Bug 1954481 - 4.8 lacks v1alpha1 flowschema support, WAS: Unable to apply (flowcontrol.apiserver.k8s.io/v1alpha1, Kind=FlowSchema) /openshift-sdn due to missing related FlowSchema
Summary: 4.8 lacks v1alpha1 flowschema support, WAS: Unable to apply (flowcontrol.apis...
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: OpenShift Container Platform
Classification: Red Hat
Component: kube-apiserver
Version: 4.8
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
: 4.8.0
Assignee: Maciej Szulik
QA Contact: Ke Wang
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-04-28 08:51 UTC by Stefan Schimanski
Modified: 2021-04-28 13:26 UTC (History)
6 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of: 1954420
Environment:
Last Closed: 2021-04-28 13:26:40 UTC
Target Upstream Version:
Embargoed:

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Comment 1 Stefan Schimanski 2021-04-28 08:52:04 UTC 
Compare https://bugzilla.redhat.com/show_bug.cgi?id=1913399#c1 where we described our plan to keep v1alpha1 support in 4.8 for smooth upgrades.
Comment 2 Maciej Szulik 2021-04-28 13:26:40 UTC 
flowcontrol.apiserver.k8s.io/v1alpha1 API was deprecated in k8s 1.20 (OCP 4.7) with replacement v1beta1 available [1].
In k8s 1.21 (OCP 4.8) that API is entirely removed and can't be easily turned back due to the mechanisms implemented 
upstream disabling removed API. 

[1] https://github.com/kubernetes/kubernetes/blob/release-1.21/staging/src/k8s.io/api/flowcontrol/v1alpha1/types.go#L63-L66
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