27a77e0ef3
- These metadata can be used to handle controllers in a generic way. - This enables showing feature gated controllers in kube-controller-manager's help. - It is possible to obtain a controllerName in the InitFunc so it can be passed down to and used by the controller. metadata about a controller: - name - requiredFeatureGates - isDisabledByDefault - isCloudProviderController
63 lines
2.6 KiB
Go
63 lines
2.6 KiB
Go
/*
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Copyright 2023 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package app
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import (
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"context"
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apiextensionsscheme "k8s.io/apiextensions-apiserver/pkg/client/clientset/clientset/scheme"
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pluginvalidatingadmissionpolicy "k8s.io/apiserver/pkg/admission/plugin/validatingadmissionpolicy"
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"k8s.io/apiserver/pkg/cel/openapi/resolver"
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genericfeatures "k8s.io/apiserver/pkg/features"
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k8sscheme "k8s.io/client-go/kubernetes/scheme"
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"k8s.io/component-base/featuregate"
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"k8s.io/controller-manager/controller"
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"k8s.io/kubernetes/cmd/kube-controller-manager/names"
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"k8s.io/kubernetes/pkg/controller/validatingadmissionpolicystatus"
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"k8s.io/kubernetes/pkg/generated/openapi"
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)
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func newValidatingAdmissionPolicyStatusControllerDescriptor() *ControllerDescriptor {
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return &ControllerDescriptor{
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name: names.ValidatingAdmissionPolicyStatusController,
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initFunc: startValidatingAdmissionPolicyStatusController,
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requiredFeatureGates: []featuregate.Feature{
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genericfeatures.ValidatingAdmissionPolicy,
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},
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}
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}
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func startValidatingAdmissionPolicyStatusController(ctx context.Context, controllerContext ControllerContext, controllerName string) (controller.Interface, bool, error) {
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// KCM won't start the controller without the feature gate set.
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schemaResolver := resolver.NewDefinitionsSchemaResolver(openapi.GetOpenAPIDefinitions, k8sscheme.Scheme, apiextensionsscheme.Scheme).
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Combine(&resolver.ClientDiscoveryResolver{Discovery: controllerContext.ClientBuilder.DiscoveryClientOrDie(names.ValidatingAdmissionPolicyStatusController)})
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typeChecker := &pluginvalidatingadmissionpolicy.TypeChecker{
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SchemaResolver: schemaResolver,
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RestMapper: controllerContext.RESTMapper,
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}
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c, err := validatingadmissionpolicystatus.NewController(
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controllerContext.InformerFactory.Admissionregistration().V1beta1().ValidatingAdmissionPolicies(),
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controllerContext.ClientBuilder.ClientOrDie(names.ValidatingAdmissionPolicyStatusController).AdmissionregistrationV1beta1().ValidatingAdmissionPolicies(),
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typeChecker,
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)
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go c.Run(ctx, int(controllerContext.ComponentConfig.ValidatingAdmissionPolicyStatusController.ConcurrentPolicySyncs))
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return nil, true, err
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}
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