mirror of https://github.com/knative/pkg.git
53 lines
1.5 KiB
Go
53 lines
1.5 KiB
Go
/*
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Copyright 2019 The Knative 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 job
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import (
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"context"
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batchv1 "k8s.io/client-go/informers/batch/v1"
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"github.com/knative/pkg/controller"
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"github.com/knative/pkg/injection"
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"github.com/knative/pkg/injection/informers/kubeinformers/factory"
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"github.com/knative/pkg/logging"
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)
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func init() {
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injection.Default.RegisterInformer(withInformer)
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}
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// Key is used as the key for associating information
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// with a context.Context.
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type Key struct{}
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func withInformer(ctx context.Context) (context.Context, controller.Informer) {
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f := factory.Get(ctx)
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inf := f.Batch().V1().Jobs()
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return context.WithValue(ctx, Key{}, inf), inf.Informer()
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}
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// Get extracts the Kubernetes Job informer from the context.
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func Get(ctx context.Context) batchv1.JobInformer {
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untyped := ctx.Value(Key{})
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if untyped == nil {
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logging.FromContext(ctx).Panicf(
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"Unable to fetch %T from context.", (batchv1.JobInformer)(nil))
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}
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return untyped.(batchv1.JobInformer)
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}
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