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provider.go
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provider.go
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package gcp
import (
"context"
"net/http"
"google.golang.org/api/googleapi"
configv1 "github.com/openshift/api/config/v1"
iov1 "github.com/openshift/api/operatoringress/v1"
"github.com/openshift/cluster-ingress-operator/pkg/dns"
gdnsv1 "google.golang.org/api/dns/v1"
"google.golang.org/api/option"
)
var (
_ dns.Provider = &Provider{}
)
type Provider struct {
// config is required input.
config Config
// dnsService provides DNS API access.
dnsService *gdnsv1.Service
}
type Config struct {
Project string
UserAgent string
CredentialsJSON []byte
}
func New(config Config) (*Provider, error) {
dnsService, err := gdnsv1.NewService(context.TODO(), option.WithCredentialsJSON(config.CredentialsJSON), option.WithUserAgent(config.UserAgent))
if err != nil {
return nil, err
}
provider := &Provider{
config: config,
dnsService: dnsService,
}
return provider, nil
}
func (p *Provider) Ensure(record *iov1.DNSRecord, zone configv1.DNSZone) error {
change := &gdnsv1.Change{Additions: []*gdnsv1.ResourceRecordSet{resourceRecordSet(record)}}
call := p.dnsService.Changes.Create(p.config.Project, zone.ID, change)
_, err := call.Do()
// Since we don't yet handle updates, assume that existing records are correct.
if ae, ok := err.(*googleapi.Error); ok && ae.Code == http.StatusConflict {
return nil
}
return err
}
func (p *Provider) Delete(record *iov1.DNSRecord, zone configv1.DNSZone) error {
change := &gdnsv1.Change{Deletions: []*gdnsv1.ResourceRecordSet{resourceRecordSet(record)}}
call := p.dnsService.Changes.Create(p.config.Project, zone.ID, change)
_, err := call.Do()
if ae, ok := err.(*googleapi.Error); ok && ae.Code == http.StatusNotFound {
return nil
}
return err
}
func resourceRecordSet(record *iov1.DNSRecord) *gdnsv1.ResourceRecordSet {
return &gdnsv1.ResourceRecordSet{
Name: record.Spec.DNSName,
Rrdatas: record.Spec.Targets,
Type: string(record.Spec.RecordType),
Ttl: record.Spec.RecordTTL,
}
}