ContainerImage.Pinniped/internal/controller/apicerts/apiservice_updater_test.go
Matt Moyer 78ac27c262
Remove deprecated "pinniped.dev" API group.
This has been replaced by the "login.pinniped.dev" group with a slightly different API.

Signed-off-by: Matt Moyer <moyerm@vmware.com>
2020-09-18 17:32:15 -05:00

278 lines
9.5 KiB
Go

// Copyright 2020 the Pinniped contributors. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
package apicerts
import (
"context"
"errors"
"testing"
"time"
"github.com/sclevine/spec"
"github.com/sclevine/spec/report"
"github.com/stretchr/testify/require"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
kubeinformers "k8s.io/client-go/informers"
kubernetesfake "k8s.io/client-go/kubernetes/fake"
coretesting "k8s.io/client-go/testing"
apiregistrationv1 "k8s.io/kube-aggregator/pkg/apis/apiregistration/v1"
aggregatorfake "k8s.io/kube-aggregator/pkg/client/clientset_generated/clientset/fake"
loginv1alpha1 "go.pinniped.dev/generated/1.19/apis/login/v1alpha1"
"go.pinniped.dev/internal/controllerlib"
"go.pinniped.dev/internal/testutil"
)
func TestAPIServiceUpdaterControllerOptions(t *testing.T) {
spec.Run(t, "options", func(t *testing.T, when spec.G, it spec.S) {
const installedInNamespace = "some-namespace"
var r *require.Assertions
var observableWithInformerOption *testutil.ObservableWithInformerOption
var secretsInformerFilter controllerlib.Filter
it.Before(func() {
r = require.New(t)
observableWithInformerOption = testutil.NewObservableWithInformerOption()
secretsInformer := kubeinformers.NewSharedInformerFactory(nil, 0).Core().V1().Secrets()
_ = NewAPIServiceUpdaterController(
installedInNamespace,
loginv1alpha1.SchemeGroupVersion.Version+"."+loginv1alpha1.GroupName,
nil,
secretsInformer,
observableWithInformerOption.WithInformer, // make it possible to observe the behavior of the Filters
)
secretsInformerFilter = observableWithInformerOption.GetFilterForInformer(secretsInformer)
})
when("watching Secret objects", func() {
var subject controllerlib.Filter
var target, wrongNamespace, wrongName, unrelated *corev1.Secret
it.Before(func() {
subject = secretsInformerFilter
target = &corev1.Secret{ObjectMeta: metav1.ObjectMeta{Name: "api-serving-cert", Namespace: installedInNamespace}}
wrongNamespace = &corev1.Secret{ObjectMeta: metav1.ObjectMeta{Name: "api-serving-cert", Namespace: "wrong-namespace"}}
wrongName = &corev1.Secret{ObjectMeta: metav1.ObjectMeta{Name: "wrong-name", Namespace: installedInNamespace}}
unrelated = &corev1.Secret{ObjectMeta: metav1.ObjectMeta{Name: "wrong-name", Namespace: "wrong-namespace"}}
})
when("the target Secret changes", func() {
it("returns true to trigger the sync method", func() {
r.True(subject.Add(target))
r.True(subject.Update(target, unrelated))
r.True(subject.Update(unrelated, target))
r.True(subject.Delete(target))
})
})
when("a Secret from another namespace changes", func() {
it("returns false to avoid triggering the sync method", func() {
r.False(subject.Add(wrongNamespace))
r.False(subject.Update(wrongNamespace, unrelated))
r.False(subject.Update(unrelated, wrongNamespace))
r.False(subject.Delete(wrongNamespace))
})
})
when("a Secret with a different name changes", func() {
it("returns false to avoid triggering the sync method", func() {
r.False(subject.Add(wrongName))
r.False(subject.Update(wrongName, unrelated))
r.False(subject.Update(unrelated, wrongName))
r.False(subject.Delete(wrongName))
})
})
when("a Secret with a different name and a different namespace changes", func() {
it("returns false to avoid triggering the sync method", func() {
r.False(subject.Add(unrelated))
r.False(subject.Update(unrelated, unrelated))
r.False(subject.Delete(unrelated))
})
})
})
}, spec.Parallel(), spec.Report(report.Terminal{}))
}
func TestAPIServiceUpdaterControllerSync(t *testing.T) {
spec.Run(t, "Sync", func(t *testing.T, when spec.G, it spec.S) {
const installedInNamespace = "some-namespace"
var r *require.Assertions
var subject controllerlib.Controller
var aggregatorAPIClient *aggregatorfake.Clientset
var kubeInformerClient *kubernetesfake.Clientset
var kubeInformers kubeinformers.SharedInformerFactory
var timeoutContext context.Context
var timeoutContextCancel context.CancelFunc
var syncContext *controllerlib.Context
// Defer starting the informers until the last possible moment so that the
// nested Before's can keep adding things to the informer caches.
var startInformersAndController = func() {
// Set this at the last second to allow for injection of server override.
subject = NewAPIServiceUpdaterController(
installedInNamespace,
loginv1alpha1.SchemeGroupVersion.Version+"."+loginv1alpha1.GroupName,
aggregatorAPIClient,
kubeInformers.Core().V1().Secrets(),
controllerlib.WithInformer,
)
// Set this at the last second to support calling subject.Name().
syncContext = &controllerlib.Context{
Context: timeoutContext,
Name: subject.Name(),
Key: controllerlib.Key{
Namespace: installedInNamespace,
Name: "api-serving-cert",
},
}
// Must start informers before calling TestRunSynchronously()
kubeInformers.Start(timeoutContext.Done())
controllerlib.TestRunSynchronously(t, subject)
}
it.Before(func() {
r = require.New(t)
timeoutContext, timeoutContextCancel = context.WithTimeout(context.Background(), time.Second*3)
kubeInformerClient = kubernetesfake.NewSimpleClientset()
kubeInformers = kubeinformers.NewSharedInformerFactory(kubeInformerClient, 0)
aggregatorAPIClient = aggregatorfake.NewSimpleClientset()
})
it.After(func() {
timeoutContextCancel()
})
when("there is not yet an api-serving-cert Secret in the installation namespace or it was deleted", func() {
it.Before(func() {
unrelatedSecret := &corev1.Secret{
ObjectMeta: metav1.ObjectMeta{
Name: "some other secret",
Namespace: installedInNamespace,
},
}
err := kubeInformerClient.Tracker().Add(unrelatedSecret)
r.NoError(err)
})
it("does not need to make any API calls with its API client", func() {
startInformersAndController()
err := controllerlib.TestSync(t, subject, *syncContext)
r.NoError(err)
r.Empty(aggregatorAPIClient.Actions())
})
})
when("there is an api-serving-cert Secret already in the installation namespace", func() {
it.Before(func() {
apiServingCertSecret := &corev1.Secret{
ObjectMeta: metav1.ObjectMeta{
Name: "api-serving-cert",
Namespace: installedInNamespace,
},
Data: map[string][]byte{
"caCertificate": []byte("fake CA cert"),
"tlsPrivateKey": []byte("fake private key"),
"tlsCertificateChain": []byte("fake cert chain"),
},
}
err := kubeInformerClient.Tracker().Add(apiServingCertSecret)
r.NoError(err)
})
when("the APIService exists", func() {
it.Before(func() {
apiService := &apiregistrationv1.APIService{
ObjectMeta: metav1.ObjectMeta{
Name: loginv1alpha1.SchemeGroupVersion.Version + "." + loginv1alpha1.GroupName,
},
Spec: apiregistrationv1.APIServiceSpec{
CABundle: nil,
VersionPriority: 1234,
},
}
err := aggregatorAPIClient.Tracker().Add(apiService)
r.NoError(err)
})
it("updates the APIService's ca bundle", func() {
startInformersAndController()
err := controllerlib.TestSync(t, subject, *syncContext)
r.NoError(err)
// Make sure we updated the APIService caBundle and left it otherwise unchanged
r.Len(aggregatorAPIClient.Actions(), 2)
r.Equal("get", aggregatorAPIClient.Actions()[0].GetVerb())
expectedAPIServiceName := loginv1alpha1.SchemeGroupVersion.Version + "." + loginv1alpha1.GroupName
expectedUpdateAction := coretesting.NewUpdateAction(
schema.GroupVersionResource{
Group: apiregistrationv1.GroupName,
Version: "v1",
Resource: "apiservices",
},
"",
&apiregistrationv1.APIService{
ObjectMeta: metav1.ObjectMeta{
Name: expectedAPIServiceName,
Namespace: "",
},
Spec: apiregistrationv1.APIServiceSpec{
VersionPriority: 1234, // only the CABundle is updated, this other field is left unchanged
CABundle: []byte("fake CA cert"),
},
},
)
r.Equal(expectedUpdateAction, aggregatorAPIClient.Actions()[1])
})
when("updating the APIService fails", func() {
it.Before(func() {
aggregatorAPIClient.PrependReactor(
"update",
"apiservices",
func(_ coretesting.Action) (bool, runtime.Object, error) {
return true, nil, errors.New("update failed")
},
)
})
it("returns the update error", func() {
startInformersAndController()
err := controllerlib.TestSync(t, subject, *syncContext)
r.EqualError(err, "could not update the API service: could not update API service: update failed")
})
})
})
when("the APIService does not exist", func() {
it.Before(func() {
unrelatedAPIService := &apiregistrationv1.APIService{
ObjectMeta: metav1.ObjectMeta{Name: "some other api service"},
Spec: apiregistrationv1.APIServiceSpec{},
}
err := aggregatorAPIClient.Tracker().Add(unrelatedAPIService)
r.NoError(err)
})
it("returns an error", func() {
startInformersAndController()
err := controllerlib.TestSync(t, subject, *syncContext)
r.Error(err)
r.Regexp("could not get existing version of API service: .* not found", err.Error())
})
})
})
}, spec.Parallel(), spec.Report(report.Terminal{}))
}