384 lines
14 KiB
Go
384 lines
14 KiB
Go
// Copyright 2020-2021 the Pinniped contributors. All Rights Reserved.
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
|
|
package supervisorstorage
|
|
|
|
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"
|
|
"k8s.io/apimachinery/pkg/util/clock"
|
|
kubeinformers "k8s.io/client-go/informers"
|
|
kubernetesfake "k8s.io/client-go/kubernetes/fake"
|
|
kubetesting "k8s.io/client-go/testing"
|
|
|
|
"go.pinniped.dev/internal/controllerlib"
|
|
"go.pinniped.dev/internal/testutil"
|
|
)
|
|
|
|
func TestGarbageCollectorControllerInformerFilters(t *testing.T) {
|
|
spec.Run(t, "informer filters", func(t *testing.T, when spec.G, it spec.S) {
|
|
var (
|
|
r *require.Assertions
|
|
observableWithInformerOption *testutil.ObservableWithInformerOption
|
|
secretsInformerFilter controllerlib.Filter
|
|
)
|
|
|
|
it.Before(func() {
|
|
r = require.New(t)
|
|
observableWithInformerOption = testutil.NewObservableWithInformerOption()
|
|
secretsInformer := kubeinformers.NewSharedInformerFactory(nil, 0).Core().V1().Secrets()
|
|
_ = GarbageCollectorController(
|
|
clock.RealClock{},
|
|
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
|
|
secretWithAnnotation, otherSecret *corev1.Secret
|
|
)
|
|
|
|
it.Before(func() {
|
|
subject = secretsInformerFilter
|
|
secretWithAnnotation = &corev1.Secret{ObjectMeta: metav1.ObjectMeta{Name: "any-name", Namespace: "any-namespace", Annotations: map[string]string{
|
|
"storage.pinniped.dev/garbage-collect-after": "some timestamp",
|
|
}}}
|
|
otherSecret = &corev1.Secret{ObjectMeta: metav1.ObjectMeta{Name: "any-other-name", Namespace: "any-namespace"}}
|
|
})
|
|
|
|
when("any Secret with the required annotation is added or updated", func() {
|
|
it("returns true to trigger the sync function", func() {
|
|
r.True(subject.Add(secretWithAnnotation))
|
|
r.True(subject.Update(secretWithAnnotation, otherSecret))
|
|
r.True(subject.Update(otherSecret, secretWithAnnotation))
|
|
})
|
|
})
|
|
|
|
when("any Secret with the required annotation is deleted", func() {
|
|
it("returns false to skip the sync function because it does not need to worry about secrets that are already gone", func() {
|
|
r.False(subject.Delete(secretWithAnnotation))
|
|
})
|
|
})
|
|
|
|
when("any Secret without the required annotation changes", func() {
|
|
it("returns false to skip the sync function", func() {
|
|
r.False(subject.Add(otherSecret))
|
|
r.False(subject.Update(otherSecret, otherSecret))
|
|
r.False(subject.Delete(otherSecret))
|
|
})
|
|
})
|
|
|
|
when("any other type is passed", func() {
|
|
it("returns false to skip the sync function", func() {
|
|
wrongType := &corev1.Namespace{ObjectMeta: metav1.ObjectMeta{Name: "some-ns", Namespace: "some-ns"}}
|
|
|
|
r.False(subject.Add(wrongType))
|
|
r.False(subject.Update(wrongType, wrongType))
|
|
r.False(subject.Delete(wrongType))
|
|
})
|
|
})
|
|
})
|
|
}, spec.Parallel(), spec.Report(report.Terminal{}))
|
|
}
|
|
|
|
func TestGarbageCollectorControllerSync(t *testing.T) {
|
|
secretsGVR := schema.GroupVersionResource{
|
|
Group: "",
|
|
Version: "v1",
|
|
Resource: "secrets",
|
|
}
|
|
|
|
spec.Run(t, "Sync", func(t *testing.T, when spec.G, it spec.S) {
|
|
const (
|
|
installedInNamespace = "some-namespace"
|
|
)
|
|
|
|
var (
|
|
r *require.Assertions
|
|
subject controllerlib.Controller
|
|
kubeInformerClient *kubernetesfake.Clientset
|
|
kubeClient *kubernetesfake.Clientset
|
|
kubeInformers kubeinformers.SharedInformerFactory
|
|
cancelContext context.Context
|
|
cancelContextCancelFunc context.CancelFunc
|
|
syncContext *controllerlib.Context
|
|
fakeClock *clock.FakeClock
|
|
frozenNow time.Time
|
|
)
|
|
|
|
// 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 = GarbageCollectorController(
|
|
fakeClock,
|
|
kubeClient,
|
|
kubeInformers.Core().V1().Secrets(),
|
|
controllerlib.WithInformer,
|
|
)
|
|
|
|
// Set this at the last second to support calling subject.Name().
|
|
syncContext = &controllerlib.Context{
|
|
Context: cancelContext,
|
|
Name: subject.Name(),
|
|
Key: controllerlib.Key{
|
|
Namespace: "",
|
|
Name: "",
|
|
},
|
|
}
|
|
|
|
// Must start informers before calling TestRunSynchronously()
|
|
kubeInformers.Start(cancelContext.Done())
|
|
controllerlib.TestRunSynchronously(t, subject)
|
|
}
|
|
|
|
it.Before(func() {
|
|
r = require.New(t)
|
|
|
|
cancelContext, cancelContextCancelFunc = context.WithCancel(context.Background())
|
|
|
|
kubeInformerClient = kubernetesfake.NewSimpleClientset()
|
|
kubeClient = kubernetesfake.NewSimpleClientset()
|
|
kubeInformers = kubeinformers.NewSharedInformerFactory(kubeInformerClient, 0)
|
|
frozenNow = time.Now().UTC()
|
|
fakeClock = clock.NewFakeClock(frozenNow)
|
|
|
|
unrelatedSecret := &corev1.Secret{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "some other unrelated secret",
|
|
Namespace: installedInNamespace,
|
|
},
|
|
}
|
|
r.NoError(kubeInformerClient.Tracker().Add(unrelatedSecret))
|
|
r.NoError(kubeClient.Tracker().Add(unrelatedSecret))
|
|
})
|
|
|
|
it.After(func() {
|
|
cancelContextCancelFunc()
|
|
})
|
|
|
|
when("there are secrets without the garbage-collect-after annotation", func() {
|
|
it("does not delete those secrets", func() {
|
|
startInformersAndController()
|
|
r.NoError(controllerlib.TestSync(t, subject, *syncContext))
|
|
|
|
require.Empty(t, kubeClient.Actions())
|
|
list, err := kubeClient.CoreV1().Secrets(installedInNamespace).List(context.Background(), metav1.ListOptions{})
|
|
r.NoError(err)
|
|
r.Len(list.Items, 1)
|
|
r.Equal("some other unrelated secret", list.Items[0].Name)
|
|
})
|
|
})
|
|
|
|
when("there are secrets with the garbage-collect-after annotation", func() {
|
|
it.Before(func() {
|
|
firstExpiredSecret := &corev1.Secret{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "first expired secret",
|
|
Namespace: installedInNamespace,
|
|
Annotations: map[string]string{
|
|
"storage.pinniped.dev/garbage-collect-after": frozenNow.Add(-time.Second).Format(time.RFC3339),
|
|
},
|
|
},
|
|
}
|
|
r.NoError(kubeInformerClient.Tracker().Add(firstExpiredSecret))
|
|
r.NoError(kubeClient.Tracker().Add(firstExpiredSecret))
|
|
secondExpiredSecret := &corev1.Secret{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "second expired secret",
|
|
Namespace: installedInNamespace,
|
|
Annotations: map[string]string{
|
|
"storage.pinniped.dev/garbage-collect-after": frozenNow.Add(-2 * time.Second).Format(time.RFC3339),
|
|
},
|
|
},
|
|
}
|
|
r.NoError(kubeInformerClient.Tracker().Add(secondExpiredSecret))
|
|
r.NoError(kubeClient.Tracker().Add(secondExpiredSecret))
|
|
unexpiredSecret := &corev1.Secret{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "unexpired secret",
|
|
Namespace: installedInNamespace,
|
|
Annotations: map[string]string{
|
|
"storage.pinniped.dev/garbage-collect-after": frozenNow.Add(time.Second).Format(time.RFC3339),
|
|
},
|
|
},
|
|
}
|
|
r.NoError(kubeInformerClient.Tracker().Add(unexpiredSecret))
|
|
r.NoError(kubeClient.Tracker().Add(unexpiredSecret))
|
|
})
|
|
|
|
it("should delete any that are past their expiration", func() {
|
|
startInformersAndController()
|
|
r.NoError(controllerlib.TestSync(t, subject, *syncContext))
|
|
|
|
r.ElementsMatch(
|
|
[]kubetesting.Action{
|
|
kubetesting.NewDeleteAction(secretsGVR, installedInNamespace, "first expired secret"),
|
|
kubetesting.NewDeleteAction(secretsGVR, installedInNamespace, "second expired secret"),
|
|
},
|
|
kubeClient.Actions(),
|
|
)
|
|
list, err := kubeClient.CoreV1().Secrets(installedInNamespace).List(context.Background(), metav1.ListOptions{})
|
|
r.NoError(err)
|
|
r.Len(list.Items, 2)
|
|
r.ElementsMatch([]string{"unexpired secret", "some other unrelated secret"}, []string{list.Items[0].Name, list.Items[1].Name})
|
|
})
|
|
})
|
|
|
|
when("very little time has passed since the previous sync call", func() {
|
|
it.Before(func() {
|
|
// Add a secret that will expire in 20 seconds.
|
|
expiredSecret := &corev1.Secret{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "expired secret",
|
|
Namespace: installedInNamespace,
|
|
Annotations: map[string]string{
|
|
"storage.pinniped.dev/garbage-collect-after": frozenNow.Add(20 * time.Second).Format(time.RFC3339),
|
|
},
|
|
},
|
|
}
|
|
r.NoError(kubeInformerClient.Tracker().Add(expiredSecret))
|
|
r.NoError(kubeClient.Tracker().Add(expiredSecret))
|
|
})
|
|
|
|
it("should do nothing to avoid being super chatty since it is called for every change to any Secret, until more time has passed", func() {
|
|
startInformersAndController()
|
|
require.Empty(t, kubeClient.Actions())
|
|
|
|
// Run sync once with the current time set to frozenTime.
|
|
r.NoError(controllerlib.TestSync(t, subject, *syncContext))
|
|
require.Empty(t, kubeClient.Actions())
|
|
|
|
// Run sync again when not enough time has passed since the most recent run, so no delete
|
|
// operations should happen even though there is a expired secret now.
|
|
fakeClock.Step(29 * time.Second)
|
|
r.NoError(controllerlib.TestSync(t, subject, *syncContext))
|
|
require.Empty(t, kubeClient.Actions())
|
|
|
|
// Step to the exact threshold and run Sync again. Now we are past the rate limiting period.
|
|
fakeClock.Step(1*time.Second + 1*time.Millisecond)
|
|
r.NoError(controllerlib.TestSync(t, subject, *syncContext))
|
|
|
|
// It should have deleted the expired secret.
|
|
r.ElementsMatch(
|
|
[]kubetesting.Action{
|
|
kubetesting.NewDeleteAction(secretsGVR, installedInNamespace, "expired secret"),
|
|
},
|
|
kubeClient.Actions(),
|
|
)
|
|
list, err := kubeClient.CoreV1().Secrets(installedInNamespace).List(context.Background(), metav1.ListOptions{})
|
|
r.NoError(err)
|
|
r.Len(list.Items, 1)
|
|
r.Equal("some other unrelated secret", list.Items[0].Name)
|
|
})
|
|
})
|
|
|
|
when("there is a secret with a malformed garbage-collect-after date", func() {
|
|
it.Before(func() {
|
|
malformedSecret := &corev1.Secret{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "malformed secret",
|
|
Namespace: installedInNamespace,
|
|
Annotations: map[string]string{
|
|
"storage.pinniped.dev/garbage-collect-after": "not-a-real-date-string",
|
|
},
|
|
},
|
|
}
|
|
r.NoError(kubeInformerClient.Tracker().Add(malformedSecret))
|
|
r.NoError(kubeClient.Tracker().Add(malformedSecret))
|
|
expiredSecret := &corev1.Secret{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "expired secret",
|
|
Namespace: installedInNamespace,
|
|
Annotations: map[string]string{
|
|
"storage.pinniped.dev/garbage-collect-after": frozenNow.Add(-time.Second).Format(time.RFC3339),
|
|
},
|
|
},
|
|
}
|
|
r.NoError(kubeInformerClient.Tracker().Add(expiredSecret))
|
|
r.NoError(kubeClient.Tracker().Add(expiredSecret))
|
|
})
|
|
|
|
it("does not delete that secret", func() {
|
|
startInformersAndController()
|
|
r.NoError(controllerlib.TestSync(t, subject, *syncContext))
|
|
|
|
r.ElementsMatch(
|
|
[]kubetesting.Action{
|
|
kubetesting.NewDeleteAction(secretsGVR, installedInNamespace, "expired secret"),
|
|
},
|
|
kubeClient.Actions(),
|
|
)
|
|
list, err := kubeClient.CoreV1().Secrets(installedInNamespace).List(context.Background(), metav1.ListOptions{})
|
|
r.NoError(err)
|
|
r.Len(list.Items, 2)
|
|
r.ElementsMatch([]string{"malformed secret", "some other unrelated secret"}, []string{list.Items[0].Name, list.Items[1].Name})
|
|
})
|
|
})
|
|
|
|
when("the kube API delete call fails", func() {
|
|
it.Before(func() {
|
|
erroringSecret := &corev1.Secret{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "erroring secret",
|
|
Namespace: installedInNamespace,
|
|
Annotations: map[string]string{
|
|
"storage.pinniped.dev/garbage-collect-after": frozenNow.Add(-time.Second).Format(time.RFC3339),
|
|
},
|
|
},
|
|
}
|
|
r.NoError(kubeInformerClient.Tracker().Add(erroringSecret))
|
|
r.NoError(kubeClient.Tracker().Add(erroringSecret))
|
|
kubeClient.PrependReactor("delete", "secrets", func(action kubetesting.Action) (bool, runtime.Object, error) {
|
|
if action.(kubetesting.DeleteActionImpl).Name == "erroring secret" {
|
|
return true, nil, errors.New("delete failed: some delete error")
|
|
}
|
|
return false, nil, nil
|
|
})
|
|
expiredSecret := &corev1.Secret{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "expired secret",
|
|
Namespace: installedInNamespace,
|
|
Annotations: map[string]string{
|
|
"storage.pinniped.dev/garbage-collect-after": frozenNow.Add(-time.Second).Format(time.RFC3339),
|
|
},
|
|
},
|
|
}
|
|
r.NoError(kubeInformerClient.Tracker().Add(expiredSecret))
|
|
r.NoError(kubeClient.Tracker().Add(expiredSecret))
|
|
})
|
|
|
|
it("ignores the error and continues on to delete the next expired Secret", func() {
|
|
startInformersAndController()
|
|
r.NoError(controllerlib.TestSync(t, subject, *syncContext))
|
|
|
|
r.ElementsMatch(
|
|
[]kubetesting.Action{
|
|
kubetesting.NewDeleteAction(secretsGVR, installedInNamespace, "erroring secret"),
|
|
kubetesting.NewDeleteAction(secretsGVR, installedInNamespace, "expired secret"),
|
|
},
|
|
kubeClient.Actions(),
|
|
)
|
|
list, err := kubeClient.CoreV1().Secrets(installedInNamespace).List(context.Background(), metav1.ListOptions{})
|
|
r.NoError(err)
|
|
r.Len(list.Items, 2)
|
|
r.ElementsMatch([]string{"erroring secret", "some other unrelated secret"}, []string{list.Items[0].Name, list.Items[1].Name})
|
|
})
|
|
})
|
|
}, spec.Parallel(), spec.Report(report.Terminal{}))
|
|
}
|