh-4.4# cat /etc/kubernetes/kubelet.conf
kind: KubeletConfiguration
apiVersion: kubelet.config.k8s.io/v1beta1
authentication:
  x509:
    clientCAFile: /etc/kubernetes/kubelet-ca.crt
  anonymous:
    enabled: false
cgroupDriver: systemd
cgroupRoot: /
clusterDNS:
  - 172.30.0.10
clusterDomain: cluster.local
containerLogMaxSize: 50Mi
maxPods: 250
kubeAPIQPS: 50
kubeAPIBurst: 100
rotateCertificates: true
serializeImagePulls: false
staticPodPath: /etc/kubernetes/manifests
systemCgroups: /system.slice
systemReserved:
  cpu: 500m
  memory: 1Gi
  ephemeral-storage: 1Gi
featureGates:
  LegacyNodeRoleBehavior: false
  NodeDisruptionExclusion: true
  RotateKubeletServerCertificate: true
  SCTPSupport: true
  ServiceNodeExclusion: true
  SupportPodPidsLimit: true
serverTLSBootstrap: true

Comment 6 errata-xmlrpc 2020-07-13 17:23:43 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/RHBA-2020:2409