The rebase conflicted on openapi exposure for CRDs. You can find the missing commits in https://docs.google.com/spreadsheets/d/1Kw_hFCjDms8Mj1Fax3lTBs6znjueo_escesSuwcd6NY/edit#gid=0
PR: https://github.com/openshift/origin/pull/22464
*** Bug 1688638 has been marked as a duplicate of this bug. ***
The current PR is https://github.com/openshift/origin/pull/22524
This merged, OpenAPI should be now published for CRD resources.
In env of payload that does not include above fix, e.g. 4.0.0-0.nightly-2019-04-10-182914: oc explain kubeapiservers error: Couldn't find resource for "operator.openshift.io/v1, Kind=KubeAPIServer" `oc get --raw /openapi/v2` does not contain content like in https://github.com/openshift/cluster-kube-apiserver-operator/blob/master/manifests/0000_10_kube-apiserver-operator_01_config.crd.yaml#L16 : While in env of 4.1.0-0.ci-2019-04-16-214239, above issues don't occur: oc explain kubeapiservers KIND: KubeAPIServer VERSION: operator.openshift.io/v1 DESCRIPTION: <empty> FIELDS: apiVersion <string> APIVersion defines the versioned schema of this representation of an ... `oc get --raw /openapi/v2` CONTAINS content like in https://github.com/openshift/cluster-kube-apiserver-operator/blob/master/manifests/0000_10_kube-apiserver-operator_01_config.crd.yaml#L16 So bug is fixed. But bug needs be verified with nightly payload instead of ci payload, thus will check again when working nightly payload is available depending on bug 1700504 solved.
Xingxing these are tracked in https://bugzilla.redhat.com/show_bug.cgi?id=1688638 feel free to add those that are missing there, still.
Verified in 4.1.0-0.nightly-2019-04-18-210657 .
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-2019:0758