mirror of
https://github.com/kubernetes-sigs/external-dns.git
synced 2025-08-06 09:36:58 +02:00
ec07f45c8e
* Make suitableType() be Endpoint method With this change it becomes possible to work with endpoint of empty type in packages other than "provider". Also it seems logical for a smart property getter without side effects to be a method rather than a function in different package * Make plan computation work correctly with multi-target domains * fix drawing * drop comments * fix boilerplate header * fix comment * fix the bug with empty map * rework registry to support random lables * serialize->serializeLabel function rename * golint for err variable naming * add additional test * add tests for current case where one resource can generate multiple endpoints * make labels have its own type, add serialization as a method * add comment for exported error * use greater rather than not equal zero * update changelog
1119 lines
25 KiB
Go
1119 lines
25 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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"github.com/stretchr/testify/suite"
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)
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type ServiceSuite struct {
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suite.Suite
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sc Source
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fooWithTargets *v1.Service
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}
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func (suite *ServiceSuite) SetupTest() {
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fakeClient := fake.NewSimpleClientset()
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var err error
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suite.sc, err = NewServiceSource(
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fakeClient,
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"",
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"",
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"{{.Name}}",
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"",
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false,
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)
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suite.fooWithTargets = &v1.Service{
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Spec: v1.ServiceSpec{
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Type: v1.ServiceTypeLoadBalancer,
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},
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ObjectMeta: metav1.ObjectMeta{
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Namespace: "default",
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Name: "foo-with-targets",
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Annotations: map[string]string{},
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},
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Status: v1.ServiceStatus{
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LoadBalancer: v1.LoadBalancerStatus{
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Ingress: []v1.LoadBalancerIngress{
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{IP: "8.8.8.8"},
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{Hostname: "foo"},
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},
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},
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},
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}
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suite.NoError(err, "should initialize service source")
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_, err = fakeClient.CoreV1().Services(suite.fooWithTargets.Namespace).Create(suite.fooWithTargets)
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suite.NoError(err, "should successfully create service")
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}
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func (suite *ServiceSuite) TestResourceLabelIsSet() {
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endpoints, _ := suite.sc.Endpoints()
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for _, ep := range endpoints {
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suite.Equal("service/default/foo-with-targets", ep.Labels[endpoint.ResourceLabelKey], "should set correct resource label")
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}
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}
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func TestServiceSource(t *testing.T) {
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suite.Run(t, new(ServiceSuite))
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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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annotationFilter 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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title: "non-empty annotation filter label",
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expectError: false,
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annotationFilter: "kubernetes.io/ingress.class=nginx",
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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.annotationFilter,
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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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annotationFilter 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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"",
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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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"",
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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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"",
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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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"",
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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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"",
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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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"",
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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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"",
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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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"",
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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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"",
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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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"",
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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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"",
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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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"",
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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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"valid matching annotation filter expression",
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"",
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"service.beta.kubernetes.io/external-traffic in (Global, OnlyLocal)",
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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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"service.beta.kubernetes.io/external-traffic": "OnlyLocal",
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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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"valid non-matching annotation filter expression",
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"",
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"service.beta.kubernetes.io/external-traffic in (Global, OnlyLocal)",
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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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"service.beta.kubernetes.io/external-traffic": "SomethingElse",
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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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"invalid annotation filter expression",
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"",
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"service.beta.kubernetes.io/external-traffic in (Global OnlyLocal)",
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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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"service.beta.kubernetes.io/external-traffic": "OnlyLocal",
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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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true,
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},
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{
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"valid matching annotation filter label",
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"",
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|
"service.beta.kubernetes.io/external-traffic=Global",
|
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"testing",
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|
"foo",
|
|
v1.ServiceTypeLoadBalancer,
|
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"",
|
|
"",
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map[string]string{},
|
|
map[string]string{
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hostnameAnnotationKey: "foo.example.org.",
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"service.beta.kubernetes.io/external-traffic": "Global",
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},
|
|
"",
|
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[]string{"1.2.3.4"},
|
|
[]*endpoint.Endpoint{
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{DNSName: "foo.example.org", Target: "1.2.3.4"},
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},
|
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false,
|
|
},
|
|
{
|
|
"valid non-matching annotation filter label",
|
|
"",
|
|
"service.beta.kubernetes.io/external-traffic=Global",
|
|
"testing",
|
|
"foo",
|
|
v1.ServiceTypeLoadBalancer,
|
|
"",
|
|
"",
|
|
map[string]string{},
|
|
map[string]string{
|
|
hostnameAnnotationKey: "foo.example.org.",
|
|
"service.beta.kubernetes.io/external-traffic": "OnlyLocal",
|
|
},
|
|
"",
|
|
[]string{"1.2.3.4"},
|
|
[]*endpoint.Endpoint{},
|
|
false,
|
|
},
|
|
{
|
|
"no external entrypoints return no endpoints",
|
|
"",
|
|
"",
|
|
"testing",
|
|
"foo",
|
|
v1.ServiceTypeLoadBalancer,
|
|
"",
|
|
"",
|
|
map[string]string{},
|
|
map[string]string{
|
|
hostnameAnnotationKey: "foo.example.org.",
|
|
},
|
|
"",
|
|
[]string{},
|
|
[]*endpoint.Endpoint{},
|
|
false,
|
|
},
|
|
{
|
|
"multiple external entrypoints return multiple endpoints",
|
|
"",
|
|
"",
|
|
"testing",
|
|
"foo",
|
|
v1.ServiceTypeLoadBalancer,
|
|
"",
|
|
"",
|
|
map[string]string{},
|
|
map[string]string{
|
|
hostnameAnnotationKey: "foo.example.org.",
|
|
},
|
|
"",
|
|
[]string{"1.2.3.4", "8.8.8.8"},
|
|
[]*endpoint.Endpoint{
|
|
{DNSName: "foo.example.org", Target: "1.2.3.4"},
|
|
{DNSName: "foo.example.org", Target: "8.8.8.8"},
|
|
},
|
|
false,
|
|
},
|
|
{
|
|
"services annotated with legacy mate annotations are ignored in default mode",
|
|
"",
|
|
"",
|
|
"testing",
|
|
"foo",
|
|
v1.ServiceTypeLoadBalancer,
|
|
"",
|
|
"",
|
|
map[string]string{},
|
|
map[string]string{
|
|
"zalando.org/dnsname": "foo.example.org.",
|
|
},
|
|
"",
|
|
[]string{"1.2.3.4"},
|
|
[]*endpoint.Endpoint{},
|
|
false,
|
|
},
|
|
{
|
|
"services annotated with legacy mate annotations return an endpoint in compatibility mode",
|
|
"",
|
|
"",
|
|
"testing",
|
|
"foo",
|
|
v1.ServiceTypeLoadBalancer,
|
|
"mate",
|
|
"",
|
|
map[string]string{},
|
|
map[string]string{
|
|
"zalando.org/dnsname": "foo.example.org.",
|
|
},
|
|
"",
|
|
[]string{"1.2.3.4"},
|
|
[]*endpoint.Endpoint{
|
|
{DNSName: "foo.example.org", Target: "1.2.3.4"},
|
|
},
|
|
false,
|
|
},
|
|
{
|
|
"services annotated with legacy molecule annotations return an endpoint in compatibility mode",
|
|
"",
|
|
"",
|
|
"testing",
|
|
"foo",
|
|
v1.ServiceTypeLoadBalancer,
|
|
"molecule",
|
|
"",
|
|
map[string]string{
|
|
"dns": "route53",
|
|
},
|
|
map[string]string{
|
|
"domainName": "foo.example.org., bar.example.org",
|
|
},
|
|
"",
|
|
[]string{"1.2.3.4"},
|
|
[]*endpoint.Endpoint{
|
|
{DNSName: "foo.example.org", Target: "1.2.3.4"},
|
|
{DNSName: "bar.example.org", Target: "1.2.3.4"},
|
|
},
|
|
false,
|
|
},
|
|
{
|
|
"not annotated services with set fqdnTemplate return an endpoint with target IP",
|
|
"",
|
|
"",
|
|
"testing",
|
|
"foo",
|
|
v1.ServiceTypeLoadBalancer,
|
|
"",
|
|
"{{.Name}}.bar.example.com",
|
|
map[string]string{},
|
|
map[string]string{},
|
|
"",
|
|
[]string{"1.2.3.4", "elb.com"},
|
|
[]*endpoint.Endpoint{
|
|
{DNSName: "foo.bar.example.com", Target: "1.2.3.4"},
|
|
{DNSName: "foo.bar.example.com", Target: "elb.com"},
|
|
},
|
|
false,
|
|
},
|
|
{
|
|
"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.annotationFilter,
|
|
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
|
|
annotationFilter 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.annotationFilter,
|
|
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)
|
|
})
|
|
}
|
|
}
|
|
|
|
// TestHeadlessServices tests that headless services generate the correct endpoints.
|
|
func TestHeadlessServices(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
|
|
hostIP string
|
|
selector map[string]string
|
|
lbs []string
|
|
hostnames []string
|
|
phases []v1.PodPhase
|
|
expected []*endpoint.Endpoint
|
|
expectError bool
|
|
}{
|
|
{
|
|
"annotated Headless services return endpoints for each selected Pod",
|
|
"",
|
|
"testing",
|
|
"foo",
|
|
v1.ServiceTypeClusterIP,
|
|
"",
|
|
"",
|
|
map[string]string{"component": "foo"},
|
|
map[string]string{
|
|
hostnameAnnotationKey: "service.example.org",
|
|
},
|
|
v1.ClusterIPNone,
|
|
"1.1.1.1",
|
|
map[string]string{
|
|
"component": "foo",
|
|
},
|
|
[]string{},
|
|
[]string{"foo-0", "foo-1"},
|
|
[]v1.PodPhase{v1.PodRunning, v1.PodRunning},
|
|
[]*endpoint.Endpoint{
|
|
{DNSName: "foo-0.service.example.org", Target: "1.1.1.1"},
|
|
{DNSName: "foo-1.service.example.org", Target: "1.1.1.1"},
|
|
},
|
|
false,
|
|
},
|
|
{
|
|
"annotated Headless services return endpoints for each selected Pod, which are in running state",
|
|
"",
|
|
"testing",
|
|
"foo",
|
|
v1.ServiceTypeClusterIP,
|
|
"",
|
|
"",
|
|
map[string]string{"component": "foo"},
|
|
map[string]string{
|
|
hostnameAnnotationKey: "service.example.org",
|
|
},
|
|
v1.ClusterIPNone,
|
|
"1.1.1.1",
|
|
map[string]string{
|
|
"component": "foo",
|
|
},
|
|
[]string{},
|
|
[]string{"foo-0", "foo-1"},
|
|
[]v1.PodPhase{v1.PodRunning, v1.PodFailed},
|
|
[]*endpoint.Endpoint{
|
|
{DNSName: "foo-0.service.example.org", Target: "1.1.1.1"},
|
|
},
|
|
false,
|
|
},
|
|
} {
|
|
t.Run(tc.title, func(t *testing.T) {
|
|
// Create a Kubernetes testing client
|
|
kubernetes := fake.NewSimpleClientset()
|
|
|
|
service := &v1.Service{
|
|
Spec: v1.ServiceSpec{
|
|
Type: tc.svcType,
|
|
ClusterIP: tc.clusterIP,
|
|
Selector: tc.selector,
|
|
},
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Namespace: tc.svcNamespace,
|
|
Name: tc.svcName,
|
|
Labels: tc.labels,
|
|
Annotations: tc.annotations,
|
|
},
|
|
Status: v1.ServiceStatus{},
|
|
}
|
|
_, err := kubernetes.CoreV1().Services(service.Namespace).Create(service)
|
|
require.NoError(t, err)
|
|
|
|
for i, hostname := range tc.hostnames {
|
|
pod := &v1.Pod{
|
|
Spec: v1.PodSpec{
|
|
Containers: []v1.Container{},
|
|
Hostname: hostname,
|
|
},
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Namespace: tc.svcNamespace,
|
|
Name: hostname,
|
|
Labels: tc.labels,
|
|
Annotations: tc.annotations,
|
|
},
|
|
Status: v1.PodStatus{
|
|
HostIP: tc.hostIP,
|
|
Phase: tc.phases[i],
|
|
},
|
|
}
|
|
|
|
_, err = kubernetes.CoreV1().Pods(tc.svcNamespace).Create(pod)
|
|
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)
|
|
}
|
|
}
|