mirror of
https://github.com/traefik/traefik.git
synced 2025-10-31 08:21:27 +01:00
317 lines
8.7 KiB
Go
317 lines
8.7 KiB
Go
package ingress
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import (
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"errors"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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corev1 "k8s.io/api/core/v1"
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discoveryv1 "k8s.io/api/discovery/v1"
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netv1 "k8s.io/api/networking/v1"
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kerror "k8s.io/apimachinery/pkg/api/errors"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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kschema "k8s.io/apimachinery/pkg/runtime/schema"
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kversion "k8s.io/apimachinery/pkg/version"
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discoveryfake "k8s.io/client-go/discovery/fake"
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kubefake "k8s.io/client-go/kubernetes/fake"
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)
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func TestTranslateNotFoundError(t *testing.T) {
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testCases := []struct {
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desc string
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err error
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expectedExists bool
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expectedError error
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}{
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{
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desc: "kubernetes not found error",
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err: kerror.NewNotFound(kschema.GroupResource{}, "foo"),
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expectedExists: false,
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expectedError: nil,
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},
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{
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desc: "nil error",
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err: nil,
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expectedExists: true,
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expectedError: nil,
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},
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{
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desc: "not a kubernetes not found error",
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err: errors.New("bar error"),
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expectedExists: false,
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expectedError: errors.New("bar error"),
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},
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}
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for _, test := range testCases {
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t.Run(test.desc, func(t *testing.T) {
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t.Parallel()
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exists, err := translateNotFoundError(test.err)
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assert.Equal(t, test.expectedExists, exists)
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assert.Equal(t, test.expectedError, err)
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})
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}
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}
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func TestIsLoadBalancerIngressEquals(t *testing.T) {
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testCases := []struct {
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desc string
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aSlice []netv1.IngressLoadBalancerIngress
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bSlice []netv1.IngressLoadBalancerIngress
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expectedEqual bool
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}{
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{
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desc: "both slices are empty",
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expectedEqual: true,
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},
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{
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desc: "not the same length",
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bSlice: []netv1.IngressLoadBalancerIngress{
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{IP: "192.168.1.1", Hostname: "traefik"},
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},
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expectedEqual: false,
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},
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{
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desc: "same ordered content",
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aSlice: []netv1.IngressLoadBalancerIngress{
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{IP: "192.168.1.1", Hostname: "traefik"},
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},
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bSlice: []netv1.IngressLoadBalancerIngress{
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{IP: "192.168.1.1", Hostname: "traefik"},
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},
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expectedEqual: true,
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},
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{
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desc: "same unordered content",
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aSlice: []netv1.IngressLoadBalancerIngress{
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{IP: "192.168.1.1", Hostname: "traefik"},
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{IP: "192.168.1.2", Hostname: "traefik2"},
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},
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bSlice: []netv1.IngressLoadBalancerIngress{
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{IP: "192.168.1.2", Hostname: "traefik2"},
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{IP: "192.168.1.1", Hostname: "traefik"},
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},
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expectedEqual: true,
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},
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{
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desc: "different ordered content",
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aSlice: []netv1.IngressLoadBalancerIngress{
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{IP: "192.168.1.1", Hostname: "traefik"},
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{IP: "192.168.1.2", Hostname: "traefik2"},
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},
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bSlice: []netv1.IngressLoadBalancerIngress{
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{IP: "192.168.1.1", Hostname: "traefik"},
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{IP: "192.168.1.2", Hostname: "traefik"},
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},
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expectedEqual: false,
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},
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{
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desc: "different unordered content",
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aSlice: []netv1.IngressLoadBalancerIngress{
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{IP: "192.168.1.1", Hostname: "traefik"},
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{IP: "192.168.1.2", Hostname: "traefik2"},
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},
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bSlice: []netv1.IngressLoadBalancerIngress{
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{IP: "192.168.1.2", Hostname: "traefik3"},
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{IP: "192.168.1.1", Hostname: "traefik"},
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},
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expectedEqual: false,
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},
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}
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for _, test := range testCases {
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t.Run(test.desc, func(t *testing.T) {
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t.Parallel()
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gotEqual := isLoadBalancerIngressEquals(test.aSlice, test.bSlice)
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assert.Equal(t, test.expectedEqual, gotEqual)
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})
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}
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}
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func TestClientIgnoresHelmOwnedSecrets(t *testing.T) {
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secret := &corev1.Secret{
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ObjectMeta: metav1.ObjectMeta{
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Namespace: "default",
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Name: "secret",
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},
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}
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helmSecret := &corev1.Secret{
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ObjectMeta: metav1.ObjectMeta{
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Namespace: "default",
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Name: "helm-secret",
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Labels: map[string]string{
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"owner": "helm",
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},
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},
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}
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kubeClient := kubefake.NewSimpleClientset(helmSecret, secret)
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discovery, _ := kubeClient.Discovery().(*discoveryfake.FakeDiscovery)
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discovery.FakedServerVersion = &kversion.Info{
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GitVersion: "v1.19",
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}
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client := newClientImpl(kubeClient)
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stopCh := make(chan struct{})
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eventCh, err := client.WatchAll(nil, stopCh)
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require.NoError(t, err)
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select {
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case event := <-eventCh:
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secret, ok := event.(*corev1.Secret)
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require.True(t, ok)
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assert.NotEqual(t, "helm-secret", secret.Name)
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case <-time.After(50 * time.Millisecond):
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assert.Fail(t, "expected to receive event for secret")
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}
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select {
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case <-eventCh:
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assert.Fail(t, "received more than one event")
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case <-time.After(50 * time.Millisecond):
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}
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_, found, err := client.GetSecret("default", "secret")
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require.NoError(t, err)
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assert.True(t, found)
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_, found, err = client.GetSecret("default", "helm-secret")
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require.NoError(t, err)
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assert.False(t, found)
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}
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func TestClientIgnoresEmptyEndpointSliceUpdates(t *testing.T) {
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emptyEndpointSlice := &discoveryv1.EndpointSlice{
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ObjectMeta: metav1.ObjectMeta{
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Name: "empty-endpointslice",
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Namespace: "test",
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ResourceVersion: "1244",
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Annotations: map[string]string{
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"test-annotation": "_",
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},
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},
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}
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samplePortName := "testing"
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samplePortNumber := int32(1337)
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samplePortProtocol := corev1.ProtocolTCP
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sampleAddressReady := true
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filledEndpointSlice := &discoveryv1.EndpointSlice{
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ObjectMeta: metav1.ObjectMeta{
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Name: "filled-endpointslice",
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Namespace: "test",
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ResourceVersion: "1234",
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},
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AddressType: discoveryv1.AddressTypeIPv4,
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Endpoints: []discoveryv1.Endpoint{{
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Addresses: []string{"10.13.37.1"},
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Conditions: discoveryv1.EndpointConditions{
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Ready: &sampleAddressReady,
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},
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}},
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Ports: []discoveryv1.EndpointPort{{
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Name: &samplePortName,
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Port: &samplePortNumber,
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Protocol: &samplePortProtocol,
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}},
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}
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kubeClient := kubefake.NewSimpleClientset(emptyEndpointSlice, filledEndpointSlice)
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discovery, _ := kubeClient.Discovery().(*discoveryfake.FakeDiscovery)
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discovery.FakedServerVersion = &kversion.Info{
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GitVersion: "v1.19",
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}
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client := newClientImpl(kubeClient)
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stopCh := make(chan struct{})
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eventCh, err := client.WatchAll(nil, stopCh)
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require.NoError(t, err)
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select {
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case event := <-eventCh:
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ep, ok := event.(*discoveryv1.EndpointSlice)
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require.True(t, ok)
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assert.True(t, ep.Name == "empty-endpointslice" || ep.Name == "filled-endpointslice")
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case <-time.After(50 * time.Millisecond):
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assert.Fail(t, "expected to receive event for endpointslices")
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}
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emptyEndpointSlice, err = kubeClient.DiscoveryV1().EndpointSlices("test").Get(t.Context(), "empty-endpointslice", metav1.GetOptions{})
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assert.NoError(t, err)
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// Update endpoint annotation and resource version (apparently not done by fake client itself)
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// to show an update that should not trigger an update event on our eventCh.
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// This reflects the behavior of kubernetes controllers which use endpoint annotations for leader election.
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emptyEndpointSlice.Annotations["test-annotation"] = "___"
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emptyEndpointSlice.ResourceVersion = "1245"
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_, err = kubeClient.DiscoveryV1().EndpointSlices("test").Update(t.Context(), emptyEndpointSlice, metav1.UpdateOptions{})
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require.NoError(t, err)
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select {
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case event := <-eventCh:
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ep, ok := event.(*discoveryv1.EndpointSlice)
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require.True(t, ok)
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assert.Fail(t, "didn't expect to receive event for empty endpointslice update", ep.Name)
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case <-time.After(50 * time.Millisecond):
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}
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filledEndpointSlice, err = kubeClient.DiscoveryV1().EndpointSlices("test").Get(t.Context(), "filled-endpointslice", metav1.GetOptions{})
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assert.NoError(t, err)
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filledEndpointSlice.Endpoints[0].Addresses[0] = "10.13.37.2"
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filledEndpointSlice.ResourceVersion = "1235"
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_, err = kubeClient.DiscoveryV1().EndpointSlices("test").Update(t.Context(), filledEndpointSlice, metav1.UpdateOptions{})
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require.NoError(t, err)
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select {
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case event := <-eventCh:
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ep, ok := event.(*discoveryv1.EndpointSlice)
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require.True(t, ok)
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assert.Equal(t, "filled-endpointslice", ep.Name)
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case <-time.After(50 * time.Millisecond):
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assert.Fail(t, "expected to receive event for filled endpointslice")
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}
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select {
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case <-eventCh:
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assert.Fail(t, "received more than one event")
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case <-time.After(50 * time.Millisecond):
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}
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newPortNumber := int32(42)
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filledEndpointSlice.Ports[0].Port = &newPortNumber
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filledEndpointSlice.ResourceVersion = "1236"
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_, err = kubeClient.DiscoveryV1().EndpointSlices("test").Update(t.Context(), filledEndpointSlice, metav1.UpdateOptions{})
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require.NoError(t, err)
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select {
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case event := <-eventCh:
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ep, ok := event.(*discoveryv1.EndpointSlice)
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require.True(t, ok)
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assert.Equal(t, "filled-endpointslice", ep.Name)
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case <-time.After(50 * time.Millisecond):
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assert.Fail(t, "expected to receive event for filled endpointslice")
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}
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select {
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case <-eventCh:
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assert.Fail(t, "received more than one event")
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case <-time.After(50 * time.Millisecond):
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}
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}
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