forked from rook/rook
subhamkrai
2556e14780
this commit contains changes that are forced by latest controller-runtime version v0.19.0. Signed-off-by: subhamkrai <srai@redhat.com>
62 lines
2.1 KiB
Go
62 lines
2.1 KiB
Go
/*
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Copyright 2020 The Rook Authors. All rights reserved.
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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 kit for Kubernetes operators
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package k8sutil
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import (
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"k8s.io/apimachinery/pkg/fields"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/client-go/rest"
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"k8s.io/client-go/tools/cache"
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)
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// CustomResource is for creating a Kubernetes TPR/CRD
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type CustomResource struct {
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// Name of the custom resource
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Name string
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// Plural of the custom resource in plural
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Plural string
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// Group the custom resource belongs to
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Group string
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// Version which should be defined in a const above
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Version string
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// Kind is the serialized interface of the resource.
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Kind string
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// APIVersion is the full API version name (combine Group and Version)
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APIVersion string
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}
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// WatchCR begins watching the custom resource (CRD). The call will block until a Done signal is raised during in the context.
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// When the watch has detected a create, update, or delete event, it will handled by the functions in the resourceEventHandlers. After the callback returns, the watch loop will continue for the next event.
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// If the callback returns an error, the error will be logged.
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func WatchCR(resource CustomResource, namespace string, handlers cache.ResourceEventHandlerFuncs, client rest.Interface, objType runtime.Object, done <-chan struct{}) {
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source := cache.NewListWatchFromClient(
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client,
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resource.Plural,
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namespace,
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fields.Everything())
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_, controller := cache.NewInformerWithOptions(cache.InformerOptions{ListerWatcher: source, ObjectType: objType, ResyncPeriod: 0, Handler: handlers})
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go controller.Run(done)
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<-done
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}
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