Bug 1811493

Summary:	Failed to create the KubeletConfig object
Product:	OpenShift Container Platform	Reporter:	Jian Zhang <jiazha>
Component:	Node	Assignee:	Ryan Phillips <rphillips>
Status:	CLOSED DUPLICATE	QA Contact:	Sunil Choudhary <schoudha>
Severity:	high	Docs Contact:
Priority:	high
Version:	4.4	CC:	aos-bugs, jokerman
Target Milestone:	---
Target Release:	4.4.0
Hardware:	Unspecified
OS:	Unspecified
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Fixed In Version:		Doc Type:	If docs needed, set a value
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Clone Of:		Environment:
Last Closed:	2020-03-09 13:34:36 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Description Jian Zhang 2020-03-09 03:49:35 UTC

Description of problem:
Got the below errors when creating the KubeletConfig object:
mac:~ jianzhang$ oc create -f pod_evication.yaml 
The KubeletConfig "worker-kubeconfig" is invalid: 
* spec.kubeletConfig.apiVersion: Required value: must not be empty
* spec.kubeletConfig.kind: Required value: must not be empty

Version-Release number of selected component (if applicable):
Cluster version is 4.4.0-0.nightly-2020-03-08-235004

How reproducible:
always

Steps to Reproduce:
1. Create a KubeleteConfig object by following https://docs.openshift.com/container-platform/4.3/nodes/nodes/nodes-nodes-garbage-collection.html#nodes-nodes-garbage-collection-configuring_nodes-nodes-configuring

mac:~ jianzhang$ oc label machineconfigpool worker custom-kubelet=small-pods
machineconfigpool.machineconfiguration.openshift.io/worker labeled
mac:~ jianzhang$ cat pod_evication.yaml 
apiVersion: machineconfiguration.openshift.io/v1
kind: KubeletConfig
metadata:
  name: worker-kubeconfig 
spec:
  machineConfigPoolSelector:
    matchLabels:
      custom-kubelet: small-pods 
  kubeletConfig:
    evictionSoft:
      memory.available: "90%"
      nodefs.available: "90%"
      nodefs.inodesFree: "90%"
    evictionPressureTransitionPeriod: 0s 


Actual results:
Got the below errors:
mac:~ jianzhang$ oc create -f pod_evication.yaml 
The KubeletConfig "worker-kubeconfig" is invalid: 
* spec.kubeletConfig.apiVersion: Required value: must not be empty
* spec.kubeletConfig.kind: Required value: must not be empty

Expected results:
The KubeletConfig object can be created successfully.

Additional info:
It did work well in 4.4.0-0.nightly-2020-03-04-012453.
mac:~ jianzhang$ oc create -f pod_evication.yaml 
kubeletconfig.machineconfiguration.openshift.io/worker-kubeconfig created
mac:~ jianzhang$ oc get clusterversion
NAME      VERSION                             AVAILABLE   PROGRESSING   SINCE   STATUS
version   4.4.0-0.nightly-2020-03-04-012453   True        False         58m     Cluster version is 4.4.0-0.nightly-2020-03-04-012453

Comment 1 Jian Zhang 2020-03-09 03:56:05 UTC

Workaround: add the apiVersion/Kind in it:

mac:~ jianzhang$ cat pod_evication.yaml 
apiVersion: machineconfiguration.openshift.io/v1
kind: KubeletConfig
metadata:
  name: worker-kubeconfig 
spec:
  machineConfigPoolSelector:
    matchLabels:
      custom-kubelet: small-pods 
  kubeletConfig:
    apiVersion: machineconfiguration.openshift.io/v1
    kind: KubeletConfig
    evictionSoft:
      memory.available: "90%"
      nodefs.available: "90%"
      nodefs.inodesFree: "90%"
    evictionPressureTransitionPeriod: 0s 

mac:~ jianzhang$ oc create -f pod_evication.yaml 
kubeletconfig.machineconfiguration.openshift.io/worker-kubeconfig created

mac:~ jianzhang$ oc get machineconfigpool
NAME     CONFIG                                             UPDATED   UPDATING   DEGRADED   MACHINECOUNT   READYMACHINECOUNT   UPDATEDMACHINECOUNT   DEGRADEDMACHINECOUNT   AGE
master   rendered-master-e3490b51f062c3a94b508209b44089f6   True      False      False      3              3                   3                     0                      94m
worker   rendered-worker-9bf0b68b8e317cb5aaccf7b61b2d13f5   False     True       False      3              0                   0                     0                      94m
mac:~ jianzhang$ oc get nodes
NAME                                         STATUS                        ROLES    AGE   VERSION
ip-10-0-131-77.us-east-2.compute.internal    Ready                         worker   88m   v1.17.1
ip-10-0-133-75.us-east-2.compute.internal    Ready                         master   95m   v1.17.1
ip-10-0-146-18.us-east-2.compute.internal    Ready                         master   96m   v1.17.1
ip-10-0-153-230.us-east-2.compute.internal   NotReady,SchedulingDisabled   worker   90m   v1.17.1
ip-10-0-168-220.us-east-2.compute.internal   Ready                         worker   88m   v1.17.1
ip-10-0-173-167.us-east-2.compute.internal   Ready                         master   96m   v1.17.1

Comment 2 Ryan Phillips 2020-03-09 13:34:36 UTC


*** This bug has been marked as a duplicate of bug 1811211 ***