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https://github.com/kubernetes-sigs/external-dns.git
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fab942f486
The controller will retrieve all the endpoints at the beginning of its loop. When changes need to be applied, the provider may need to query the endpoints again. Allow the provider to skip the queries if its data was cached.
48 lines
1.7 KiB
Go
48 lines
1.7 KiB
Go
/*
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Copyright 2017 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 registry
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import (
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"context"
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"github.com/kubernetes-incubator/external-dns/endpoint"
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"github.com/kubernetes-incubator/external-dns/plan"
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log "github.com/sirupsen/logrus"
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)
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// Registry is an interface which should enables ownership concept in external-dns
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// Records() returns ALL records registered with DNS provider
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// each entry includes owner information
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// ApplyChanges(changes *plan.Changes) propagates the changes to the DNS Provider API and correspondingly updates ownership depending on type of registry being used
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type Registry interface {
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Records() ([]*endpoint.Endpoint, error)
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ApplyChanges(ctx context.Context, changes *plan.Changes) error
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}
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//TODO(ideahitme): consider moving this to Plan
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func filterOwnedRecords(ownerID string, eps []*endpoint.Endpoint) []*endpoint.Endpoint {
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filtered := []*endpoint.Endpoint{}
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for _, ep := range eps {
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if endpointOwner, ok := ep.Labels[endpoint.OwnerLabelKey]; !ok || endpointOwner != ownerID {
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log.Debugf(`Skipping endpoint %v because owner id does not match, found: "%s", required: "%s"`, ep, endpointOwner, ownerID)
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continue
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}
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filtered = append(filtered, ep)
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}
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return filtered
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}
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