704d13bfc8
There can be multiple DNS resource records for a given name. They can vary by type, ttl, rrdata and a number of various other parameters. It is incorrect to return a single resource record for a given name. This change updates the Get interface to return multiple records for a given name and uses this list in the federated service controller to perform DNS operations.
107 lines
3.0 KiB
Go
107 lines
3.0 KiB
Go
/*
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Copyright 2016 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 route53
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import (
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"github.com/aws/aws-sdk-go/aws"
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"github.com/aws/aws-sdk-go/service/route53"
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"k8s.io/kubernetes/federation/pkg/dnsprovider"
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"k8s.io/kubernetes/federation/pkg/dnsprovider/rrstype"
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)
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// Compile time check for interface adherence
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var _ dnsprovider.ResourceRecordSets = ResourceRecordSets{}
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type ResourceRecordSets struct {
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zone *Zone
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}
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func (rrsets ResourceRecordSets) List() ([]dnsprovider.ResourceRecordSet, error) {
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input := route53.ListResourceRecordSetsInput{
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HostedZoneId: rrsets.zone.impl.Id,
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}
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var list []dnsprovider.ResourceRecordSet
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err := rrsets.zone.zones.interface_.service.ListResourceRecordSetsPages(&input, func(page *route53.ListResourceRecordSetsOutput, lastPage bool) bool {
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for _, rrset := range page.ResourceRecordSets {
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list = append(list, &ResourceRecordSet{rrset, &rrsets})
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}
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return true
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})
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if err != nil {
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return nil, err
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}
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return list, nil
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}
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func (rrsets ResourceRecordSets) Get(name string) ([]dnsprovider.ResourceRecordSet, error) {
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// This list implementation is very similar to the one implemented in
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// the List() method above, but it restricts the retrieved list to
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// the records whose name match the given `name`.
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input := route53.ListResourceRecordSetsInput{
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HostedZoneId: rrsets.zone.impl.Id,
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StartRecordName: aws.String(name),
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}
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var list []dnsprovider.ResourceRecordSet
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err := rrsets.zone.zones.interface_.service.ListResourceRecordSetsPages(&input, func(page *route53.ListResourceRecordSetsOutput, lastPage bool) bool {
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for _, rrset := range page.ResourceRecordSets {
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if aws.StringValue(rrset.Name) != name {
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return false
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}
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list = append(list, &ResourceRecordSet{rrset, &rrsets})
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}
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return true
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})
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if err != nil {
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return nil, err
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}
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return list, nil
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}
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func (r ResourceRecordSets) StartChangeset() dnsprovider.ResourceRecordChangeset {
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return &ResourceRecordChangeset{
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zone: r.zone,
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rrsets: &r,
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}
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}
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func (r ResourceRecordSets) New(name string, rrdatas []string, ttl int64, rrstype rrstype.RrsType) dnsprovider.ResourceRecordSet {
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rrstypeStr := string(rrstype)
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rrs := &route53.ResourceRecordSet{
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Name: &name,
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Type: &rrstypeStr,
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TTL: &ttl,
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}
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for _, rrdata := range rrdatas {
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rrs.ResourceRecords = append(rrs.ResourceRecords, &route53.ResourceRecord{
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Value: aws.String(rrdata),
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})
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}
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return ResourceRecordSet{
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rrs,
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&r,
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}
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}
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// Zone returns the parent zone
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func (rrset ResourceRecordSets) Zone() dnsprovider.Zone {
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return rrset.zone
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}
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