func createRoute53Delete(r53Api *route53.Route53, s serviceStatus) (*route53.ChangeResourceRecordSetsInput, error) {
domainParts := strings.Split(s.dnsName, ".")
segments := len(domainParts)
tld := strings.Join(domainParts[segments-2:], ".")
subdomain := strings.Join(domainParts[:segments-2], ".")
listHostedZoneInput := route53.ListHostedZonesByNameInput{
DNSName: &tld,
}
hzOut, err := r53Api.ListHostedZonesByName(&listHostedZoneInput)
if err != nil {
glog.Warningf("No zone found for %s: %v", tld, err)
return nil, err
}
zones := hzOut.HostedZones
if len(zones) < 1 {
glog.Warningf("No zone found for %s", tld)
return nil, err
}
// The AWS API may return more than one zone, the first zone should be the relevant one
tldWithDot := fmt.Sprint(tld, ".")
if *zones[0].Name != tldWithDot {
glog.Warningf("Zone found %s does not match tld given %s", *zones[0].Name, tld)
return nil, err
}
zoneId := *zones[0].ID
zoneParts := strings.Split(zoneId, "/")
zoneId = zoneParts[len(zoneParts)-1]
at := route53.AliasTarget{
DNSName: &s.lb.Hostname,
EvaluateTargetHealth: aws.Boolean(false),
HostedZoneID: &s.hzId,
}
rrs := route53.ResourceRecordSet{
AliasTarget: &at,
Name: &s.dnsName,
Type: aws.String("A"),
}
change := route53.Change{
Action: aws.String("DELETE"),
ResourceRecordSet: &rrs,
}
batch := route53.ChangeBatch{
Changes: []*route53.Change{&change},
Comment: aws.String("Kubernetes Update to Service"),
}
crrsInput := route53.ChangeResourceRecordSetsInput{
ChangeBatch: &batch,
HostedZoneID: &zoneId,
}
glog.Infof("Created dns delete record set: tld=%s, subdomain=%s, zoneId=%s", tld, subdomain, zoneId)
return &crrsInput, nil
}
func getHostedZone(service *route53.Route53, domain string) (*route53.HostedZone, error) {
params := &route53.ListHostedZonesByNameInput{
DNSName: aws.String(domain),
MaxItems: aws.String("1"),
}
resp, err := service.ListHostedZonesByName(params)
if err != nil {
return nil, err
}
zone := resp.HostedZones[0]
return zone, nil
}
func getHostedZoneID(fqdn string, client *route53.Route53) (string, error) {
authZone, err := acme.FindZoneByFqdn(fqdn, acme.RecursiveNameservers)
if err != nil {
return "", err
}
// .DNSName should not have a trailing dot
reqParams := &route53.ListHostedZonesByNameInput{
DNSName: aws.String(acme.UnFqdn(authZone)),
}
resp, err := client.ListHostedZonesByName(reqParams)
if err != nil {
return "", err
}
var hostedZoneID string
for _, hostedZone := range resp.HostedZones {
// .Name has a trailing dot
if !*hostedZone.Config.PrivateZone && *hostedZone.Name == authZone {
hostedZoneID = *hostedZone.Id
break
}
}
if len(hostedZoneID) == 0 {
return "", fmt.Errorf("Zone %s not found in Route 53 for domain %s", authZone, fqdn)
}
if strings.HasPrefix(hostedZoneID, "/hostedzone/") {
hostedZoneID = strings.TrimPrefix(hostedZoneID, "/hostedzone/")
}
return hostedZoneID, nil
}
func upsertRecordOnRoute53(ipAddress string, fqdn string, svc *route53.Route53, verbose bool) {
// Extract the domain from the fully qualified domain name
r, _ := regexp.Compile("^([^\x2E]*)\x2E(.*)$")
toks := r.FindStringSubmatch(fqdn)
domain := toks[2]
// http://docs.aws.amazon.com/sdk-for-go/api/service/route53/Route53.html#ListHostedZonesByName-instance_method
resources, err := svc.ListHostedZonesByName(&route53.ListHostedZonesByNameInput{
DNSName: aws.String(domain + "."),
MaxItems: aws.String("1"),
})
if err != nil {
fmt.Println("ERR: err.Error()", err)
os.Exit(1)
}
if len(resources.HostedZones) != 1 {
fmt.Printf("ERR: Could not find the domain %s\n", domain)
os.Exit(1)
}
if *resources.DNSName != domain+"." {
fmt.Printf("ERR: Could not find the domain %s - %s \n", domain, *resources.DNSName)
os.Exit(1)
}
zoneIDToks := strings.Split(*resources.HostedZones[0].Id, "/")
zoneID := zoneIDToks[len(zoneIDToks)-1]
resp, err := svc.ListResourceRecordSets(&route53.ListResourceRecordSetsInput{
StartRecordName: aws.String(fqdn),
StartRecordType: aws.String("A"),
HostedZoneId: aws.String(zoneID),
MaxItems: aws.String("1"),
})
if err != nil {
fmt.Println(err.Error())
os.Exit(1)
}
var foundResource bool
if len(resp.ResourceRecordSets) != 1 {
foundResource = false
} else {
foundResource = *resp.ResourceRecordSets[0].Name == fqdn+"."
if foundResource {
for _, record := range resp.ResourceRecordSets[0].ResourceRecords {
if *record.Value == ipAddress {
if verbose {
fmt.Printf("INFO: %s already registered in route53 as %s\n", ipAddress, fqdn)
}
return
}
}
}
}
// Make an A-record:
resourceRecordSet := &route53.ResourceRecordSet{
Name: aws.String(fqdn + "."),
Type: aws.String("A"),
ResourceRecords: []*route53.ResourceRecord{
&route53.ResourceRecord{
Value: aws.String(ipAddress),
},
},
TTL: aws.Int64(300),
}
// Wrap it as an UPSERT
upsert := []*route53.Change{&route53.Change{
Action: aws.String("UPSERT"),
ResourceRecordSet: resourceRecordSet,
}}
// Put it into a pretty envelope with a stamp for route53#zoneId and change ticket
params := route53.ChangeResourceRecordSetsInput{
ChangeBatch: &route53.ChangeBatch{
Changes: upsert,
},
HostedZoneId: aws.String(zoneID),
}
// Post it
changeResp, err := svc.ChangeResourceRecordSets(¶ms)
if err != nil {
fmt.Println("ERR: ", err.Error(), changeResp)
os.Exit(1)
}
// Done
if verbose {
fmt.Printf("INFO: Submitted change for zoneId %s to register %s as %s\n", zoneID, ipAddress, fqdn)
}
}
func createRoute53Upsert(r53Api *route53.Route53, elbApi *elb.ELB, domain string, hn string) (*route53.ChangeResourceRecordSetsInput, error) {
domainParts := strings.Split(domain, ".")
segments := len(domainParts)
tld := strings.Join(domainParts[segments-2:], ".")
// subdomain := strings.Join(domainParts[:segments-2], ".")
elbName := strings.Split(hn, "-")[0]
lbInput := &elb.DescribeLoadBalancersInput{
LoadBalancerNames: []*string{
&elbName,
},
}
resp, err := elbApi.DescribeLoadBalancers(lbInput)
if err != nil {
glog.Warningf("Could not describe load balancer: %v", err)
return nil, err
}
descs := resp.LoadBalancerDescriptions
if len(descs) < 1 {
glog.Warningf("No lb found for %s: %v", tld, err)
return nil, err
}
if len(descs) > 1 {
glog.Warningf("Multiple lbs found for %s: %v", tld, err)
return nil, err
}
hzId := descs[0].CanonicalHostedZoneNameID
listHostedZoneInput := route53.ListHostedZonesByNameInput{
DNSName: &tld,
}
hzOut, err := r53Api.ListHostedZonesByName(&listHostedZoneInput)
if err != nil {
glog.Warningf("No zone found for %s: %v", tld, err)
return nil, err
}
zones := hzOut.HostedZones
if len(zones) < 1 {
glog.Warningf("No zone found for %s", tld)
return nil, err
}
// The AWS API may return more than one zone, the first zone should be the relevant one
tldWithDot := fmt.Sprint(tld, ".")
if *zones[0].Name != tldWithDot {
glog.Warningf("Zone found %s does not match tld given %s", *zones[0].Name, tld)
return nil, err
}
zoneId := *zones[0].ID
zoneParts := strings.Split(zoneId, "/")
zoneId = zoneParts[len(zoneParts)-1]
at := route53.AliasTarget{
DNSName: &hn,
EvaluateTargetHealth: aws.Boolean(false),
HostedZoneID: hzId,
}
rrs := route53.ResourceRecordSet{
AliasTarget: &at,
Name: &domain,
Type: aws.String("A"),
}
change := route53.Change{
Action: aws.String("UPSERT"),
ResourceRecordSet: &rrs,
}
batch := route53.ChangeBatch{
Changes: []*route53.Change{&change},
Comment: aws.String("Kubernetes Update to Service"),
}
crrsInput := route53.ChangeResourceRecordSetsInput{
ChangeBatch: &batch,
HostedZoneID: &zoneId,
}
//glog.Infof("Created dns record set: tld=%s, subdomain=%s, zoneId=%s", tld, subdomain, zoneId)
return &crrsInput, nil
}
