Bug 1698644

Summary:	oc explain explodes
Product:	OpenShift Container Platform	Reporter:	Eric Rich <erich>
Component:	oc	Assignee:	Maciej Szulik <maszulik>
Status:	CLOSED DUPLICATE	QA Contact:	zhou ying <yinzhou>
Severity:	low	Docs Contact:
Priority:	low
Version:	4.1.0	CC:	aos-bugs, jokerman, mfojtik, mmccomas, xxia
Target Milestone:	---	Keywords:	NeedsTestCase
Target Release:	4.1.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-04-12 10:08:04 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 Eric Rich 2019-04-10 20:51:35 UTC

Description of problem:

$ oc explain ingresscontroller.operator
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x18 pc=0x172c620]

goroutine 1 [running]:
github.com/openshift/origin/vendor/k8s.io/kubernetes/pkg/kubectl/explain.PrintModel(0x7ffe4bd9ba26, 0x8, 0xc423cc1600, 0x0, 0x0, 0x0, 0xc4219991e0, 0x15, 0xc4219b4d02, 0x2, ...)
	/builddir/build/BUILD/atomic-openshift-git-0.3953cf2/_output/local/go/src/github.com/openshift/origin/vendor/k8s.io/kubernetes/pkg/kubectl/explain/model_printer.go:146 +0xa0
github.com/openshift/origin/vendor/k8s.io/kubernetes/pkg/kubectl/explain.PrintModelDescription(0xc42192c810, 0x1, 0x1, 0x2cc9c00, 0xc4200ea008, 0x0, 0x0, 0xc4219991e0, 0x15, 0xc4219b4d02, ...)
	/builddir/build/BUILD/atomic-openshift-git-0.3953cf2/_output/local/go/src/github.com/openshift/origin/vendor/k8s.io/kubernetes/pkg/kubectl/explain/explain.go:68 +0x178
github.com/openshift/origin/vendor/k8s.io/kubernetes/pkg/kubectl/cmd.(*ExplainOptions).Run(0xc420351880, 0xc420f628c0, 0x1, 0x1, 0x0, 0x0)
	/builddir/build/BUILD/atomic-openshift-git-0.3953cf2/_output/local/go/src/github.com/openshift/origin/vendor/k8s.io/kubernetes/pkg/kubectl/cmd/explain.go:157 +0x27d
github.com/openshift/origin/vendor/k8s.io/kubernetes/pkg/kubectl/cmd.NewCmdExplain.func1(0xc4211e2000, 0xc420f628c0, 0x1, 0x1)
	/builddir/build/BUILD/atomic-openshift-git-0.3953cf2/_output/local/go/src/github.com/openshift/origin/vendor/k8s.io/kubernetes/pkg/kubectl/cmd/explain.go:85 +0xd7
github.com/openshift/origin/vendor/github.com/spf13/cobra.(*Command).execute(0xc4211e2000, 0xc420f62880, 0x1, 0x1, 0xc4211e2000, 0xc420f62880)
	/builddir/build/BUILD/atomic-openshift-git-0.3953cf2/_output/local/go/src/github.com/openshift/origin/vendor/github.com/spf13/cobra/command.go:760 +0x2c1
github.com/openshift/origin/vendor/github.com/spf13/cobra.(*Command).ExecuteC(0xc4211bc500, 0xc420cdfdf0, 0x131e739, 0xc42014a0e0)
	/builddir/build/BUILD/atomic-openshift-git-0.3953cf2/_output/local/go/src/github.com/openshift/origin/vendor/github.com/spf13/cobra/command.go:846 +0x30a
github.com/openshift/origin/vendor/github.com/spf13/cobra.(*Command).Execute(0xc4211bc500, 0x2, 0xc4211bc500)
	/builddir/build/BUILD/atomic-openshift-git-0.3953cf2/_output/local/go/src/github.com/openshift/origin/vendor/github.com/spf13/cobra/command.go:794 +0x2b
main.main()
	/builddir/build/BUILD/atomic-openshift-git-0.3953cf2/_output/local/go/src/github.com/openshift/origin/cmd/oc/oc.go:68 +0x554

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

$ oc get clusterversion 
NAME      VERSION     AVAILABLE   PROGRESSING   SINCE     STATUS
version   4.0.0-0.9   True        False         29h       Cluster version is 4.0.0-0.9

$ oc version
oc v4.0.0-0.79.0
kubernetes v1.11.0+d4cacc0
features: Basic-Auth GSSAPI Kerberos SPNEGO

Server https://api.wonderland.rhcee.support:6443
kubernetes v1.12.4+0ba401e



How reproducible: 100% of the time 


Steps to Reproduce:
1. oc explain ingresscontroller.operator

Actual results: SegFaults 

Expected results: Should explain the operator object


Additional info:

Comment 2 Maciej Szulik 2019-04-12 10:08:04 UTC

This was fixed in newer versions of oc and specific work related to which CRDs are missing in explain is tracked in https://bugzilla.redhat.com/show_bug.cgi?id=1688638.

*** This bug has been marked as a duplicate of bug 1688638 ***