52894d7bfb
The KEP specifies that the controller will "mirror all labels from the Endpoints resource and all endpoints and ports from the corresponding subset". I'd missed that in my initial implementation, this should fix that.
103 lines
3.2 KiB
Go
103 lines
3.2 KiB
Go
/*
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Copyright 2020 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 endpointslicemirroring
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import (
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"fmt"
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"testing"
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"github.com/stretchr/testify/assert"
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v1 "k8s.io/api/core/v1"
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discovery "k8s.io/api/discovery/v1beta1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/apimachinery/pkg/util/rand"
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"k8s.io/client-go/kubernetes/fake"
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k8stesting "k8s.io/client-go/testing"
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)
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func TestNewEndpointSlice(t *testing.T) {
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portName := "foo"
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protocol := v1.ProtocolTCP
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ports := []discovery.EndpointPort{{Name: &portName, Protocol: &protocol}}
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addrType := discovery.AddressTypeIPv4
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endpoints := v1.Endpoints{
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ObjectMeta: metav1.ObjectMeta{
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Name: "foo",
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Namespace: "test",
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Labels: map[string]string{"foo": "bar"},
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},
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Subsets: []v1.EndpointSubset{{
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Ports: []v1.EndpointPort{{Port: 80}},
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}},
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}
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gvk := schema.GroupVersionKind{Version: "v1", Kind: "Endpoints"}
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ownerRef := metav1.NewControllerRef(&endpoints, gvk)
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expectedSlice := discovery.EndpointSlice{
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ObjectMeta: metav1.ObjectMeta{
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Labels: map[string]string{
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"foo": "bar",
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discovery.LabelServiceName: endpoints.Name,
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discovery.LabelManagedBy: controllerName,
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},
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GenerateName: fmt.Sprintf("%s-", endpoints.Name),
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OwnerReferences: []metav1.OwnerReference{*ownerRef},
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Namespace: endpoints.Namespace,
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},
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Ports: ports,
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AddressType: addrType,
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Endpoints: []discovery.Endpoint{},
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}
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generatedSlice := newEndpointSlice(&endpoints, ports, addrType, "")
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assert.EqualValues(t, expectedSlice, *generatedSlice)
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if len(endpoints.Labels) > 1 {
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t.Errorf("Expected Endpoints labels to not be modified, got %+v", endpoints.Labels)
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}
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}
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// Test helpers
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func newClientset() *fake.Clientset {
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client := fake.NewSimpleClientset()
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client.PrependReactor("create", "endpointslices", k8stesting.ReactionFunc(func(action k8stesting.Action) (bool, runtime.Object, error) {
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endpointSlice := action.(k8stesting.CreateAction).GetObject().(*discovery.EndpointSlice)
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if endpointSlice.ObjectMeta.GenerateName != "" {
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endpointSlice.ObjectMeta.Name = fmt.Sprintf("%s-%s", endpointSlice.ObjectMeta.GenerateName, rand.String(8))
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endpointSlice.ObjectMeta.GenerateName = ""
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}
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endpointSlice.ObjectMeta.ResourceVersion = "100"
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return false, endpointSlice, nil
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}))
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client.PrependReactor("update", "endpointslices", k8stesting.ReactionFunc(func(action k8stesting.Action) (bool, runtime.Object, error) {
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endpointSlice := action.(k8stesting.CreateAction).GetObject().(*discovery.EndpointSlice)
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endpointSlice.ObjectMeta.ResourceVersion = "200"
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return false, endpointSlice, nil
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}))
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return client
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}
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