🐛 Add cross-version compatibility with client-go 1.27 #2223

howardjohn · 2023-03-03T18:04:24Z

I have manually verified this compiles with client-go 1.26 and 1.27, but I am not sure how to get test coverage of this; likely we will not be able to.

k8s-ci-robot · 2023-03-03T18:04:26Z

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lavalamp · 2023-03-03T18:22:29Z

pkg/cache/multi_namespace_cache.go

+			}
+		}
+	}
+	return true


seems like this will give a problematic answer with the old client?

I would expect an old client can never call this since they would see a type ResourceEventHandlerRegistration interface{} as the return type. Of course they could attempt to type-cast that and would always get true, but that seems pretty obscure?

I see, gotcha

lavalamp · 2023-03-03T18:29:55Z

pkg/cache/multi_namespace_cache.go

 	for ns, informer := range i.namespaceToInformer {
 		registration, err := informer.AddEventHandler(handler)
 		if err != nil {
 			return nil, err
 		}
-		handles[ns] = registration
+		handles.handles[ns] = registration


won't the multiple informers collide and overwrite the prior one's handle?

wait, there's a different informer per namespace? ok nvm, sorry.

lavalamp · 2023-03-03T18:37:07Z

pkg/controller/controllertest/util.go

+}
+
+func (e eventHandlerWrapper) OnAdd(obj interface{}) {
+	if m, ok := e.handler.(modernResourceEventHandler); ok {


clever, lol

pkg/internal/source/event_handler.go

lavalamp · 2023-03-03T18:38:54Z

LGTM but I'm not a reviewer here :)

howardjohn · 2023-03-09T17:38:59Z

/assign @alvaroaleman

alvaroaleman · 2023-03-11T19:32:17Z

pkg/controller/controllertest/util.go

+// eventHandlerWrapper wraps a ResourceEventHandler in a manner that is compatible with client-go 1.27+ and older.
+// The interface was changed in these versions.
+type eventHandlerWrapper struct {
+	handler any


Can we use generics to type this to one of the two interfaces?

I don't think so, or at least do not know how to. See golang/go#49054

alvaroaleman · 2023-03-11T19:44:00Z

pkg/cache/multi_namespace_cache.go

+
+// HasSynced asserts that the handler has been called for the full initial state of the informer.
+// This uses syncer to be compatible between client-go 1.27+ and older versions when the interface changed.
+func (h handlerRegistration) HasSynced() bool {


I think I am blind, where do we call this?

We don't call this, if allows the interface to be implemented on 0.27

Since they added this function

k8s-ci-robot · 2023-03-15T23:42:36Z

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Ref fix: kubernetes-sigs/controller-runtime#2223 vendor/sigs.k8s.io/controller-runtime/pkg/cache/multi_namespace_cache.go:308:9: cannot use handles (variable of type map[string]"k8s.io/client-go/tools/cache".ResourceEventHandlerRegistration) as "k8s.io/client-go/tools/cache".ResourceEventHandlerRegistration value in return statement: map[string]"k8s.io/client-go/tools/cache".ResourceEventHandlerRegistration does not implement "k8s.io/client-go/tools/cache".ResourceEventHandlerRegistration (missing method HasSynced) vendor/sigs.k8s.io/controller-runtime/pkg/cache/multi_namespace_cache.go:321:9: cannot use handles (variable of type map[string]"k8s.io/client-go/tools/cache".ResourceEventHandlerRegistration) as "k8s.io/client-go/tools/cache".ResourceEventHandlerRegistration value in return statement: map[string]"k8s.io/client-go/tools/cache".ResourceEventHandlerRegistration does not implement "k8s.io/client-go/tools/cache".ResourceEventHandlerRegistration (missing method HasSynced) vendor/sigs.k8s.io/controller-runtime/pkg/cache/multi_namespace_cache.go:326:17: impossible type assertion: h.(map[string]toolscache.ResourceEventHandlerRegistration) map[string]"k8s.io/client-go/tools/cache".ResourceEventHandlerRegistration does not implement "k8s.io/client-go/tools/cache".ResourceEventHandlerRegistration (missing method HasSynced) make: *** [vendor/github.com/openshift/build-machinery-go/make/targets/golang/build.mk:16: build] Error 1 Signed-off-by: Flavio Fernandes <[email protected]>

go get sigs.k8s.io/[email protected] go mod tidy go mod vendor Reference fix: kubernetes-sigs/controller-runtime#2223 to address the following build issue: vendor/sigs.k8s.io/controller-runtime/pkg/cache/multi_namespace_cache.go:308:9: cannot use handles (variable of type map[string]"k8s.io/client-go/tools/cache".ResourceEventHandlerRegistration) as "k8s.io/client-go/tools/cache".ResourceEventHandlerRegistration value in return statement: map[string]"k8s.io/client-go/tools/cache".ResourceEventHandlerRegistration does not implement "k8s.io/client-go/tools/cache".ResourceEventHandlerRegistration (missing method HasSynced) vendor/sigs.k8s.io/controller-runtime/pkg/cache/multi_namespace_cache.go:321:9: cannot use handles (variable of type map[string]"k8s.io/client-go/tools/cache".ResourceEventHandlerRegistration) as "k8s.io/client-go/tools/cache".ResourceEventHandlerRegistration value in return statement: map[string]"k8s.io/client-go/tools/cache".ResourceEventHandlerRegistration does not implement "k8s.io/client-go/tools/cache".ResourceEventHandlerRegistration (missing method HasSynced) vendor/sigs.k8s.io/controller-runtime/pkg/cache/multi_namespace_cache.go:326:17: impossible type assertion: h.(map[string]toolscache.ResourceEventHandlerRegistration) map[string]"k8s.io/client-go/tools/cache".ResourceEventHandlerRegistration does not implement "k8s.io/client-go/tools/cache".ResourceEventHandlerRegistration (missing method HasSynced) make: *** [vendor/github.com/openshift/build-machinery-go/make/targets/golang/build.mk:16: build] Error 1 Signed-off-by: Flavio Fernandes <[email protected]>

Updating k8s libs to v1.27.1 requires updating sigs.k8s.io/controller-runtime to an unreleased version with kubernetes-sigs/controller-runtime#2223 in place. This in turn requires some additional adjustments to changed APIs in the controller-runtime, mainly in operator/pkg/gateway-api. The service.kubernetes.io/topology-aware-hints annotation got deprecated with k8s 1.27 in favor of service.kubernetes.io/topology-mode (see kubernetes/kubernetes#116522). This change keeps support for the deprecated annotation. Support for the new annotation will be added in a successive commit. Signed-off-by: Nate Sweet <[email protected]>

Updating k8s libs to v1.27.2 requires updating sigs.k8s.io/controller-runtime to the 0.15 version with kubernetes-sigs/controller-runtime#2223 in place. This in turn requires some additional adjustments to changed APIs in the controller-runtime, mainly in operator/pkg/gateway-api. Specifically, around request methods and testing. The service.kubernetes.io/topology-aware-hints annotation got deprecated with k8s 1.27 in favor of service.kubernetes.io/topology-mode (see kubernetes/kubernetes#116522). This change keeps support for the deprecated annotation. Support for the new annotation will be added in a successive commit. Signed-off-by: Tobias Klauser <[email protected]> Signed-off-by: Nate Sweet <[email protected]>

k8s-ci-robot added do-not-merge/work-in-progress Indicates that a PR should not merge because it is a work in progress. cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. labels Mar 3, 2023

k8s-ci-robot requested review from varshaprasad96 and vincepri March 3, 2023 18:04

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pkg/internal/source/event_handler.go Show resolved Hide resolved

Add cross-version compatibility with client-go 1.27

13bba74

howardjohn marked this pull request as ready for review March 3, 2023 18:53

howardjohn force-pushed the client/1-27 branch from ccc77d3 to 13bba74 Compare March 3, 2023 18:53

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k8s-ci-robot requested a review from inteon March 3, 2023 18:53

howardjohn mentioned this pull request Mar 7, 2023

✨ upgrade to k8s 0.27.1 #2189

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k8s-ci-robot assigned alvaroaleman Mar 9, 2023

twz123 mentioned this pull request Mar 10, 2023

Bump Kubernetes to v1.27 k0sproject/k0s#2879

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k8s-ci-robot merged commit a26de2d into kubernetes-sigs:main Mar 15, 2023

cablunar mentioned this pull request May 15, 2023

Update external go packages to v0.27.1 lunarway/cluster-routing-controller#166

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sbueringer mentioned this pull request May 17, 2023

Consider stabilizing the API and moving to v1 and beyond #2327

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gcs278 mentioned this pull request May 17, 2023

OCPBUGS-13965: Bump vendors k8s libraries to 0.27.2 openshift/cluster-dns-operator#368

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flavio-fernandes mentioned this pull request May 17, 2023

[WIP] SDN-3901: CNO 4.14 kubernetes 1.27 openshift/cluster-network-operator#1806

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nathanjsweet mentioned this pull request May 22, 2023

Update k8s tests and libraries to v1.27.2 cilium/cilium#25602

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Huang-Wei mentioned this pull request Jul 26, 2023

controller-runtime version 0.14.X incompatible with client-go 0.27 kubernetes-sigs/scheduler-plugins#606

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ckadner mentioned this pull request Jan 24, 2024

chore: Update indirect dependency to knative.dev/serving v0.37.5 kserve/modelmesh-serving#468

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ysdongAmazon mentioned this pull request Mar 4, 2024

Bump helm.sh/helm/v3 from 3.11.3 to 3.14.2 aws/aws-app-mesh-controller-for-k8s#759

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Upgrade Kubernetes libs to v0.29.x. kubernetes-sigs/aws-load-balancer-controller#3675

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🐛 Add cross-version compatibility with client-go 1.27 #2223

🐛 Add cross-version compatibility with client-go 1.27 #2223

howardjohn commented Mar 3, 2023 •

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k8s-ci-robot commented Mar 15, 2023

🐛 Add cross-version compatibility with client-go 1.27 #2223

🐛 Add cross-version compatibility with client-go 1.27 #2223

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