mirror of
https://github.com/kubernetes-sigs/external-dns.git
synced 2025-08-06 17:46:57 +02:00
71723bdd5b
* Add RecordTTL * Route53: test for custom TTL * Fix tests * Fix remaining tests * Add ttl when endpoint is created from ingress * Missed a word * Fix bad refactoring * Add ingress custom TTL test * gofmt * Satisfy go-lint * Unshadow `endpoint` in azure provider * Fix and add an output test * Add TTL for endpoints generated from service templates * Take TTL into account when generating update plan * Tests for TTL change impact on the plan * Refactor factory method name * Refactoring * Run gofmt * Make endpoint string format look like BIND config * Update plan and plan_test * Replace NewEndpointWithTTLValue with NewEndpointWithTTL in aws * Remove NewEndpointWithTTLValue func * Update references to TTL * Remove getTTLValue func * Handle merge conflict * Update tests * Update README, CHANGELOG and documentation * Run gofmt * Move getTTLFromAnnotations to a common file * Refactor getTTLFromAnnotations * Gofmt * Add tests for getTTLFromAnnotations * Trigger build * Add boilerplate header * Update README/CHANGELOG according to code review * Add ttl.md and link it from README * change CNAME string to endpoint.RecordTypeCNAME * fix test cases with AWS ALIAS records, these do not behave different in these tests
788 lines
17 KiB
Go
788 lines
17 KiB
Go
/*
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Copyright 2017 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 source
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import (
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"net"
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"testing"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/client-go/kubernetes/fake"
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"k8s.io/client-go/pkg/api/v1"
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"github.com/kubernetes-incubator/external-dns/endpoint"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func TestServiceSource(t *testing.T) {
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t.Run("Interface", testServiceSourceImplementsSource)
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t.Run("NewServiceSource", testServiceSourceNewServiceSource)
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t.Run("Endpoints", testServiceSourceEndpoints)
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}
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// testServiceSourceImplementsSource tests that serviceSource is a valid Source.
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func testServiceSourceImplementsSource(t *testing.T) {
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assert.Implements(t, (*Source)(nil), new(serviceSource))
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}
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// testServiceSourceNewServiceSource tests that NewServiceSource doesn't return an error.
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func testServiceSourceNewServiceSource(t *testing.T) {
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for _, ti := range []struct {
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title string
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fqdnTemplate string
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expectError bool
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}{
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{
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title: "invalid template",
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expectError: true,
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fqdnTemplate: "{{.Name",
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},
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{
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title: "valid empty template",
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expectError: false,
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},
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{
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title: "valid template",
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expectError: false,
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fqdnTemplate: "{{.Name}}-{{.Namespace}}.ext-dns.test.com",
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},
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} {
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t.Run(ti.title, func(t *testing.T) {
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_, err := NewServiceSource(
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fake.NewSimpleClientset(),
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"",
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ti.fqdnTemplate,
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"",
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false,
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)
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if ti.expectError {
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assert.Error(t, err)
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} else {
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assert.NoError(t, err)
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}
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})
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}
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}
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// testServiceSourceEndpoints tests that various services generate the correct endpoints.
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func testServiceSourceEndpoints(t *testing.T) {
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for _, tc := range []struct {
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title string
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targetNamespace string
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svcNamespace string
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svcName string
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svcType v1.ServiceType
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compatibility string
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fqdnTemplate string
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labels map[string]string
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annotations map[string]string
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clusterIP string
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lbs []string
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expected []*endpoint.Endpoint
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expectError bool
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}{
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{
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"no annotated services return no endpoints",
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"",
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"testing",
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"foo",
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v1.ServiceTypeLoadBalancer,
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"",
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"",
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map[string]string{},
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map[string]string{},
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"",
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[]string{"1.2.3.4"},
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[]*endpoint.Endpoint{},
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false,
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},
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{
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"annotated services return an endpoint with target IP",
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"",
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"testing",
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"foo",
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v1.ServiceTypeLoadBalancer,
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"",
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"",
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map[string]string{},
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map[string]string{
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hostnameAnnotationKey: "foo.example.org.",
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},
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"",
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[]string{"1.2.3.4"},
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[]*endpoint.Endpoint{
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{DNSName: "foo.example.org", Target: "1.2.3.4"},
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},
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false,
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},
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{
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"annotated ClusterIp aren't processed without explicit authorization",
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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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map[string]string{},
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map[string]string{
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hostnameAnnotationKey: "foo.example.org.",
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},
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"1.2.3.4",
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[]string{},
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[]*endpoint.Endpoint{},
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false,
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},
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{
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"annotated services with multiple hostnames return an endpoint with target IP",
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"",
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"testing",
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"foo",
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v1.ServiceTypeLoadBalancer,
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"",
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"",
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map[string]string{},
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map[string]string{
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hostnameAnnotationKey: "foo.example.org., bar.example.org.",
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},
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"",
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[]string{"1.2.3.4"},
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[]*endpoint.Endpoint{
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{DNSName: "foo.example.org", Target: "1.2.3.4"},
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{DNSName: "bar.example.org", Target: "1.2.3.4"},
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},
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false,
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},
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{
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"annotated services with multiple hostnames and without trailing period return an endpoint with target IP",
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"",
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"testing",
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"foo",
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v1.ServiceTypeLoadBalancer,
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"",
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"",
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map[string]string{},
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map[string]string{
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hostnameAnnotationKey: "foo.example.org, bar.example.org",
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},
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"",
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[]string{"1.2.3.4"},
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[]*endpoint.Endpoint{
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{DNSName: "foo.example.org", Target: "1.2.3.4"},
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{DNSName: "bar.example.org", Target: "1.2.3.4"},
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},
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false,
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},
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{
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"annotated services return an endpoint with target hostname",
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"",
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"testing",
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"foo",
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v1.ServiceTypeLoadBalancer,
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"",
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"",
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map[string]string{},
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map[string]string{
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hostnameAnnotationKey: "foo.example.org.",
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},
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"",
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[]string{"lb.example.com"}, // Kubernetes omits the trailing dot
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[]*endpoint.Endpoint{
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{DNSName: "foo.example.org", Target: "lb.example.com"},
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},
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false,
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},
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{
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"annotated services can omit trailing dot",
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"",
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"testing",
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"foo",
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v1.ServiceTypeLoadBalancer,
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"",
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"",
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map[string]string{},
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map[string]string{
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hostnameAnnotationKey: "foo.example.org", // Trailing dot is omitted
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},
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"",
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[]string{"1.2.3.4", "lb.example.com"}, // Kubernetes omits the trailing dot
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[]*endpoint.Endpoint{
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{DNSName: "foo.example.org", Target: "1.2.3.4"},
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{DNSName: "foo.example.org", Target: "lb.example.com"},
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},
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false,
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},
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{
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"our controller type is dns-controller",
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"",
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"testing",
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"foo",
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v1.ServiceTypeLoadBalancer,
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"",
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"",
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map[string]string{},
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map[string]string{
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controllerAnnotationKey: controllerAnnotationValue,
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hostnameAnnotationKey: "foo.example.org.",
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},
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"",
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[]string{"1.2.3.4"},
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[]*endpoint.Endpoint{
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{DNSName: "foo.example.org", Target: "1.2.3.4"},
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},
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false,
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},
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{
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"different controller types are ignored even (with template specified)",
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"",
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"testing",
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"foo",
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v1.ServiceTypeLoadBalancer,
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"",
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"{{.Name}}.ext-dns.test.com",
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map[string]string{},
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map[string]string{
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controllerAnnotationKey: "some-other-tool",
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hostnameAnnotationKey: "foo.example.org.",
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},
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"",
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[]string{"1.2.3.4"},
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[]*endpoint.Endpoint{},
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false,
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},
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{
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"services are found in target namespace",
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"testing",
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"testing",
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"foo",
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v1.ServiceTypeLoadBalancer,
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"",
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"",
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map[string]string{},
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map[string]string{
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hostnameAnnotationKey: "foo.example.org.",
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},
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"",
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[]string{"1.2.3.4"},
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[]*endpoint.Endpoint{
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{DNSName: "foo.example.org", Target: "1.2.3.4"},
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},
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false,
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},
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{
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"services that are not in target namespace are ignored",
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"testing",
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"other-testing",
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"foo",
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v1.ServiceTypeLoadBalancer,
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"",
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"",
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map[string]string{},
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map[string]string{
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hostnameAnnotationKey: "foo.example.org.",
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},
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"",
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[]string{"1.2.3.4"},
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[]*endpoint.Endpoint{},
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false,
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},
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{
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"services are found in all namespaces",
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"",
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"other-testing",
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"foo",
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v1.ServiceTypeLoadBalancer,
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"",
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"",
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map[string]string{},
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map[string]string{
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hostnameAnnotationKey: "foo.example.org.",
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},
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"",
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[]string{"1.2.3.4"},
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[]*endpoint.Endpoint{
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{DNSName: "foo.example.org", Target: "1.2.3.4"},
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},
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false,
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},
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{
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"no external entrypoints return no endpoints",
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"",
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"testing",
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"foo",
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v1.ServiceTypeLoadBalancer,
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"",
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"",
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map[string]string{},
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map[string]string{
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hostnameAnnotationKey: "foo.example.org.",
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},
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"",
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[]string{},
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[]*endpoint.Endpoint{},
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false,
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},
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{
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"multiple external entrypoints return multiple endpoints",
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"",
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"testing",
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"foo",
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v1.ServiceTypeLoadBalancer,
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"",
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"",
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map[string]string{},
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map[string]string{
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hostnameAnnotationKey: "foo.example.org.",
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},
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"",
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[]string{"1.2.3.4", "8.8.8.8"},
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[]*endpoint.Endpoint{
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{DNSName: "foo.example.org", Target: "1.2.3.4"},
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{DNSName: "foo.example.org", Target: "8.8.8.8"},
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},
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false,
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},
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{
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"services annotated with legacy mate annotations are ignored in default mode",
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"",
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"testing",
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"foo",
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v1.ServiceTypeLoadBalancer,
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"",
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"",
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map[string]string{},
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map[string]string{
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"zalando.org/dnsname": "foo.example.org.",
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},
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"",
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[]string{"1.2.3.4"},
|
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[]*endpoint.Endpoint{},
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false,
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},
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{
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"services annotated with legacy mate annotations return an endpoint in compatibility mode",
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"",
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"testing",
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"foo",
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v1.ServiceTypeLoadBalancer,
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"mate",
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"",
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map[string]string{},
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map[string]string{
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"zalando.org/dnsname": "foo.example.org.",
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},
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"",
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[]string{"1.2.3.4"},
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[]*endpoint.Endpoint{
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{DNSName: "foo.example.org", Target: "1.2.3.4"},
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},
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false,
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},
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{
|
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"services annotated with legacy molecule annotations return an endpoint in compatibility mode",
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"",
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"testing",
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"foo",
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v1.ServiceTypeLoadBalancer,
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"molecule",
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"",
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map[string]string{
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"dns": "route53",
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},
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map[string]string{
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"domainName": "foo.example.org., bar.example.org",
|
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},
|
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"",
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[]string{"1.2.3.4"},
|
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[]*endpoint.Endpoint{
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{DNSName: "foo.example.org", Target: "1.2.3.4"},
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{DNSName: "bar.example.org", Target: "1.2.3.4"},
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},
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false,
|
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},
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{
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"not annotated services with set fqdnTemplate return an endpoint with target IP",
|
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"",
|
|
"testing",
|
|
"foo",
|
|
v1.ServiceTypeLoadBalancer,
|
|
"",
|
|
"{{.Name}}.bar.example.com",
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map[string]string{},
|
|
map[string]string{},
|
|
"",
|
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[]string{"1.2.3.4", "elb.com"},
|
|
[]*endpoint.Endpoint{
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{DNSName: "foo.bar.example.com", Target: "1.2.3.4"},
|
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{DNSName: "foo.bar.example.com", Target: "elb.com"},
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},
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false,
|
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},
|
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{
|
|
"annotated services with set fqdnTemplate annotation takes precedence",
|
|
"",
|
|
"testing",
|
|
"foo",
|
|
v1.ServiceTypeLoadBalancer,
|
|
"",
|
|
"{{.Name}}.bar.example.com",
|
|
map[string]string{},
|
|
map[string]string{
|
|
hostnameAnnotationKey: "foo.example.org.",
|
|
},
|
|
"",
|
|
[]string{"1.2.3.4", "elb.com"},
|
|
[]*endpoint.Endpoint{
|
|
{DNSName: "foo.example.org", Target: "1.2.3.4"},
|
|
{DNSName: "foo.example.org", Target: "elb.com"},
|
|
},
|
|
false,
|
|
},
|
|
{
|
|
"compatibility annotated services with tmpl. compatibility takes precedence",
|
|
"",
|
|
"testing",
|
|
"foo",
|
|
v1.ServiceTypeLoadBalancer,
|
|
"mate",
|
|
"{{.Name}}.bar.example.com",
|
|
map[string]string{},
|
|
map[string]string{
|
|
"zalando.org/dnsname": "mate.example.org.",
|
|
},
|
|
"",
|
|
[]string{"1.2.3.4"},
|
|
[]*endpoint.Endpoint{
|
|
{DNSName: "mate.example.org", Target: "1.2.3.4"},
|
|
},
|
|
false,
|
|
},
|
|
{
|
|
"not annotated services with unknown tmpl field should not return anything",
|
|
"",
|
|
"testing",
|
|
"foo",
|
|
v1.ServiceTypeLoadBalancer,
|
|
"",
|
|
"{{.Calibre}}.bar.example.com",
|
|
map[string]string{},
|
|
map[string]string{},
|
|
"",
|
|
[]string{"1.2.3.4"},
|
|
[]*endpoint.Endpoint{},
|
|
true,
|
|
},
|
|
{
|
|
"ttl not annotated should have RecordTTL.IsConfigured set to false",
|
|
"",
|
|
"testing",
|
|
"foo",
|
|
v1.ServiceTypeLoadBalancer,
|
|
"",
|
|
"",
|
|
map[string]string{},
|
|
map[string]string{
|
|
hostnameAnnotationKey: "foo.example.org.",
|
|
},
|
|
"",
|
|
[]string{"1.2.3.4"},
|
|
[]*endpoint.Endpoint{
|
|
{DNSName: "foo.example.org", Target: "1.2.3.4", RecordTTL: endpoint.TTL(0)},
|
|
},
|
|
false,
|
|
},
|
|
{
|
|
"ttl annotated but invalid should have RecordTTL.IsConfigured set to false",
|
|
"",
|
|
"testing",
|
|
"foo",
|
|
v1.ServiceTypeLoadBalancer,
|
|
"",
|
|
"",
|
|
map[string]string{},
|
|
map[string]string{
|
|
hostnameAnnotationKey: "foo.example.org.",
|
|
ttlAnnotationKey: "foo",
|
|
},
|
|
"",
|
|
[]string{"1.2.3.4"},
|
|
[]*endpoint.Endpoint{
|
|
{DNSName: "foo.example.org", Target: "1.2.3.4", RecordTTL: endpoint.TTL(0)},
|
|
},
|
|
false,
|
|
},
|
|
{
|
|
"ttl annotated and is valid should set Record.TTL",
|
|
"",
|
|
"testing",
|
|
"foo",
|
|
v1.ServiceTypeLoadBalancer,
|
|
"",
|
|
"",
|
|
map[string]string{},
|
|
map[string]string{
|
|
hostnameAnnotationKey: "foo.example.org.",
|
|
ttlAnnotationKey: "10",
|
|
},
|
|
"",
|
|
[]string{"1.2.3.4"},
|
|
[]*endpoint.Endpoint{
|
|
{DNSName: "foo.example.org", Target: "1.2.3.4", RecordTTL: endpoint.TTL(10)},
|
|
},
|
|
false,
|
|
},
|
|
{
|
|
"Negative ttl is not valid",
|
|
"",
|
|
"testing",
|
|
"foo",
|
|
v1.ServiceTypeLoadBalancer,
|
|
"",
|
|
"",
|
|
map[string]string{},
|
|
map[string]string{
|
|
hostnameAnnotationKey: "foo.example.org.",
|
|
ttlAnnotationKey: "-10",
|
|
},
|
|
"",
|
|
[]string{"1.2.3.4"},
|
|
[]*endpoint.Endpoint{
|
|
{DNSName: "foo.example.org", Target: "1.2.3.4", RecordTTL: endpoint.TTL(0)},
|
|
},
|
|
false,
|
|
},
|
|
} {
|
|
t.Run(tc.title, func(t *testing.T) {
|
|
// Create a Kubernetes testing client
|
|
kubernetes := fake.NewSimpleClientset()
|
|
|
|
// Create a service to test against
|
|
ingresses := []v1.LoadBalancerIngress{}
|
|
for _, lb := range tc.lbs {
|
|
if net.ParseIP(lb) != nil {
|
|
ingresses = append(ingresses, v1.LoadBalancerIngress{IP: lb})
|
|
} else {
|
|
ingresses = append(ingresses, v1.LoadBalancerIngress{Hostname: lb})
|
|
}
|
|
}
|
|
|
|
service := &v1.Service{
|
|
Spec: v1.ServiceSpec{
|
|
Type: tc.svcType,
|
|
ClusterIP: tc.clusterIP,
|
|
},
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Namespace: tc.svcNamespace,
|
|
Name: tc.svcName,
|
|
Labels: tc.labels,
|
|
Annotations: tc.annotations,
|
|
},
|
|
Status: v1.ServiceStatus{
|
|
LoadBalancer: v1.LoadBalancerStatus{
|
|
Ingress: ingresses,
|
|
},
|
|
},
|
|
}
|
|
|
|
_, err := kubernetes.CoreV1().Services(service.Namespace).Create(service)
|
|
require.NoError(t, err)
|
|
|
|
// Create our object under test and get the endpoints.
|
|
client, _ := NewServiceSource(
|
|
kubernetes,
|
|
tc.targetNamespace,
|
|
tc.fqdnTemplate,
|
|
tc.compatibility,
|
|
false,
|
|
)
|
|
require.NoError(t, err)
|
|
|
|
endpoints, err := client.Endpoints()
|
|
if tc.expectError {
|
|
require.Error(t, err)
|
|
} else {
|
|
require.NoError(t, err)
|
|
}
|
|
|
|
// Validate returned endpoints against desired endpoints.
|
|
validateEndpoints(t, endpoints, tc.expected)
|
|
})
|
|
}
|
|
}
|
|
|
|
// testServiceSourceEndpoints tests that various services generate the correct endpoints.
|
|
func TestClusterIpServices(t *testing.T) {
|
|
for _, tc := range []struct {
|
|
title string
|
|
targetNamespace string
|
|
svcNamespace string
|
|
svcName string
|
|
svcType v1.ServiceType
|
|
compatibility string
|
|
fqdnTemplate string
|
|
labels map[string]string
|
|
annotations map[string]string
|
|
clusterIP string
|
|
lbs []string
|
|
expected []*endpoint.Endpoint
|
|
expectError bool
|
|
}{
|
|
{
|
|
"annotated ClusterIp services return an endpoint with Cluster IP",
|
|
"",
|
|
"testing",
|
|
"foo",
|
|
v1.ServiceTypeClusterIP,
|
|
"",
|
|
"",
|
|
map[string]string{},
|
|
map[string]string{
|
|
hostnameAnnotationKey: "foo.example.org.",
|
|
},
|
|
"1.2.3.4",
|
|
[]string{},
|
|
[]*endpoint.Endpoint{
|
|
{DNSName: "foo.example.org", Target: "1.2.3.4"},
|
|
},
|
|
false,
|
|
},
|
|
{
|
|
"non-annotated ClusterIp services with set fqdnTemplate return an endpoint with target IP",
|
|
"",
|
|
"testing",
|
|
"foo",
|
|
v1.ServiceTypeClusterIP,
|
|
"",
|
|
"{{.Name}}.bar.example.com",
|
|
map[string]string{},
|
|
map[string]string{},
|
|
"4.5.6.7",
|
|
[]string{},
|
|
[]*endpoint.Endpoint{
|
|
{DNSName: "foo.bar.example.com", Target: "4.5.6.7"},
|
|
},
|
|
false,
|
|
},
|
|
{
|
|
"Headless services do not generate endpoints",
|
|
"",
|
|
"testing",
|
|
"foo",
|
|
v1.ServiceTypeClusterIP,
|
|
"",
|
|
"",
|
|
map[string]string{},
|
|
map[string]string{},
|
|
v1.ClusterIPNone,
|
|
[]string{},
|
|
[]*endpoint.Endpoint{},
|
|
false,
|
|
},
|
|
} {
|
|
t.Run(tc.title, func(t *testing.T) {
|
|
// Create a Kubernetes testing client
|
|
kubernetes := fake.NewSimpleClientset()
|
|
|
|
// Create a service to test against
|
|
ingresses := []v1.LoadBalancerIngress{}
|
|
for _, lb := range tc.lbs {
|
|
if net.ParseIP(lb) != nil {
|
|
ingresses = append(ingresses, v1.LoadBalancerIngress{IP: lb})
|
|
} else {
|
|
ingresses = append(ingresses, v1.LoadBalancerIngress{Hostname: lb})
|
|
}
|
|
}
|
|
|
|
service := &v1.Service{
|
|
Spec: v1.ServiceSpec{
|
|
Type: tc.svcType,
|
|
ClusterIP: tc.clusterIP,
|
|
},
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Namespace: tc.svcNamespace,
|
|
Name: tc.svcName,
|
|
Labels: tc.labels,
|
|
Annotations: tc.annotations,
|
|
},
|
|
Status: v1.ServiceStatus{
|
|
LoadBalancer: v1.LoadBalancerStatus{
|
|
Ingress: ingresses,
|
|
},
|
|
},
|
|
}
|
|
|
|
_, err := kubernetes.CoreV1().Services(service.Namespace).Create(service)
|
|
require.NoError(t, err)
|
|
|
|
// Create our object under test and get the endpoints.
|
|
client, _ := NewServiceSource(
|
|
kubernetes,
|
|
tc.targetNamespace,
|
|
tc.fqdnTemplate,
|
|
tc.compatibility,
|
|
true,
|
|
)
|
|
require.NoError(t, err)
|
|
|
|
endpoints, err := client.Endpoints()
|
|
if tc.expectError {
|
|
require.Error(t, err)
|
|
} else {
|
|
require.NoError(t, err)
|
|
}
|
|
|
|
// Validate returned endpoints against desired endpoints.
|
|
validateEndpoints(t, endpoints, tc.expected)
|
|
})
|
|
}
|
|
}
|
|
|
|
func BenchmarkServiceEndpoints(b *testing.B) {
|
|
kubernetes := fake.NewSimpleClientset()
|
|
|
|
service := &v1.Service{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Namespace: "testing",
|
|
Name: "foo",
|
|
Annotations: map[string]string{
|
|
hostnameAnnotationKey: "foo.example.org.",
|
|
},
|
|
},
|
|
Status: v1.ServiceStatus{
|
|
LoadBalancer: v1.LoadBalancerStatus{
|
|
Ingress: []v1.LoadBalancerIngress{
|
|
{IP: "1.2.3.4"},
|
|
{IP: "8.8.8.8"},
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
_, err := kubernetes.CoreV1().Services(service.Namespace).Create(service)
|
|
require.NoError(b, err)
|
|
|
|
client, err := NewServiceSource(kubernetes, v1.NamespaceAll, "", "", false)
|
|
require.NoError(b, err)
|
|
|
|
for i := 0; i < b.N; i++ {
|
|
_, err := client.Endpoints()
|
|
require.NoError(b, err)
|
|
}
|
|
}
|