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charttest.go
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charttest.go
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// Copyright (c) 2021 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package charttest
import (
"context"
"fmt"
"time"
"github.com/onsi/ginkgo/v2"
. "github.com/onsi/gomega"
appsv1 "k8s.io/api/apps/v1"
autoscalingv1 "k8s.io/api/autoscaling/v1"
corev1 "k8s.io/api/core/v1"
rbacv1 "k8s.io/api/rbac/v1"
schedulingv1 "k8s.io/api/scheduling/v1"
apierrors "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/api/resource"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/types"
"k8s.io/apimachinery/pkg/util/intstr"
vpaautoscalingv1 "k8s.io/autoscaler/vertical-pod-autoscaler/pkg/apis/autoscaling.k8s.io/v1"
"k8s.io/client-go/tools/leaderelection/resourcelock"
baseconfigv1alpha1 "k8s.io/component-base/config/v1alpha1"
"k8s.io/utils/pointer"
"sigs.k8s.io/controller-runtime/pkg/client"
gardencore "github.com/gardener/gardener/pkg/apis/core"
gardencorev1beta1 "github.com/gardener/gardener/pkg/apis/core/v1beta1"
gardencorev1beta1constants "github.com/gardener/gardener/pkg/apis/core/v1beta1/constants"
"github.com/gardener/gardener/pkg/apis/seedmanagement"
"github.com/gardener/gardener/pkg/features"
gardenletconfigv1alpha1 "github.com/gardener/gardener/pkg/gardenlet/apis/config/v1alpha1"
"github.com/gardener/gardener/pkg/utils"
kutil "github.com/gardener/gardener/pkg/utils/kubernetes"
. "github.com/gardener/gardener/pkg/utils/test/matchers"
)
// ValidateGardenletChartVPA validates the vpa of the Gardenlet chart.
func ValidateGardenletChartVPA(ctx context.Context, c client.Client) {
vpa := &vpaautoscalingv1.VerticalPodAutoscaler{
ObjectMeta: metav1.ObjectMeta{
Name: "gardenlet-vpa",
Namespace: "garden",
},
}
Expect(c.Get(
ctx,
kutil.Key(vpa.Namespace, vpa.Name),
vpa,
)).ToNot(HaveOccurred())
auto := vpaautoscalingv1.UpdateModeAuto
expectedSpec := vpaautoscalingv1.VerticalPodAutoscalerSpec{
TargetRef: &autoscalingv1.CrossVersionObjectReference{
APIVersion: "apps/v1",
Kind: "Deployment",
Name: "gardenlet",
},
UpdatePolicy: &vpaautoscalingv1.PodUpdatePolicy{UpdateMode: &auto},
ResourcePolicy: &vpaautoscalingv1.PodResourcePolicy{ContainerPolicies: []vpaautoscalingv1.ContainerResourcePolicy{
{
ContainerName: "*",
MinAllowed: corev1.ResourceList{
"cpu": resource.MustParse("50m"),
"memory": resource.MustParse("200Mi"),
},
},
}},
}
Expect(vpa.Spec).To(DeepEqual(expectedSpec))
}
// ValidateGardenletChartPriorityClass validates the priority class of the Gardenlet chart.
func ValidateGardenletChartPriorityClass(ctx context.Context, c client.Client) {
priorityClass := getEmptyPriorityClass()
Expect(c.Get(
ctx,
kutil.Key(priorityClass.Name),
priorityClass,
)).ToNot(HaveOccurred())
Expect(priorityClass.GlobalDefault).To(Equal(false))
Expect(priorityClass.Value).To(Equal(int32(999998950)))
}
func getEmptyPriorityClass() *schedulingv1.PriorityClass {
return &schedulingv1.PriorityClass{
ObjectMeta: metav1.ObjectMeta{
Name: gardencorev1beta1constants.PriorityClassNameSeedSystemCritical,
},
}
}
// ValidateGardenletChartRBAC validates the RBAC resources of the Gardenlet chart.
func ValidateGardenletChartRBAC(ctx context.Context, c client.Client, expectedLabels map[string]string, serviceAccountName string, featureGates map[string]bool) {
// ClusterRoles
gardenletClusterRole := getGardenletClusterRole(expectedLabels)
apiServerSNIEnabled, ok := featureGates[string(features.APIServerSNI)]
apiServerSNIClusterRole := getAPIServerSNIClusterRole(expectedLabels, !ok || apiServerSNIEnabled)
expectedClusterRoles := map[types.NamespacedName]*rbacv1.ClusterRole{
{Name: gardenletClusterRole.Name}: gardenletClusterRole,
{Name: apiServerSNIClusterRole.Name}: apiServerSNIClusterRole,
}
if featureGates[string(features.ManagedIstio)] {
managedIstioClusterRole := getManagedIstioClusterRole(expectedLabels)
key := types.NamespacedName{Name: managedIstioClusterRole.Name}
expectedClusterRoles[key] = managedIstioClusterRole
}
for key, expected := range expectedClusterRoles {
actual := &rbacv1.ClusterRole{}
Expect(c.Get(ctx, key, actual)).ToNot(HaveOccurred())
Expect(actual).To(DeepEqual(expected))
}
// ClusterRoleBindings
gardenletClusterRoleBinding := getGardenletClusterRoleBinding(expectedLabels, serviceAccountName)
apiServerSNIClusterRoleBinding := getAPIServerSNIClusterRoleBinding(expectedLabels, serviceAccountName)
expectedClusterRoleBindings := map[types.NamespacedName]*rbacv1.ClusterRoleBinding{
{Name: gardenletClusterRoleBinding.Name}: gardenletClusterRoleBinding,
{Name: apiServerSNIClusterRoleBinding.Name}: apiServerSNIClusterRoleBinding,
}
if featureGates[string(features.ManagedIstio)] {
managedIstioClusterRoleBinding := getManagedIstioClusterRoleBinding(expectedLabels, serviceAccountName)
key := types.NamespacedName{Name: managedIstioClusterRoleBinding.Name}
expectedClusterRoleBindings[key] = managedIstioClusterRoleBinding
}
for key, expected := range expectedClusterRoleBindings {
actual := &rbacv1.ClusterRoleBinding{}
Expect(c.Get(ctx, key, actual)).ToNot(HaveOccurred())
Expect(actual).To(DeepEqual(expected))
}
// Roles
gardenGardenletRole := getGardenGardenletRole(expectedLabels)
expectedRoles := map[types.NamespacedName]*rbacv1.Role{
{Name: gardenGardenletRole.Name, Namespace: gardenGardenletRole.Namespace}: gardenGardenletRole,
}
for key, expected := range expectedRoles {
actual := &rbacv1.Role{}
Expect(c.Get(ctx, key, actual)).ToNot(HaveOccurred())
Expect(actual).To(DeepEqual(expected))
}
// RoleBindings
gardenGardenletRoleBinding := getGardenGardenletRoleBinding(expectedLabels, serviceAccountName)
expectedRoleBindings := map[types.NamespacedName]*rbacv1.RoleBinding{
{Name: gardenGardenletRoleBinding.Name, Namespace: gardenGardenletRoleBinding.Namespace}: gardenGardenletRoleBinding,
}
for key, expected := range expectedRoleBindings {
actual := &rbacv1.RoleBinding{}
Expect(c.Get(ctx, key, actual)).ToNot(HaveOccurred())
Expect(actual).To(DeepEqual(expected))
}
}
func getGardenletClusterRole(labels map[string]string) *rbacv1.ClusterRole {
return &rbacv1.ClusterRole{
TypeMeta: metav1.TypeMeta{Kind: "ClusterRole", APIVersion: rbacv1.SchemeGroupVersion.String()},
ObjectMeta: metav1.ObjectMeta{
Name: "gardener.cloud:system:gardenlet",
Labels: labels,
ResourceVersion: "1",
},
Rules: []rbacv1.PolicyRule{
{
APIGroups: []string{""},
Resources: []string{"endpoints"},
Verbs: []string{"get", "list", "watch"},
},
{
APIGroups: []string{""},
Resources: []string{"nodes"},
Verbs: []string{"list", "watch"},
},
{
APIGroups: []string{""},
Resources: []string{"pods"},
Verbs: []string{"list", "watch", "delete", "deletecollection"},
},
{
APIGroups: []string{""},
Resources: []string{"pods/log"},
Verbs: []string{"get"},
},
{
APIGroups: []string{""},
Resources: []string{"pods/exec"},
Verbs: []string{"create"},
},
{
APIGroups: []string{""},
Resources: []string{"configmaps", "namespaces", "secrets", "serviceaccounts", "services"},
Verbs: []string{"create", "delete", "deletecollection", "get", "list", "watch", "patch", "update"},
},
{
APIGroups: []string{""},
Resources: []string{"persistentvolumeclaims"},
Verbs: []string{"get", "list", "watch", "patch", "update"},
},
{
APIGroups: []string{""},
Resources: []string{"persistentvolumeclaims"},
ResourceNames: []string{"alertmanager-db-alertmanager-0", "loki-loki-0", "prometheus-db-prometheus-0"},
Verbs: []string{"delete"},
},
{
APIGroups: []string{"admissionregistration.k8s.io"},
Resources: []string{"mutatingwebhookconfigurations", "validatingwebhookconfigurations"},
Verbs: []string{"create", "delete", "deletecollection", "get", "list", "watch", "patch", "update"},
},
{
APIGroups: []string{"admissionregistration.k8s.io"},
Resources: []string{"mutatingwebhookconfigurations"},
ResourceNames: []string{"vpa-webhook-config-seed"},
Verbs: []string{"get", "delete", "update"},
},
{
APIGroups: []string{"apiextensions.k8s.io"},
Resources: []string{"customresourcedefinitions"},
Verbs: []string{"create", "get", "list", "watch", "patch", "update"},
},
{
APIGroups: []string{"apiextensions.k8s.io"},
Resources: []string{"customresourcedefinitions"},
ResourceNames: []string{
"hvpas.autoscaling.k8s.io",
"destinationrules.networking.istio.io",
"envoyfilters.networking.istio.io",
"gateways.networking.istio.io",
"serviceentries.networking.istio.io",
"sidecars.networking.istio.io",
"virtualservices.networking.istio.io",
"authorizationpolicies.security.istio.io",
"peerauthentications.security.istio.io",
"requestauthentications.security.istio.io",
"workloadentries.networking.istio.io",
"workloadgroups.networking.istio.io",
"telemetries.telemetry.istio.io",
"wasmplugins.extensions.istio.io",
"proxyconfigs.networking.istio.io"},
Verbs: []string{"delete"},
},
{
APIGroups: []string{"apps"},
Resources: []string{"deployments", "statefulsets", "replicasets"},
Verbs: []string{"create", "delete", "deletecollection", "get", "list", "watch", "patch", "update"},
},
{
APIGroups: []string{"autoscaling"},
Resources: []string{"horizontalpodautoscalers"},
Verbs: []string{"create", "delete", "get", "list", "watch", "patch", "update"},
},
{
APIGroups: []string{"autoscaling.k8s.io"},
Resources: []string{"hvpas"},
Verbs: []string{"create", "get", "list", "watch"},
},
{
APIGroups: []string{"autoscaling.k8s.io"},
Resources: []string{"hvpas"},
ResourceNames: []string{"etcd-events", "etcd-main", "kube-apiserver", "kube-controller-manager", "aggregate-prometheus", "prometheus", "loki"},
Verbs: []string{"delete", "patch", "update"},
},
{
APIGroups: []string{"autoscaling.k8s.io"},
Resources: []string{"verticalpodautoscalers"},
Verbs: []string{"create", "delete", "get", "list", "watch", "patch", "update"},
},
{
APIGroups: []string{"druid.gardener.cloud"},
Resources: []string{"etcds", "etcdcopybackupstasks"},
Verbs: []string{"create", "delete", "get", "list", "watch", "patch", "update"},
},
{
APIGroups: []string{"extensions.gardener.cloud"},
Resources: []string{"backupbuckets", "backupentries", "bastions", "clusters", "containerruntimes", "controlplanes", "dnsrecords", "extensions", "infrastructures", "networks", "operatingsystemconfigs", "workers"},
Verbs: []string{"create", "delete", "get", "list", "watch", "patch", "update"},
},
{
APIGroups: []string{"extensions.gardener.cloud"},
Resources: []string{"backupbuckets/status", "backupentries/status", "containerruntimes/status", "controlplanes/status", "extensions/status", "infrastructures/status", "networks/status", "operatingsystemconfigs/status", "workers/status"},
Verbs: []string{"patch", "update"},
},
{
APIGroups: []string{"resources.gardener.cloud"},
Resources: []string{"managedresources"},
Verbs: []string{"create", "delete", "deletecollection", "get", "list", "watch", "patch", "update"},
},
{
APIGroups: []string{"networking.k8s.io"},
Resources: []string{"networkpolicies"},
Verbs: []string{"create", "delete", "get", "list", "watch", "patch", "update"},
},
{
APIGroups: []string{"extensions", "networking.k8s.io"},
Resources: []string{"ingresses", "ingressclasses"},
Verbs: []string{"create", "delete", "deletecollection", "get", "list", "watch", "patch", "update"},
},
{
APIGroups: []string{"policy"},
Resources: []string{"poddisruptionbudgets"},
Verbs: []string{"create", "delete", "get", "list", "watch", "patch", "update"},
},
{
APIGroups: []string{"rbac.authorization.k8s.io"},
Resources: []string{"clusterrolebindings", "clusterroles", "rolebindings", "roles"},
Verbs: []string{"create", "delete", "deletecollection", "get", "list", "watch", "patch", "update"},
},
{
APIGroups: []string{"rbac.authorization.k8s.io"},
Resources: []string{"clusterroles", "roles"},
Verbs: []string{"bind", "escalate"},
},
{
APIGroups: []string{"scheduling.k8s.io"},
Resources: []string{"priorityclasses"},
Verbs: []string{"create", "delete", "get", "list", "watch", "patch", "update"},
},
{
NonResourceURLs: []string{"/healthz", "/version"},
Verbs: []string{"get"},
},
{
APIGroups: []string{"coordination.k8s.io"},
Resources: []string{"leases"},
Verbs: []string{"create", "list", "watch"},
},
{
APIGroups: []string{"coordination.k8s.io"},
Resources: []string{"leases"},
ResourceNames: []string{"gardenlet-leader-election"},
Verbs: []string{"get", "update"},
},
{
APIGroups: []string{"coordination.k8s.io"},
Resources: []string{"leases"},
ResourceNames: []string{"gardener-extension-heartbeat"},
Verbs: []string{"get"},
},
{
APIGroups: []string{"networking.istio.io"},
Resources: []string{"virtualservices"},
ResourceNames: []string{"kube-apiserver"},
Verbs: []string{"list"},
},
{
APIGroups: []string{"networking.istio.io"},
Resources: []string{"destinationrules", "gateways", "virtualservices", "envoyfilters"},
Verbs: []string{"delete"},
},
},
}
}
func getAPIServerSNIClusterRole(labels map[string]string, apiServerSNIEnabled bool) *rbacv1.ClusterRole {
clusterRole := rbacv1.ClusterRole{
TypeMeta: metav1.TypeMeta{Kind: "ClusterRole", APIVersion: rbacv1.SchemeGroupVersion.String()},
ObjectMeta: metav1.ObjectMeta{
Name: "gardener.cloud:system:gardenlet:apiserver-sni",
Labels: labels,
ResourceVersion: "1",
},
}
if apiServerSNIEnabled {
clusterRole.Rules = []rbacv1.PolicyRule{
{
APIGroups: []string{"networking.istio.io"},
Resources: []string{"envoyfilters", "gateways", "virtualservices"},
Verbs: []string{"create"},
},
{
APIGroups: []string{"networking.istio.io"},
Resources: []string{"envoyfilters", "gateways"},
ResourceNames: []string{"proxy-protocol"},
Verbs: []string{"get", "patch", "update"},
},
{
APIGroups: []string{"networking.istio.io"},
Resources: []string{"virtualservices"},
ResourceNames: []string{"proxy-protocol-blackhole"},
Verbs: []string{"get", "patch", "update"},
},
}
} else {
clusterRole.Rules = []rbacv1.PolicyRule{
{
APIGroups: []string{"networking.istio.io"},
Resources: []string{"envoyfilters", "gateways"},
ResourceNames: []string{"proxy-protocol"},
Verbs: []string{"delete"},
},
{
APIGroups: []string{"networking.istio.io"},
Resources: []string{"virtualservices"},
ResourceNames: []string{"proxy-protocol-blackhole"},
Verbs: []string{"delete"},
},
}
}
return &clusterRole
}
func getManagedIstioClusterRole(labels map[string]string) *rbacv1.ClusterRole {
return &rbacv1.ClusterRole{
TypeMeta: metav1.TypeMeta{Kind: "ClusterRole", APIVersion: rbacv1.SchemeGroupVersion.String()},
ObjectMeta: metav1.ObjectMeta{
Name: "gardener.cloud:system:gardenlet:managed-istio",
Labels: labels,
ResourceVersion: "1",
},
Rules: []rbacv1.PolicyRule{
{
APIGroups: []string{"networking.istio.io"},
Resources: []string{"destinationrules", "gateways", "virtualservices", "envoyfilters", "sidecars"},
Verbs: []string{"create", "get", "list", "watch", "patch", "update"},
},
{
APIGroups: []string{"security.istio.io"},
Resources: []string{"peerauthentications"},
Verbs: []string{"create"},
},
{
APIGroups: []string{"security.istio.io"},
Resources: []string{"peerauthentications"},
ResourceNames: []string{"default"},
Verbs: []string{"get", "patch", "update"},
},
{
APIGroups: []string{"admissionregistration.k8s.io"},
Resources: []string{"validatingwebhookconfigurations"},
ResourceNames: []string{"istiod"},
Verbs: []string{"get", "patch", "update"},
},
},
}
}
func getGardenletClusterRoleBinding(labels map[string]string, serviceAccountName string) *rbacv1.ClusterRoleBinding {
return &rbacv1.ClusterRoleBinding{
TypeMeta: metav1.TypeMeta{Kind: "ClusterRoleBinding", APIVersion: rbacv1.SchemeGroupVersion.String()},
ObjectMeta: metav1.ObjectMeta{
Name: "gardener.cloud:system:gardenlet",
Labels: labels,
ResourceVersion: "1",
},
RoleRef: rbacv1.RoleRef{
APIGroup: rbacv1.SchemeGroupVersion.Group,
Kind: "ClusterRole",
Name: "gardener.cloud:system:gardenlet",
},
Subjects: []rbacv1.Subject{
{
Kind: "ServiceAccount",
Name: serviceAccountName,
Namespace: gardencorev1beta1constants.GardenNamespace,
},
},
}
}
func getAPIServerSNIClusterRoleBinding(labels map[string]string, serviceAccountName string) *rbacv1.ClusterRoleBinding {
return &rbacv1.ClusterRoleBinding{
TypeMeta: metav1.TypeMeta{Kind: "ClusterRoleBinding", APIVersion: rbacv1.SchemeGroupVersion.String()},
ObjectMeta: metav1.ObjectMeta{
Name: "gardener.cloud:system:gardenlet:apiserver-sni",
Labels: labels,
ResourceVersion: "1",
},
RoleRef: rbacv1.RoleRef{
APIGroup: rbacv1.SchemeGroupVersion.Group,
Kind: "ClusterRole",
Name: "gardener.cloud:system:gardenlet:apiserver-sni",
},
Subjects: []rbacv1.Subject{
{
Kind: "ServiceAccount",
Name: serviceAccountName,
Namespace: gardencorev1beta1constants.GardenNamespace,
},
},
}
}
func getManagedIstioClusterRoleBinding(labels map[string]string, serviceAccountName string) *rbacv1.ClusterRoleBinding {
return &rbacv1.ClusterRoleBinding{
TypeMeta: metav1.TypeMeta{Kind: "ClusterRoleBinding", APIVersion: rbacv1.SchemeGroupVersion.String()},
ObjectMeta: metav1.ObjectMeta{
Name: "gardener.cloud:system:gardenlet:managed-istio",
Labels: labels,
ResourceVersion: "1",
},
RoleRef: rbacv1.RoleRef{
APIGroup: rbacv1.SchemeGroupVersion.Group,
Kind: "ClusterRole",
Name: "gardener.cloud:system:gardenlet:managed-istio",
},
Subjects: []rbacv1.Subject{
{
Kind: "ServiceAccount",
Name: serviceAccountName,
Namespace: gardencorev1beta1constants.GardenNamespace,
},
},
}
}
func getGardenGardenletRole(labels map[string]string) *rbacv1.Role {
return &rbacv1.Role{
TypeMeta: metav1.TypeMeta{Kind: "Role", APIVersion: rbacv1.SchemeGroupVersion.String()},
ObjectMeta: metav1.ObjectMeta{
Name: "gardener.cloud:system:gardenlet",
Namespace: "garden",
Labels: labels,
ResourceVersion: "1",
},
Rules: []rbacv1.PolicyRule{
{
APIGroups: []string{""},
Resources: []string{"events"},
Verbs: []string{"get", "list", "create", "patch", "update"},
},
{
APIGroups: []string{"apps"},
Resources: []string{"daemonsets"},
ResourceNames: []string{"fluent-bit"},
Verbs: []string{"delete", "get", "patch", "update"},
},
{
APIGroups: []string{"apps"},
Resources: []string{"daemonsets"},
Verbs: []string{"create"},
},
},
}
}
func getGardenGardenletRoleBinding(labels map[string]string, serviceAccountName string) *rbacv1.RoleBinding {
return &rbacv1.RoleBinding{
TypeMeta: metav1.TypeMeta{Kind: "RoleBinding", APIVersion: rbacv1.SchemeGroupVersion.String()},
ObjectMeta: metav1.ObjectMeta{
Name: "gardener.cloud:system:gardenlet",
Namespace: "garden",
Labels: labels,
ResourceVersion: "1",
},
RoleRef: rbacv1.RoleRef{
APIGroup: rbacv1.SchemeGroupVersion.Group,
Kind: "Role",
Name: "gardener.cloud:system:gardenlet",
},
Subjects: []rbacv1.Subject{
{
Kind: "ServiceAccount",
Name: serviceAccountName,
Namespace: gardencorev1beta1constants.GardenNamespace,
},
},
}
}
// ValidateGardenletChartServiceAccount validates the Service Account of the Gardenlet chart.
func ValidateGardenletChartServiceAccount(ctx context.Context, c client.Client, hasSeedClientConnectionKubeconfig bool, expectedLabels map[string]string, serviceAccountName string) {
serviceAccount := &corev1.ServiceAccount{
ObjectMeta: metav1.ObjectMeta{
Name: serviceAccountName,
Namespace: gardencorev1beta1constants.GardenNamespace,
},
}
if hasSeedClientConnectionKubeconfig {
err := c.Get(
ctx,
kutil.Key(serviceAccount.Namespace, serviceAccount.Name),
serviceAccount,
)
Expect(err).To(HaveOccurred())
Expect(apierrors.IsNotFound(err)).To(BeTrue())
return
}
expectedServiceAccount := *serviceAccount
expectedServiceAccount.Labels = expectedLabels
Expect(c.Get(
ctx,
kutil.Key(serviceAccount.Namespace, serviceAccount.Name),
serviceAccount,
)).ToNot(HaveOccurred())
Expect(serviceAccount.Labels).To(DeepEqual(expectedServiceAccount.Labels))
}
// ComputeExpectedGardenletConfiguration computes the expected Gardenlet configuration based
// on input parameters.
func ComputeExpectedGardenletConfiguration(
hasGardenClientConnectionKubeconfig, hasSeedClientConnectionKubeconfig bool,
bootstrapKubeconfig *corev1.SecretReference,
kubeconfigSecret *corev1.SecretReference,
seedConfig *gardenletconfigv1alpha1.SeedConfig,
featureGates map[string]bool) gardenletconfigv1alpha1.GardenletConfiguration {
var (
zero = 0
one = 1
three = 3
five = 5
twenty = 20
logLevelInfo = "info"
logFormatJson = "json"
lockObjectName = "gardenlet-leader-election"
lockObjectNamespace = "garden"
defaultCentralLokiStorage = resource.MustParse("100Gi")
)
config := gardenletconfigv1alpha1.GardenletConfiguration{
TypeMeta: metav1.TypeMeta{
Kind: "GardenletConfiguration",
APIVersion: "gardenlet.config.gardener.cloud/v1alpha1",
},
GardenClientConnection: &gardenletconfigv1alpha1.GardenClientConnection{
ClientConnectionConfiguration: baseconfigv1alpha1.ClientConnectionConfiguration{
QPS: 100,
Burst: 130,
},
KubeconfigValidity: &gardenletconfigv1alpha1.KubeconfigValidity{
AutoRotationJitterPercentageMin: pointer.Int32(70),
AutoRotationJitterPercentageMax: pointer.Int32(90),
},
},
SeedClientConnection: &gardenletconfigv1alpha1.SeedClientConnection{
ClientConnectionConfiguration: baseconfigv1alpha1.ClientConnectionConfiguration{
QPS: 100,
Burst: 130,
},
},
ShootClientConnection: &gardenletconfigv1alpha1.ShootClientConnection{
ClientConnectionConfiguration: baseconfigv1alpha1.ClientConnectionConfiguration{
QPS: 25,
Burst: 50,
},
},
Controllers: &gardenletconfigv1alpha1.GardenletControllerConfiguration{
BackupBucket: &gardenletconfigv1alpha1.BackupBucketControllerConfiguration{
ConcurrentSyncs: &twenty,
},
BackupEntry: &gardenletconfigv1alpha1.BackupEntryControllerConfiguration{
ConcurrentSyncs: &twenty,
DeletionGracePeriodHours: &zero,
},
BackupEntryMigration: &gardenletconfigv1alpha1.BackupEntryMigrationControllerConfiguration{
ConcurrentSyncs: &five,
SyncPeriod: &metav1.Duration{
Duration: time.Minute,
},
GracePeriod: &metav1.Duration{
Duration: 10 * time.Minute,
},
LastOperationStaleDuration: &metav1.Duration{
Duration: 2 * time.Minute,
},
},
Bastion: &gardenletconfigv1alpha1.BastionControllerConfiguration{
ConcurrentSyncs: &twenty,
},
Seed: &gardenletconfigv1alpha1.SeedControllerConfiguration{
ConcurrentSyncs: &five,
SyncPeriod: &metav1.Duration{
Duration: 1 * time.Hour,
},
LeaseResyncSeconds: pointer.Int32(2),
LeaseResyncMissThreshold: pointer.Int32(10),
},
Shoot: &gardenletconfigv1alpha1.ShootControllerConfiguration{
ReconcileInMaintenanceOnly: pointer.Bool(false),
RespectSyncPeriodOverwrite: pointer.Bool(false),
ConcurrentSyncs: &twenty,
SyncPeriod: &metav1.Duration{
Duration: time.Hour,
},
RetryDuration: &metav1.Duration{
Duration: 12 * time.Hour,
},
DNSEntryTTLSeconds: pointer.Int64(120),
},
ManagedSeed: &gardenletconfigv1alpha1.ManagedSeedControllerConfiguration{
ConcurrentSyncs: &five,
JitterUpdates: pointer.Bool(false),
SyncPeriod: &metav1.Duration{
Duration: 1 * time.Hour,
},
WaitSyncPeriod: &metav1.Duration{
Duration: 15 * time.Second,
},
SyncJitterPeriod: &metav1.Duration{
Duration: 300000000000,
},
},
ShootCare: &gardenletconfigv1alpha1.ShootCareControllerConfiguration{
ConcurrentSyncs: &five,
SyncPeriod: &metav1.Duration{
Duration: 30 * time.Second,
},
StaleExtensionHealthChecks: &gardenletconfigv1alpha1.StaleExtensionHealthChecks{
Enabled: true,
Threshold: &metav1.Duration{Duration: 300000000000},
},
ConditionThresholds: []gardenletconfigv1alpha1.ConditionThreshold{
{
Type: string(gardencorev1beta1.ShootAPIServerAvailable),
Duration: metav1.Duration{
Duration: 1 * time.Minute,
},
},
{
Type: string(gardencorev1beta1.ShootControlPlaneHealthy),
Duration: metav1.Duration{
Duration: 1 * time.Minute,
},
},
{
Type: string(gardencorev1beta1.ShootSystemComponentsHealthy),
Duration: metav1.Duration{
Duration: 1 * time.Minute,
},
},
{
Type: string(gardencorev1beta1.ShootEveryNodeReady),
Duration: metav1.Duration{
Duration: 5 * time.Minute,
},
},
},
WebhookRemediatorEnabled: pointer.Bool(false),
},
SeedCare: &gardenletconfigv1alpha1.SeedCareControllerConfiguration{
SyncPeriod: &metav1.Duration{
Duration: 30 * time.Second,
},
ConditionThresholds: []gardenletconfigv1alpha1.ConditionThreshold{
{
Type: string(gardencorev1beta1.SeedSystemComponentsHealthy),
Duration: metav1.Duration{
Duration: 1 * time.Minute,
},
},
},
},
ShootMigration: &gardenletconfigv1alpha1.ShootMigrationControllerConfiguration{
ConcurrentSyncs: &five,
SyncPeriod: &metav1.Duration{
Duration: time.Minute,
},
GracePeriod: &metav1.Duration{
Duration: 2 * time.Hour,
},
LastOperationStaleDuration: &metav1.Duration{
Duration: 10 * time.Minute,
},
},
ShootSecret: &gardenletconfigv1alpha1.ShootSecretControllerConfiguration{
ConcurrentSyncs: &five,
},
ShootStateSync: &gardenletconfigv1alpha1.ShootStateSyncControllerConfiguration{
ConcurrentSyncs: &five,
},
ControllerInstallation: &gardenletconfigv1alpha1.ControllerInstallationControllerConfiguration{
ConcurrentSyncs: &twenty,
},
ControllerInstallationCare: &gardenletconfigv1alpha1.ControllerInstallationCareControllerConfiguration{
ConcurrentSyncs: &twenty,
SyncPeriod: &metav1.Duration{Duration: 30 * time.Second},
},
ControllerInstallationRequired: &gardenletconfigv1alpha1.ControllerInstallationRequiredControllerConfiguration{
ConcurrentSyncs: &one,
},
SeedAPIServerNetworkPolicy: &gardenletconfigv1alpha1.SeedAPIServerNetworkPolicyControllerConfiguration{
ConcurrentSyncs: &three,
},
},
LeaderElection: &baseconfigv1alpha1.LeaderElectionConfiguration{
LeaderElect: pointer.Bool(true),
LeaseDuration: metav1.Duration{Duration: 15 * time.Second},
RenewDeadline: metav1.Duration{Duration: 10 * time.Second},
RetryPeriod: metav1.Duration{Duration: 2 * time.Second},
ResourceLock: resourcelock.LeasesResourceLock,
ResourceName: lockObjectName,
ResourceNamespace: lockObjectNamespace,
},
LogLevel: logLevelInfo,
LogFormat: logFormatJson,
Logging: &gardenletconfigv1alpha1.Logging{
Enabled: pointer.BoolPtr(false),
Loki: &gardenletconfigv1alpha1.Loki{
Enabled: pointer.BoolPtr(false),
Garden: &gardenletconfigv1alpha1.GardenLoki{
Storage: &defaultCentralLokiStorage,
},
},
ShootEventLogging: &gardenletconfigv1alpha1.ShootEventLogging{
Enabled: pointer.Bool(false),
},
},
Server: gardenletconfigv1alpha1.ServerConfiguration{
HealthProbes: &gardenletconfigv1alpha1.Server{
BindAddress: "0.0.0.0",
Port: 2728,
},
Metrics: &gardenletconfigv1alpha1.Server{
BindAddress: "0.0.0.0",
Port: 2729,
},
},
Debugging: &baseconfigv1alpha1.DebuggingConfiguration{
EnableProfiling: pointer.Bool(false),
EnableContentionProfiling: pointer.Bool(false),
},
FeatureGates: featureGates,
Resources: &gardenletconfigv1alpha1.ResourcesConfiguration{
Capacity: corev1.ResourceList{
"shoots": resource.MustParse("250"),
},
},
SNI: &gardenletconfigv1alpha1.SNI{Ingress: &gardenletconfigv1alpha1.SNIIngress{
ServiceName: pointer.String(gardencorev1beta1constants.DefaultSNIIngressServiceName),
Namespace: pointer.String(gardencorev1beta1constants.DefaultSNIIngressNamespace),
Labels: map[string]string{"app": "istio-ingressgateway", "istio": "ingressgateway"},
}},
Monitoring: &gardenletconfigv1alpha1.MonitoringConfig{
Shoot: &gardenletconfigv1alpha1.ShootMonitoringConfig{
Enabled: pointer.Bool(true),
},
},
ETCDConfig: &gardenletconfigv1alpha1.ETCDConfig{
BackupCompactionController: &gardenletconfigv1alpha1.BackupCompactionController{
EnableBackupCompaction: pointer.Bool(false),
EventsThreshold: pointer.Int64(1000000),
Workers: pointer.Int64(3),
},
CustodianController: &gardenletconfigv1alpha1.CustodianController{
Workers: pointer.Int64(10),
},
ETCDController: &gardenletconfigv1alpha1.ETCDController{
Workers: pointer.Int64(50),
},
},
}
if hasGardenClientConnectionKubeconfig {
config.GardenClientConnection.Kubeconfig = "/etc/gardenlet/kubeconfig-garden/kubeconfig"
}
if hasSeedClientConnectionKubeconfig {
config.SeedClientConnection.Kubeconfig = "/etc/gardenlet/kubeconfig-seed/kubeconfig"
}
if bootstrapKubeconfig != nil {
config.GardenClientConnection.BootstrapKubeconfig = bootstrapKubeconfig
}
config.GardenClientConnection.KubeconfigSecret = kubeconfigSecret
if seedConfig != nil {
config.SeedConfig = seedConfig
}
return config
}
// VerifyGardenletComponentConfigConfigMap verifies that the actual Gardenlet component config config map equals the expected config map.
func VerifyGardenletComponentConfigConfigMap(
ctx context.Context,
c client.Client,
universalDecoder runtime.Decoder,
expectedGardenletConfig gardenletconfigv1alpha1.GardenletConfiguration,
expectedLabels map[string]string,
uniqueName string,
) {
componentConfigCm := getEmptyGardenletConfigMap()
expectedComponentConfigCm := getEmptyGardenletConfigMap()
expectedComponentConfigCm.Labels = expectedLabels
if err := c.Get(ctx, kutil.Key(componentConfigCm.Namespace, uniqueName), componentConfigCm); err != nil {
if !apierrors.IsNotFound(err) {
ginkgo.Fail(err.Error())
}
list := &corev1.ConfigMapList{}
Expect(c.List(ctx, list)).ToNot(HaveOccurred())
cmNames := ""
for _, cm := range list.Items {
cmNames += " " + cm.Name
}
ginkgo.Fail("Could not find unique gardenlet configmap " + uniqueName + ", possibly the unique name has changed. Found:" + cmNames)
}
Expect(componentConfigCm.Labels).To(DeepEqual(expectedComponentConfigCm.Labels))
// unmarshal Gardenlet Configuration from deployed Config Map
componentConfigYaml := componentConfigCm.Data["config.yaml"]
Expect(componentConfigYaml).ToNot(HaveLen(0))
gardenletConfig := &gardenletconfigv1alpha1.GardenletConfiguration{}
_, _, err := universalDecoder.Decode([]byte(componentConfigYaml), nil, gardenletConfig)
Expect(err).ToNot(HaveOccurred())
Expect(*gardenletConfig).To(DeepEqual(expectedGardenletConfig))
}
func getEmptyGardenletConfigMap() *corev1.ConfigMap {
return &corev1.ConfigMap{
ObjectMeta: metav1.ObjectMeta{
Name: "gardenlet-configmap",
Namespace: gardencorev1beta1constants.GardenNamespace,
},
}
}
// ComputeExpectedGardenletDeploymentSpec computes the expected Gardenlet deployment spec based on input parameters
// needs to equal exactly what is deployed via the helm chart (including defaults set in the helm chart)
// as a consequence, if non-optional changes to the helm chart are made, these tests will fail by design
func ComputeExpectedGardenletDeploymentSpec(
deploymentConfiguration *seedmanagement.GardenletDeployment,
image seedmanagement.Image,
gardenClientConnectionKubeconfig, seedClientConnectionKubeconfig *string,
expectedLabels map[string]string,
imageVectorOverwrite, componentImageVectorOverwrites *string,
uniqueName map[string]string,
) (appsv1.DeploymentSpec, error) {
if image.Repository == nil || image.Tag == nil {
return appsv1.DeploymentSpec{}, fmt.Errorf("the image repository and tag must be provided")
}
deployment := appsv1.DeploymentSpec{
RevisionHistoryLimit: pointer.Int32(10),
Replicas: pointer.Int32(1),
Selector: &metav1.LabelSelector{
MatchLabels: map[string]string{
"app": "gardener",
"role": "gardenlet",
},
},
Template: corev1.PodTemplateSpec{
ObjectMeta: metav1.ObjectMeta{
Labels: expectedLabels,
},
Spec: corev1.PodSpec{
PriorityClassName: gardencorev1beta1constants.PriorityClassNameSeedSystemCritical,
ServiceAccountName: "gardenlet",
Containers: []corev1.Container{
{
Name: "gardenlet",
Image: fmt.Sprintf("%s:%s", *image.Repository, *image.Tag),
ImagePullPolicy: corev1.PullIfNotPresent,
Args: []string{
"--config=/etc/gardenlet/config/config.yaml",
},
LivenessProbe: &corev1.Probe{
ProbeHandler: corev1.ProbeHandler{
HTTPGet: &corev1.HTTPGetAction{
Path: "/healthz",
Port: intstr.IntOrString{IntVal: 2728},
Scheme: corev1.URISchemeHTTP,
},
},
InitialDelaySeconds: 15,
TimeoutSeconds: 5,
},
ReadinessProbe: &corev1.Probe{
ProbeHandler: corev1.ProbeHandler{
HTTPGet: &corev1.HTTPGetAction{
Path: "/readyz",
Port: intstr.IntOrString{IntVal: 2728},
Scheme: corev1.URISchemeHTTP,
},
},
InitialDelaySeconds: 10,
TimeoutSeconds: 5,
},
Resources: corev1.ResourceRequirements{
Requests: corev1.ResourceList{
corev1.ResourceCPU: resource.MustParse("100m"),
corev1.ResourceMemory: resource.MustParse("100Mi"),
},
},