mirror of
https://github.com/kubernetes-sigs/external-dns.git
synced 2025-08-06 17:46:57 +02:00
Merge pull request #3600 from johngmyers/ipv6-headless
Support AAAA records from headless services
This commit is contained in:
Kubernetes Prow Robot
GitHub
commit
fd501ddd7c
@ -271,7 +271,7 @@ func (sc *serviceSource) extractHeadlessEndpoints(svc *v1.Service, hostname stri
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endpointsType := getEndpointsTypeFromAnnotations(svc.Annotations)
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targetsByHeadlessDomain := make(map[string]endpoint.Targets)
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targetsByHeadlessDomainAndType := make(map[endpointKey]endpoint.Targets)
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for _, subset := range endpointsObject.Subsets {
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addresses := subset.Addresses
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if svc.Spec.PublishNotReadyAddresses || sc.alwaysPublishNotReadyAddresses {
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@ -324,18 +324,29 @@ func (sc *serviceSource) extractHeadlessEndpoints(svc *v1.Service, hostname stri
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log.Debugf("Generating matching endpoint %s with EndpointAddress IP %s", headlessDomain, address.IP)
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}
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}
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targetsByHeadlessDomain[headlessDomain] = append(targetsByHeadlessDomain[headlessDomain], targets...)
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for _, target := range targets {
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key := endpointKey{
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dnsName: headlessDomain,
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recordType: suitableType(target),
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}
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targetsByHeadlessDomainAndType[key] = append(targetsByHeadlessDomainAndType[key], target)
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}
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}
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}
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}
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headlessDomains := []string{}
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for headlessDomain := range targetsByHeadlessDomain {
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headlessDomains = append(headlessDomains, headlessDomain)
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headlessKeys := []endpointKey{}
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for headlessKey := range targetsByHeadlessDomainAndType {
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headlessKeys = append(headlessKeys, headlessKey)
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}
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sort.Strings(headlessDomains)
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for _, headlessDomain := range headlessDomains {
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allTargets := targetsByHeadlessDomain[headlessDomain]
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sort.Slice(headlessKeys, func(i, j int) bool {
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if headlessKeys[i].dnsName != headlessKeys[j].dnsName {
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return headlessKeys[i].dnsName < headlessKeys[j].dnsName
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}
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return headlessKeys[i].recordType < headlessKeys[j].recordType
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})
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for _, headlessKey := range headlessKeys {
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allTargets := targetsByHeadlessDomainAndType[headlessKey]
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targets := []string{}
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deduppedTargets := map[string]struct{}{}
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@ -350,9 +361,9 @@ func (sc *serviceSource) extractHeadlessEndpoints(svc *v1.Service, hostname stri
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}
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if ttl.IsConfigured() {
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endpoints = append(endpoints, endpoint.NewEndpointWithTTL(headlessDomain, endpoint.RecordTypeA, ttl, targets...))
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endpoints = append(endpoints, endpoint.NewEndpointWithTTL(headlessKey.dnsName, headlessKey.recordType, ttl, targets...))
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} else {
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endpoints = append(endpoints, endpoint.NewEndpoint(headlessDomain, endpoint.RecordTypeA, targets...))
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endpoints = append(endpoints, endpoint.NewEndpoint(headlessKey.dnsName, headlessKey.recordType, targets...))
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}
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}
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@ -2244,7 +2244,7 @@ func TestHeadlessServices(t *testing.T) {
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expectError bool
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}{
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{
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"annotated Headless services return endpoints for each selected Pod",
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"annotated Headless services return IPv4 endpoints for each selected Pod",
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"",
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"testing",
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"foo",
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@ -2276,6 +2276,39 @@ func TestHeadlessServices(t *testing.T) {
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},
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false,
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},
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{
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"annotated Headless services return IPv6 endpoints for each selected Pod",
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"",
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"testing",
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"foo",
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v1.ServiceTypeClusterIP,
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"",
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"",
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false,
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map[string]string{"component": "foo"},
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map[string]string{
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hostnameAnnotationKey: "service.example.org",
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},
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map[string]string{},
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v1.ClusterIPNone,
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[]string{"2001:db8::1", "2001:db8::2"},
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[]string{"", ""},
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map[string]string{
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"component": "foo",
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},
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[]string{},
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[]string{"foo-0", "foo-1"},
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[]string{"foo-0", "foo-1"},
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[]bool{true, true},
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false,
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[]v1.Node{},
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[]*endpoint.Endpoint{
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{DNSName: "foo-0.service.example.org", RecordType: endpoint.RecordTypeAAAA, Targets: endpoint.Targets{"2001:db8::1"}},
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{DNSName: "foo-1.service.example.org", RecordType: endpoint.RecordTypeAAAA, Targets: endpoint.Targets{"2001:db8::2"}},
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{DNSName: "service.example.org", RecordType: endpoint.RecordTypeAAAA, Targets: endpoint.Targets{"2001:db8::1", "2001:db8::2"}},
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},
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false,
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},
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{
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"hostname annotated Headless services are ignored",
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"",
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@ -2306,7 +2339,7 @@ func TestHeadlessServices(t *testing.T) {
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false,
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},
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{
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"annotated Headless services return endpoints with TTL for each selected Pod",
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"annotated Headless services return IPv4 endpoints with TTL for each selected Pod",
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"",
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"testing",
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"foo",
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@ -2339,6 +2372,40 @@ func TestHeadlessServices(t *testing.T) {
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},
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false,
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},
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{
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"annotated Headless services return IPv6 endpoints with TTL for each selected Pod",
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"",
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"testing",
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"foo",
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v1.ServiceTypeClusterIP,
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"",
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"",
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false,
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map[string]string{"component": "foo"},
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map[string]string{
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hostnameAnnotationKey: "service.example.org",
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ttlAnnotationKey: "1",
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},
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map[string]string{},
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v1.ClusterIPNone,
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[]string{"2001:db8::1", "2001:db8::2"},
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[]string{"", ""},
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map[string]string{
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"component": "foo",
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},
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[]string{},
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[]string{"foo-0", "foo-1"},
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[]string{"foo-0", "foo-1"},
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[]bool{true, true},
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false,
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[]v1.Node{},
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[]*endpoint.Endpoint{
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{DNSName: "foo-0.service.example.org", RecordType: endpoint.RecordTypeAAAA, Targets: endpoint.Targets{"2001:db8::1"}, RecordTTL: endpoint.TTL(1)},
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{DNSName: "foo-1.service.example.org", RecordType: endpoint.RecordTypeAAAA, Targets: endpoint.Targets{"2001:db8::2"}, RecordTTL: endpoint.TTL(1)},
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{DNSName: "service.example.org", RecordType: endpoint.RecordTypeAAAA, Targets: endpoint.Targets{"2001:db8::1", "2001:db8::2"}, RecordTTL: endpoint.TTL(1)},
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},
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false,
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},
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{
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"annotated Headless services return endpoints for each selected Pod, which are in running state",
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"",
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@ -2436,7 +2503,7 @@ func TestHeadlessServices(t *testing.T) {
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false,
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},
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{
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"annotated Headless services return only a unique set of targets",
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"annotated Headless services return only a unique set of IPv4 targets",
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"",
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"testing",
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"foo",
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@ -2467,7 +2534,38 @@ func TestHeadlessServices(t *testing.T) {
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false,
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},
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{
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"annotated Headless services return targets from pod annotation",
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"annotated Headless services return only a unique set of IPv6 targets",
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"",
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"testing",
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"foo",
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v1.ServiceTypeClusterIP,
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"",
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"",
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false,
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map[string]string{"component": "foo"},
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map[string]string{
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hostnameAnnotationKey: "service.example.org",
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},
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map[string]string{},
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v1.ClusterIPNone,
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[]string{"2001:db8::1", "2001:db8::1", "2001:db8::2"},
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[]string{"", "", ""},
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map[string]string{
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"component": "foo",
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},
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[]string{},
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[]string{"foo-0", "foo-1", "foo-3"},
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[]string{"", "", ""},
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[]bool{true, true, true},
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false,
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[]v1.Node{},
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[]*endpoint.Endpoint{
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{DNSName: "service.example.org", RecordType: endpoint.RecordTypeAAAA, Targets: endpoint.Targets{"2001:db8::1", "2001:db8::2"}},
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},
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false,
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},
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{
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"annotated Headless services return IPv4 targets from pod annotation",
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"",
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"testing",
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"foo",
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@ -2500,7 +2598,40 @@ func TestHeadlessServices(t *testing.T) {
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false,
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},
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{
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"annotated Headless services return targets from node external IP if endpoints-type annotation is set",
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"annotated Headless services return IPv6 targets from pod annotation",
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"",
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"testing",
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"foo",
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v1.ServiceTypeClusterIP,
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"",
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"",
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false,
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map[string]string{"component": "foo"},
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map[string]string{
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hostnameAnnotationKey: "service.example.org",
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},
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map[string]string{
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targetAnnotationKey: "2001:db8::4",
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},
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v1.ClusterIPNone,
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[]string{"2001:db8::1"},
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[]string{""},
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map[string]string{
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"component": "foo",
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},
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[]string{},
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[]string{"foo"},
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[]string{"", "", ""},
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[]bool{true, true, true},
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false,
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[]v1.Node{},
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[]*endpoint.Endpoint{
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{DNSName: "service.example.org", RecordType: endpoint.RecordTypeAAAA, Targets: endpoint.Targets{"2001:db8::4"}},
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},
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false,
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},
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{
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"annotated Headless services return IPv4 targets from node external IP if endpoints-type annotation is set",
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"",
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"testing",
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"foo",
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@ -2543,7 +2674,98 @@ func TestHeadlessServices(t *testing.T) {
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false,
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},
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{
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"annotated Headless services return targets from hostIP if endpoints-type annotation is set",
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"annotated Headless services return IPv6 targets from node external IP if endpoints-type annotation is set",
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"",
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"testing",
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"foo",
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v1.ServiceTypeClusterIP,
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"",
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"",
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false,
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map[string]string{"component": "foo"},
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map[string]string{
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hostnameAnnotationKey: "service.example.org",
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endpointsTypeAnnotationKey: EndpointsTypeNodeExternalIP,
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},
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map[string]string{},
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v1.ClusterIPNone,
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[]string{"2001:db8::1"},
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[]string{""},
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map[string]string{
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"component": "foo",
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},
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[]string{},
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[]string{"foo"},
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[]string{"", "", ""},
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[]bool{true, true, true},
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false,
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[]v1.Node{
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{
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Status: v1.NodeStatus{
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Addresses: []v1.NodeAddress{
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{
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Type: v1.NodeInternalIP,
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Address: "2001:db8::4",
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},
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},
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},
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},
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},
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[]*endpoint.Endpoint{
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{DNSName: "service.example.org", RecordType: endpoint.RecordTypeAAAA, Targets: endpoint.Targets{"2001:db8::4"}},
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},
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false,
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},
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{
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"annotated Headless services return dual-stack targets from node external IP if endpoints-type annotation is set",
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"",
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"testing",
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"foo",
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v1.ServiceTypeClusterIP,
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"",
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"",
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false,
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map[string]string{"component": "foo"},
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map[string]string{
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hostnameAnnotationKey: "service.example.org",
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endpointsTypeAnnotationKey: EndpointsTypeNodeExternalIP,
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},
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map[string]string{},
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v1.ClusterIPNone,
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[]string{"1.1.1.1"},
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[]string{""},
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map[string]string{
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"component": "foo",
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},
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[]string{},
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[]string{"foo"},
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[]string{"", "", ""},
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[]bool{true, true, true},
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false,
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[]v1.Node{
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{
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Status: v1.NodeStatus{
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Addresses: []v1.NodeAddress{
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{
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Type: v1.NodeExternalIP,
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Address: "1.2.3.4",
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},
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{
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Type: v1.NodeInternalIP,
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Address: "2001:db8::4",
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},
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},
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},
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},
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},
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[]*endpoint.Endpoint{
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{DNSName: "service.example.org", RecordType: endpoint.RecordTypeA, Targets: endpoint.Targets{"1.2.3.4"}},
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{DNSName: "service.example.org", RecordType: endpoint.RecordTypeAAAA, Targets: endpoint.Targets{"2001:db8::4"}},
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},
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false,
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},
|
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{
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"annotated Headless services return IPv4 targets from hostIP if endpoints-type annotation is set",
|
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"",
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"testing",
|
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"foo",
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@ -2574,6 +2796,38 @@ func TestHeadlessServices(t *testing.T) {
|
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},
|
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false,
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},
|
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{
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"annotated Headless services return IPv6 targets from hostIP if endpoints-type annotation is set",
|
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"",
|
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"testing",
|
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"foo",
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v1.ServiceTypeClusterIP,
|
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"",
|
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"",
|
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false,
|
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map[string]string{"component": "foo"},
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map[string]string{
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hostnameAnnotationKey: "service.example.org",
|
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endpointsTypeAnnotationKey: EndpointsTypeHostIP,
|
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},
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map[string]string{},
|
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v1.ClusterIPNone,
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[]string{"2001:db8::1"},
|
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[]string{"2001:db8::4"},
|
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map[string]string{
|
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"component": "foo",
|
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},
|
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[]string{},
|
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[]string{"foo"},
|
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[]string{"", "", ""},
|
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[]bool{true, true, true},
|
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false,
|
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[]v1.Node{},
|
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[]*endpoint.Endpoint{
|
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{DNSName: "service.example.org", RecordType: endpoint.RecordTypeAAAA, Targets: endpoint.Targets{"2001:db8::4"}},
|
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},
|
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false,
|
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},
|
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} {
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tc := tc
|
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t.Run(tc.title, func(t *testing.T) {
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@ -2716,7 +2970,7 @@ func TestHeadlessServicesHostIP(t *testing.T) {
|
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expectError bool
|
||||
}{
|
||||
{
|
||||
"annotated Headless services return endpoints for each selected Pod",
|
||||
"annotated Headless services return IPv4 endpoints for each selected Pod",
|
||||
"",
|
||||
"testing",
|
||||
"foo",
|
||||
@ -2749,6 +3003,40 @@ func TestHeadlessServicesHostIP(t *testing.T) {
|
||||
},
|
||||
false,
|
||||
},
|
||||
{
|
||||
"annotated Headless services return IPv6 endpoints for each selected Pod",
|
||||
"",
|
||||
"testing",
|
||||
"foo",
|
||||
v1.ServiceTypeClusterIP,
|
||||
"",
|
||||
"",
|
||||
false,
|
||||
map[string]string{"component": "foo"},
|
||||
map[string]string{
|
||||
hostnameAnnotationKey: "service.example.org",
|
||||
},
|
||||
v1.ClusterIPNone,
|
||||
[]string{"2001:db8::1", "2001:db8::2"},
|
||||
map[string]string{
|
||||
"component": "foo",
|
||||
},
|
||||
[]string{},
|
||||
[]string{"foo-0", "foo-1"},
|
||||
[]string{"foo-0", "foo-1"},
|
||||
[]bool{true, true},
|
||||
[]*v1.ObjectReference{
|
||||
{APIVersion: "", Kind: "Pod", Name: "foo-0"},
|
||||
{APIVersion: "", Kind: "Pod", Name: "foo-1"},
|
||||
},
|
||||
false,
|
||||
[]*endpoint.Endpoint{
|
||||
{DNSName: "foo-0.service.example.org", RecordType: endpoint.RecordTypeAAAA, Targets: endpoint.Targets{"2001:db8::1"}},
|
||||
{DNSName: "foo-1.service.example.org", RecordType: endpoint.RecordTypeAAAA, Targets: endpoint.Targets{"2001:db8::2"}},
|
||||
{DNSName: "service.example.org", RecordType: endpoint.RecordTypeAAAA, Targets: endpoint.Targets{"2001:db8::1", "2001:db8::2"}},
|
||||
},
|
||||
false,
|
||||
},
|
||||
{
|
||||
"hostname annotated Headless services are ignored",
|
||||
"",
|
||||
@ -2780,7 +3068,7 @@ func TestHeadlessServicesHostIP(t *testing.T) {
|
||||
false,
|
||||
},
|
||||
{
|
||||
"annotated Headless services return endpoints with TTL for each selected Pod",
|
||||
"annotated Headless services return IPv4 endpoints with TTL for each selected Pod",
|
||||
"",
|
||||
"testing",
|
||||
"foo",
|
||||
@ -2814,6 +3102,41 @@ func TestHeadlessServicesHostIP(t *testing.T) {
|
||||
},
|
||||
false,
|
||||
},
|
||||
{
|
||||
"annotated Headless services return IPv6 endpoints with TTL for each selected Pod",
|
||||
"",
|
||||
"testing",
|
||||
"foo",
|
||||
v1.ServiceTypeClusterIP,
|
||||
"",
|
||||
"",
|
||||
false,
|
||||
map[string]string{"component": "foo"},
|
||||
map[string]string{
|
||||
hostnameAnnotationKey: "service.example.org",
|
||||
ttlAnnotationKey: "1",
|
||||
},
|
||||
v1.ClusterIPNone,
|
||||
[]string{"2001:db8::1", "2001:db8::2"},
|
||||
map[string]string{
|
||||
"component": "foo",
|
||||
},
|
||||
[]string{},
|
||||
[]string{"foo-0", "foo-1"},
|
||||
[]string{"foo-0", "foo-1"},
|
||||
[]bool{true, true},
|
||||
[]*v1.ObjectReference{
|
||||
{APIVersion: "", Kind: "Pod", Name: "foo-0"},
|
||||
{APIVersion: "", Kind: "Pod", Name: "foo-1"},
|
||||
},
|
||||
false,
|
||||
[]*endpoint.Endpoint{
|
||||
{DNSName: "foo-0.service.example.org", RecordType: endpoint.RecordTypeAAAA, Targets: endpoint.Targets{"2001:db8::1"}, RecordTTL: endpoint.TTL(1)},
|
||||
{DNSName: "foo-1.service.example.org", RecordType: endpoint.RecordTypeAAAA, Targets: endpoint.Targets{"2001:db8::2"}, RecordTTL: endpoint.TTL(1)},
|
||||
{DNSName: "service.example.org", RecordType: endpoint.RecordTypeAAAA, Targets: endpoint.Targets{"2001:db8::1", "2001:db8::2"}, RecordTTL: endpoint.TTL(1)},
|
||||
},
|
||||
false,
|
||||
},
|
||||
{
|
||||
"annotated Headless services return endpoints for each selected Pod, which are in running state",
|
||||
"",
|
||||
@ -2882,7 +3205,7 @@ func TestHeadlessServicesHostIP(t *testing.T) {
|
||||
false,
|
||||
},
|
||||
{
|
||||
"annotated Headless services return endpoints for pods missing hostname",
|
||||
"annotated Headless services return IPv4 endpoints for pods missing hostname",
|
||||
"",
|
||||
"testing",
|
||||
"foo",
|
||||
@ -2913,6 +3236,38 @@ func TestHeadlessServicesHostIP(t *testing.T) {
|
||||
},
|
||||
false,
|
||||
},
|
||||
{
|
||||
"annotated Headless services return IPv6 endpoints for pods missing hostname",
|
||||
"",
|
||||
"testing",
|
||||
"foo",
|
||||
v1.ServiceTypeClusterIP,
|
||||
"",
|
||||
"",
|
||||
false,
|
||||
map[string]string{"component": "foo"},
|
||||
map[string]string{
|
||||
hostnameAnnotationKey: "service.example.org",
|
||||
},
|
||||
v1.ClusterIPNone,
|
||||
[]string{"2001:db8::1", "2001:db8::2"},
|
||||
map[string]string{
|
||||
"component": "foo",
|
||||
},
|
||||
[]string{},
|
||||
[]string{"foo-0", "foo-1"},
|
||||
[]string{"", ""},
|
||||
[]bool{true, true},
|
||||
[]*v1.ObjectReference{
|
||||
{APIVersion: "", Kind: "Pod", Name: "foo-0"},
|
||||
{APIVersion: "", Kind: "Pod", Name: "foo-1"},
|
||||
},
|
||||
false,
|
||||
[]*endpoint.Endpoint{
|
||||
{DNSName: "service.example.org", RecordType: endpoint.RecordTypeAAAA, Targets: endpoint.Targets{"2001:db8::1", "2001:db8::2"}},
|
||||
},
|
||||
false,
|
||||
},
|
||||
{
|
||||
"annotated Headless services without a targetRef has no endpoints",
|
||||
"",
|
||||
@ -3066,7 +3421,7 @@ func TestExternalServices(t *testing.T) {
|
||||
expectError bool
|
||||
}{
|
||||
{
|
||||
"external services return an A endpoint for the external name that is an IP address",
|
||||
"external services return an A endpoint for the external name that is an IPv4 address",
|
||||
"",
|
||||
"testing",
|
||||
"foo",
|
||||
@ -3084,6 +3439,25 @@ func TestExternalServices(t *testing.T) {
|
||||
},
|
||||
false,
|
||||
},
|
||||
{
|
||||
"external services return an AAAA endpoint for the external name that is an IPv6 address",
|
||||
"",
|
||||
"testing",
|
||||
"foo",
|
||||
v1.ServiceTypeExternalName,
|
||||
"",
|
||||
"",
|
||||
false,
|
||||
map[string]string{"component": "foo"},
|
||||
map[string]string{
|
||||
hostnameAnnotationKey: "service.example.org",
|
||||
},
|
||||
"2001:db8::111",
|
||||
[]*endpoint.Endpoint{
|
||||
{DNSName: "service.example.org", Targets: endpoint.Targets{"2001:db8::111"}, RecordType: endpoint.RecordTypeAAAA},
|
||||
},
|
||||
false,
|
||||
},
|
||||
{
|
||||
"external services return a CNAME endpoint for the external name that is a domain",
|
||||
"",
|
||||
|
||||
Loading…
Reference in New Issue
Block a user