Add CA rotation TM test

.test-defs/TestSuiteRegistryCacheDisruptiveSerial.yaml

@@ -0,0 +1,26 @@
+apiVersion: testmachinery.sapcloud.io
+kind: TestDefinition
+metadata:
+  name: registry-cache-beta-disruptive-test-suite
+spec:
+  owner: [email protected]
+  description: registry-cache extension test suite that includes all disruptive beta tests
+
+  activeDeadlineSeconds: 9000
+  labels: ["shoot", "beta"]
+  behavior:
+  - disruptive
+
+  command: [bash, -c]
+  args:
+    - >-
+      go test -timeout=0 ./test/testmachinery/shoot
+      --v -ginkgo.v -ginkgo.show-node-events -ginkgo.no-color
+      -kubecfg=$TM_KUBECONFIG_PATH/gardener.config
+      -project-namespace=$PROJECT_NAMESPACE
+      -shoot-name=$SHOOT_NAME
+      -ginkgo.focus="\[BETA\].*\[DISRUPTIVE\]"
+      -ginkgo.skip="\[SERIAL\]"
+      -ginkgo.timeout=9000s
+
+  image: golang:1.23.4

test/common/common.go

@@ -36,6 +36,12 @@ const (
 	// - gcr.io, registry.k8s.io, quay.io, europe-docker.pkg.dev: These are all registries used in the Gardener's local setup. Avoid using them to do not have conflicts with provider-local in some corner cases.
 	// - Amazon ECR: The Distribution project does not support image pulls from Amazon ECR. Ref https://github.com/distribution/distribution/issues/4383.
 
+	// GithubRegistryJitesoftAlpine31511Image is the ghcr.io/jitesoft/alpine:3.15.11 image.
+	GithubRegistryJitesoftAlpine31511Image = "ghcr.io/jitesoft/alpine:3.15.11"
+	// GithubRegistryJitesoftAlpine3169Image is the ghcr.io/jitesoft/alpine:3.16.9 image.
+	GithubRegistryJitesoftAlpine3169Image = "ghcr.io/jitesoft/alpine:3.16.9"
+	// GithubRegistryJitesoftAlpine3179Image is the ghcr.io/jitesoft/alpine:3.17.9 image.
+	GithubRegistryJitesoftAlpine3179Image = "ghcr.io/jitesoft/alpine:3.17.9"
 	// GithubRegistryJitesoftAlpine3189Image is the ghcr.io/jitesoft/alpine:3.18.9 image.
 	GithubRegistryJitesoftAlpine3189Image = "ghcr.io/jitesoft/alpine:3.18.9"
 	// GithubRegistryJitesoftAlpine3194Image is the ghcr.io/jitesoft/alpine:3.19.4 image.

test/testmachinery/shoot/enable_rotate_certs_disable_test.go

@@ -0,0 +1,107 @@
+// SPDX-FileCopyrightText: 2024 SAP SE or an SAP affiliate company and Gardener contributors
+//
+// SPDX-License-Identifier: Apache-2.0
+
+package shoot
+
+import (
+	"context"
+	"time"
+
+	gardencorev1beta1 "github.com/gardener/gardener/pkg/apis/core/v1beta1"
+	"github.com/gardener/gardener/pkg/apis/core/v1beta1/constants"
+	"github.com/gardener/gardener/test/framework"
+	"github.com/gardener/gardener/test/utils/access"
+	. "github.com/onsi/ginkgo/v2"
+	. "github.com/onsi/gomega"
+	"k8s.io/apimachinery/pkg/api/resource"
+
+	"github.com/gardener/gardener-extension-registry-cache/pkg/apis/registry/v1alpha3"
+	"github.com/gardener/gardener-extension-registry-cache/test/common"
+)
+
+const (
+	rotateCertTestTimeout        = 60 * time.Minute
+	rotateCertTestCleanupTimeout = 20 * time.Minute
+)
+
+var _ = Describe("Registry Cache Extension Tests", Label("cache"), func() {
+	f := framework.NewShootFramework(nil)
+
+	f.Disruptive().Beta().CIt("should enable extension, rotate Certificate, disable extension", func(parentCtx context.Context) {
+		By("Enable the registry-cache extension")
+		ctx, cancel := context.WithTimeout(parentCtx, 10*time.Minute)
+		defer cancel()
+		Expect(f.UpdateShoot(ctx, func(shoot *gardencorev1beta1.Shoot) error {
+			size := resource.MustParse("2Gi")
+			if shoot.Spec.Provider.Type == "alicloud" {
+				// On AliCloud the minimum size for SSD volumes is 20Gi.
+				size = resource.MustParse("20Gi")
+			}
+
+			common.AddOrUpdateRegistryCacheExtension(shoot, []v1alpha3.RegistryCache{
+				{Upstream: "ghcr.io", Volume: &v1alpha3.Volume{Size: &size}},
+			})
+
+			return nil
+		})).To(Succeed())
+
+		By("Verify registry-cache works")
+		// Images ghcr.io/jitesoft/alpine:3.18.9, ghcr.io/jitesoft/alpine:3.19.4 and ghcr.io/jitesoft/alpine:3.20.3 are already used by the
+		// "should enable and disable the registry-cache extension" and "should enable extension, hibernate Shoot, reconcile Shoot, wake up Shoot, disable extension"
+		// tests and may present in the Node.
+		// So the current test will use ghcr.io/jitesoft/alpine:3.15.11 ghcr.io/jitesoft/alpine:3.16.9 and ghcr.io/jitesoft/alpine:3.17.9 images.
+		common.VerifyRegistryCache(parentCtx, f.Logger, f.ShootClient, common.GithubRegistryJitesoftAlpine31511Image, common.SleepInfinity)
+
+		By("Rotate certificates phase Preparing")
+		ctx, cancel = context.WithTimeout(parentCtx, 25*time.Minute)
+		defer cancel()
+		Expect(f.AnnotateShoot(ctx, f.Shoot, map[string]string{constants.GardenerOperation: constants.OperationRotateCAStart})).To(Succeed())
+		Expect(f.WaitForShootToBeReconciled(ctx, f.Shoot)).To(Succeed())
+		Expect(f.Shoot.Status.Credentials.Rotation.CertificateAuthorities.Phase).To(Equal(gardencorev1beta1.RotationPrepared))
+
+		By("Verify registry-cache works when phase is Prepared")
+		common.VerifyRegistryCache(parentCtx, f.Logger, f.ShootClient, common.GithubRegistryJitesoftAlpine3169Image, common.SleepInfinity)
+
+		By("Rotate certificates phase Completing")
+		ctx, cancel = context.WithTimeout(parentCtx, 10*time.Minute)
+		defer cancel()
+		Expect(f.AnnotateShoot(ctx, f.Shoot, map[string]string{constants.GardenerOperation: constants.OperationRotateCAComplete})).To(Succeed())
+		Expect(f.WaitForShootToBeReconciled(ctx, f.Shoot)).To(Succeed())
+		Expect(f.Shoot.Status.Credentials.Rotation.CertificateAuthorities.Phase).To(Equal(gardencorev1beta1.RotationCompleted))
+
+		By("Verify registry-cache works after CA rotation")
+		// After rotating the CA, the shoot client must be recreated, otherwise any attempt to use it will fail with::
+		// "tls: failed to verify certificate: x509: certificate signed by unknown authority"
+		shootClient, err := access.CreateShootClientFromAdminKubeconfig(ctx, f.GardenClient, f.Shoot)
+		Expect(err).NotTo(HaveOccurred())
+		common.VerifyRegistryCache(parentCtx, f.Logger, shootClient, common.GithubRegistryJitesoftAlpine3179Image, common.SleepInfinity)
+
+		By("Disable the registry-cache extension")
+		ctx, cancel = context.WithTimeout(parentCtx, 10*time.Minute)
+		defer cancel()
+		Expect(f.UpdateShoot(ctx, func(shoot *gardencorev1beta1.Shoot) error {
+			common.RemoveExtension(shoot, "registry-cache")
+
+			return nil
+		})).To(Succeed())
+
+		By("Verify registry configuration is removed")
+		ctx, cancel = context.WithTimeout(parentCtx, 2*time.Minute)
+		defer cancel()
+		common.VerifyHostsTOMLFilesDeletedForAllNodes(ctx, f.Logger, shootClient, []string{"ghcr.io"})
+	}, rotateCertTestTimeout, framework.WithCAfterTest(func(ctx context.Context) {
+		if f.Shoot.Status.Credentials != nil && f.Shoot.Status.Credentials.Rotation.CertificateAuthorities.Phase != gardencorev1beta1.RotationCompleted {
+			Expect(f.AnnotateShoot(ctx, f.Shoot, map[string]string{constants.GardenerOperation: constants.OperationRotateCAComplete})).To(Succeed())
+			Expect(f.WaitForShootToBeReconciled(ctx, f.Shoot)).To(Succeed())
+		}
+		if common.HasRegistryCacheExtension(f.Shoot) {
+			By("Disable the registry-cache extension")
+			Expect(f.UpdateShoot(ctx, func(shoot *gardencorev1beta1.Shoot) error {
+				common.RemoveExtension(shoot, "registry-cache")
+
+				return nil
+			})).To(Succeed())
+		}
+	}, rotateCertTestCleanupTimeout))
+})