mirror of
https://github.com/kubernetes-sigs/external-dns.git
synced 2025-08-06 01:26:59 +02:00
58 lines
1.7 KiB
Go
58 lines
1.7 KiB
Go
/*
|
|
Copyright 2017 The Kubernetes Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package source
|
|
|
|
import (
|
|
"k8s.io/client-go/pkg/api/v1"
|
|
|
|
"github.com/kubernetes-incubator/external-dns/endpoint"
|
|
)
|
|
|
|
const (
|
|
mateAnnotationKey = "zalando.org/dnsname"
|
|
)
|
|
|
|
// legacyEndpointsFromService tries to retrieve Endpoints from Services
|
|
// annotated with legacy annotations.
|
|
func legacyEndpointsFromService(svc *v1.Service) []*endpoint.Endpoint {
|
|
return legacyEndpointsFromMateService(svc)
|
|
}
|
|
|
|
// legacyEndpointsFromMateService tries to retrieve Endpoints from Services
|
|
// annotated with Mate's annotation semantics.
|
|
func legacyEndpointsFromMateService(svc *v1.Service) []*endpoint.Endpoint {
|
|
var endpoints []*endpoint.Endpoint
|
|
|
|
// Get the desired hostname of the service from the annotation.
|
|
hostname, exists := svc.Annotations[mateAnnotationKey]
|
|
if !exists {
|
|
return nil
|
|
}
|
|
|
|
// Create a corresponding endpoint for each configured external entrypoint.
|
|
for _, lb := range svc.Status.LoadBalancer.Ingress {
|
|
if lb.IP != "" {
|
|
endpoints = append(endpoints, endpoint.NewEndpoint(hostname, lb.IP))
|
|
}
|
|
if lb.Hostname != "" {
|
|
endpoints = append(endpoints, endpoint.NewEndpoint(hostname, lb.Hostname))
|
|
}
|
|
}
|
|
|
|
return endpoints
|
|
}
|