mirror of
https://github.com/kubernetes-sigs/external-dns.git
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6efca134f5
This requires pinning grpc for now as istio client-go otherwise pulls in breaking changes.
40 lines
1.1 KiB
Go
40 lines
1.1 KiB
Go
/*
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Copyright 2019 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 source
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import (
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"context"
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"sigs.k8s.io/external-dns/endpoint"
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)
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// emptySource is a Source that returns no endpoints.
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type emptySource struct{}
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func (e *emptySource) AddEventHandler(ctx context.Context, handler func()) {
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}
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// Endpoints collects endpoints of all nested Sources and returns them in a single slice.
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func (e *emptySource) Endpoints(ctx context.Context) ([]*endpoint.Endpoint, error) {
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return []*endpoint.Endpoint{}, nil
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}
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// NewEmptySource creates a new emptySource.
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func NewEmptySource() Source {
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return &emptySource{}
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}
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