/
actuator.go
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/
actuator.go
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// Copyright (c) 2019 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 genericactuator
import (
"bytes"
"context"
"time"
extensionscontroller "github.com/gardener/gardener/extensions/pkg/controller"
"github.com/gardener/gardener/extensions/pkg/controller/controlplane"
"github.com/gardener/gardener/extensions/pkg/webhook"
extensionswebhookshoot "github.com/gardener/gardener/extensions/pkg/webhook/shoot"
v1beta1constants "github.com/gardener/gardener/pkg/apis/core/v1beta1/constants"
extensionsv1alpha1 "github.com/gardener/gardener/pkg/apis/extensions/v1alpha1"
gardenerkubernetes "github.com/gardener/gardener/pkg/client/kubernetes"
"github.com/gardener/gardener/pkg/utils/chart"
"github.com/gardener/gardener/pkg/utils/flow"
"github.com/gardener/gardener/pkg/utils/imagevector"
kutil "github.com/gardener/gardener/pkg/utils/kubernetes"
"github.com/gardener/gardener/pkg/utils/managedresources"
secretutil "github.com/gardener/gardener/pkg/utils/secrets"
"github.com/gardener/gardener-resource-manager/pkg/manager"
"github.com/go-logr/logr"
"github.com/pkg/errors"
admissionregistrationv1beta1 "k8s.io/api/admissionregistration/v1beta1"
appsv1 "k8s.io/api/apps/v1"
corev1 "k8s.io/api/core/v1"
networkingv1 "k8s.io/api/networking/v1"
apierrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime/serializer/json"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/rest"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/runtime/inject"
)
// ValuesProvider provides values for the 2 charts applied by this actuator.
type ValuesProvider interface {
// GetConfigChartValues returns the values for the config chart applied by this actuator.
GetConfigChartValues(ctx context.Context, cp *extensionsv1alpha1.ControlPlane, cluster *extensionscontroller.Cluster) (map[string]interface{}, error)
// GetControlPlaneChartValues returns the values for the control plane chart applied by this actuator.
GetControlPlaneChartValues(ctx context.Context, cp *extensionsv1alpha1.ControlPlane, cluster *extensionscontroller.Cluster, checksums map[string]string, scaledDown bool) (map[string]interface{}, error)
// GetControlPlaneShootChartValues returns the values for the control plane shoot chart applied by this actuator.
GetControlPlaneShootChartValues(ctx context.Context, cp *extensionsv1alpha1.ControlPlane, cluster *extensionscontroller.Cluster, checksums map[string]string) (map[string]interface{}, error)
// GetStorageClassesChartValues returns the values for the storage classes chart applied by this actuator.
GetStorageClassesChartValues(ctx context.Context, cp *extensionsv1alpha1.ControlPlane, cluster *extensionscontroller.Cluster) (map[string]interface{}, error)
// GetControlPlaneExposureChartValues returns the values for the control plane exposure chart applied by this actuator.
GetControlPlaneExposureChartValues(ctx context.Context, cp *extensionsv1alpha1.ControlPlane, cluster *extensionscontroller.Cluster, checksums map[string]string) (map[string]interface{}, error)
}
// NewActuator creates a new Actuator that acts upon and updates the status of ControlPlane resources.
// It creates / deletes the given secrets and applies / deletes the given charts, using the given image vector and
// the values provided by the given values provider.
func NewActuator(
providerName string,
secrets, exposureSecrets secretutil.Interface,
configChart, controlPlaneChart, controlPlaneShootChart, storageClassesChart, controlPlaneExposureChart chart.Interface,
vp ValuesProvider,
chartRendererFactory extensionscontroller.ChartRendererFactory,
imageVector imagevector.ImageVector,
configName string,
shootWebhooks []admissionregistrationv1beta1.MutatingWebhook,
webhookServerPort int,
logger logr.Logger,
) controlplane.Actuator {
return &actuator{
providerName: providerName,
secrets: secrets,
exposureSecrets: exposureSecrets,
configChart: configChart,
controlPlaneChart: controlPlaneChart,
controlPlaneShootChart: controlPlaneShootChart,
storageClassesChart: storageClassesChart,
controlPlaneExposureChart: controlPlaneExposureChart,
vp: vp,
chartRendererFactory: chartRendererFactory,
imageVector: imageVector,
configName: configName,
shootWebhooks: shootWebhooks,
webhookServerPort: webhookServerPort,
logger: logger.WithName("controlplane-actuator"),
}
}
// actuator is an Actuator that acts upon and updates the status of ControlPlane resources.
type actuator struct {
providerName string
secrets secretutil.Interface
exposureSecrets secretutil.Interface
configChart chart.Interface
controlPlaneChart chart.Interface
controlPlaneShootChart chart.Interface
storageClassesChart chart.Interface
controlPlaneExposureChart chart.Interface
vp ValuesProvider
chartRendererFactory extensionscontroller.ChartRendererFactory
imageVector imagevector.ImageVector
configName string
shootWebhooks []admissionregistrationv1beta1.MutatingWebhook
webhookServerPort int
clientset kubernetes.Interface
gardenerClientset gardenerkubernetes.Interface
chartApplier gardenerkubernetes.ChartApplier
client client.Client
logger logr.Logger
}
// InjectFunc enables injecting Kubernetes dependencies into actuator's dependencies.
func (a *actuator) InjectFunc(f inject.Func) error {
return f(a.vp)
}
// InjectConfig injects the given config into the actuator.
func (a *actuator) InjectConfig(config *rest.Config) error {
// Create clientset
var err error
a.clientset, err = kubernetes.NewForConfig(config)
if err != nil {
return errors.Wrap(err, "could not create Kubernetes client")
}
// Create Gardener clientset
a.gardenerClientset, err = gardenerkubernetes.NewWithConfig(gardenerkubernetes.WithRESTConfig(config))
if err != nil {
return errors.Wrap(err, "could not create Gardener client")
}
a.chartApplier = a.gardenerClientset.ChartApplier()
return nil
}
// InjectClient injects the given client into the valuesProvider.
func (a *actuator) InjectClient(client client.Client) error {
a.client = client
return nil
}
const (
// ControlPlaneShootChartResourceName is the name of the managed resource for the control plane
ControlPlaneShootChartResourceName = "extension-controlplane-shoot"
// StorageClassesChartResourceName is the name of the managed resource for the extension control plane storageclasses
StorageClassesChartResourceName = "extension-controlplane-storageclasses"
// ShootWebhooksResourceName is the name of the managed resource for the extension control plane webhooks
ShootWebhooksResourceName = "extension-controlplane-shoot-webhooks"
)
// Reconcile reconciles the given controlplane and cluster, creating or updating the additional Shoot
// control plane components as needed.
func (a *actuator) Reconcile(
ctx context.Context,
cp *extensionsv1alpha1.ControlPlane,
cluster *extensionscontroller.Cluster,
) (bool, error) {
if cp.Spec.Purpose != nil && *cp.Spec.Purpose == extensionsv1alpha1.Exposure {
return a.reconcileControlPlaneExposure(ctx, cp, cluster)
}
return a.reconcileControlPlane(ctx, cp, cluster)
}
func (a *actuator) reconcileControlPlaneExposure(
ctx context.Context,
cp *extensionsv1alpha1.ControlPlane,
cluster *extensionscontroller.Cluster,
) (bool, error) {
if a.controlPlaneExposureChart == nil {
return false, nil
}
// Deploy secrets
checksums := make(map[string]string)
if a.exposureSecrets != nil {
a.logger.Info("Deploying control plane exposure secrets", "controlplane", kutil.ObjectName(cp))
deployedSecrets, err := a.exposureSecrets.Deploy(ctx, a.clientset, a.gardenerClientset, cp.Namespace)
if err != nil {
return false, errors.Wrapf(err, "could not deploy control plane exposure secrets for controlplane '%s'", kutil.ObjectName(cp))
}
// Compute needed checksums
checksums = controlplane.ComputeChecksums(deployedSecrets, nil)
}
// Get control plane exposure chart values
values, err := a.vp.GetControlPlaneExposureChartValues(ctx, cp, cluster, checksums)
if err != nil {
return false, err
}
// Apply control plane exposure chart
a.logger.Info("Applying control plane exposure chart", "controlplaneexposure", kutil.ObjectName(cp), "values", values)
version := cluster.Shoot.Spec.Kubernetes.Version
if err := a.controlPlaneExposureChart.Apply(ctx, a.chartApplier, cp.Namespace, a.imageVector, a.gardenerClientset.Version(), version, values); err != nil {
return false, errors.Wrapf(err, "could not apply control plane exposure chart for controlplane '%s'", kutil.ObjectName(cp))
}
return false, nil
}
// reconcileControlPlane reconciles the given controlplane and cluster, creating or updating the additional Shoot
// control plane components as needed.
func (a *actuator) reconcileControlPlane(
ctx context.Context,
cp *extensionsv1alpha1.ControlPlane,
cluster *extensionscontroller.Cluster,
) (bool, error) {
if len(a.shootWebhooks) > 0 {
if err := ReconcileShootWebhooks(ctx, a.client, cp.Namespace, a.providerName, a.webhookServerPort, a.shootWebhooks); err != nil {
return false, errors.Wrapf(err, "could not reconcile shoot webhooks")
}
}
// Deploy secrets
a.logger.Info("Deploying secrets", "controlplane", kutil.ObjectName(cp))
deployedSecrets, err := a.secrets.Deploy(ctx, a.clientset, a.gardenerClientset, cp.Namespace)
if err != nil {
return false, errors.Wrapf(err, "could not deploy secrets for controlplane '%s'", kutil.ObjectName(cp))
}
// Get config chart values
if a.configChart != nil {
values, err := a.vp.GetConfigChartValues(ctx, cp, cluster)
if err != nil {
return false, err
}
// Apply config chart
a.logger.Info("Applying configuration chart", "controlplane", kutil.ObjectName(cp))
if err := a.configChart.Apply(ctx, a.chartApplier, cp.Namespace, nil, "", "", values); err != nil {
return false, errors.Wrapf(err, "could not apply configuration chart for controlplane '%s'", kutil.ObjectName(cp))
}
}
// Compute all needed checksums
checksums, err := a.computeChecksums(ctx, deployedSecrets, cp.Namespace)
if err != nil {
return false, err
}
var (
requeue = false
scaledDown = false
)
if extensionscontroller.IsHibernated(cluster) {
dep := &appsv1.Deployment{}
if err := a.client.Get(ctx, client.ObjectKey{Namespace: cp.Namespace, Name: v1beta1constants.DeploymentNameKubeAPIServer}, dep); client.IgnoreNotFound(err) != nil {
return false, errors.Wrapf(err, "could not get deployment '%s/%s'", cp.Namespace, v1beta1constants.DeploymentNameKubeAPIServer)
}
// If the cluster is hibernated, check if kube-apiserver has been already scaled down. If it is not yet scaled down
// then we requeue the `ControlPlane` CRD in order to give the provider-specific control plane components time to
// properly prepare the cluster for hibernation (whatever needs to be done). If the kube-apiserver is already scaled down
// then we allow continuing the reconciliation.
if cluster.Shoot.DeletionTimestamp == nil {
if dep.Spec.Replicas != nil && *dep.Spec.Replicas > 0 {
requeue = true
} else {
scaledDown = true
}
// Similarly, if a hibernated shoot is deleted then we might need to wake up all the provider-specific components. We
// wait until the kube-apiserver is woken up again before we wake up the provider-specific components.
} else {
if dep.Spec.Replicas == nil || *dep.Spec.Replicas == 0 {
return true, nil
}
}
}
// Get control plane chart values
values, err := a.vp.GetControlPlaneChartValues(ctx, cp, cluster, checksums, scaledDown)
if err != nil {
return false, err
}
// Apply control plane chart
version := cluster.Shoot.Spec.Kubernetes.Version
a.logger.Info("Applying control plane chart", "controlplane", kutil.ObjectName(cp))
if err := a.controlPlaneChart.Apply(ctx, a.chartApplier, cp.Namespace, a.imageVector, a.gardenerClientset.Version(), version, values); err != nil {
return false, errors.Wrapf(err, "could not apply control plane chart for controlplane '%s'", kutil.ObjectName(cp))
}
// Create shoot chart renderer
chartRenderer, err := a.chartRendererFactory.NewChartRendererForShoot(version)
if err != nil {
return false, errors.Wrapf(err, "could not create chart renderer for shoot '%s'", cp.Namespace)
}
// Get control plane shoot chart values
values, err = a.vp.GetControlPlaneShootChartValues(ctx, cp, cluster, checksums)
if err != nil {
return false, err
}
if err := extensionscontroller.RenderChartAndCreateManagedResource(ctx, cp.Namespace, ControlPlaneShootChartResourceName, a.client, chartRenderer, a.controlPlaneShootChart, values, a.imageVector, metav1.NamespaceSystem, version, true, false); err != nil {
return false, errors.Wrapf(err, "could not apply control plane shoot chart for controlplane '%s'", kutil.ObjectName(cp))
}
// Get storage classes
values, err = a.vp.GetStorageClassesChartValues(ctx, cp, cluster)
if err != nil {
return false, err
}
if err := extensionscontroller.RenderChartAndCreateManagedResource(ctx, cp.Namespace, StorageClassesChartResourceName, a.client, chartRenderer, a.storageClassesChart, values, a.imageVector, metav1.NamespaceSystem, version, true, true); err != nil {
return false, errors.Wrapf(err, "could not apply storage classes chart for controlplane '%s'", kutil.ObjectName(cp))
}
return requeue, nil
}
// Delete reconciles the given controlplane and cluster, deleting the additional
// control plane components as needed.
func (a *actuator) Delete(
ctx context.Context,
cp *extensionsv1alpha1.ControlPlane,
cluster *extensionscontroller.Cluster,
) error {
if cp.Spec.Purpose != nil && *cp.Spec.Purpose == extensionsv1alpha1.Exposure {
return a.deleteControlPlaneExposure(ctx, cp, cluster)
}
return a.deleteControlPlane(ctx, cp, cluster)
}
// deleteControlPlaneExposure reconciles the given controlplane and cluster, deleting the additional Seed
// control plane components as needed.
func (a *actuator) deleteControlPlaneExposure(
ctx context.Context,
cp *extensionsv1alpha1.ControlPlane,
cluster *extensionscontroller.Cluster,
) error {
// Delete control plane objects
if a.controlPlaneExposureChart != nil {
a.logger.Info("Deleting control plane exposure with objects", "controlplane", kutil.ObjectName(cp))
if err := a.controlPlaneExposureChart.Delete(ctx, a.client, cp.Namespace); client.IgnoreNotFound(err) != nil {
return errors.Wrapf(err, "could not delete control plane exposure objects for controlplane '%s'", kutil.ObjectName(cp))
}
}
// Delete secrets
if a.exposureSecrets != nil {
a.logger.Info("Deleting secrets for control plane with purpose exposure", "controlplane", kutil.ObjectName(cp))
if err := a.exposureSecrets.Delete(ctx, a.clientset, cp.Namespace); client.IgnoreNotFound(err) != nil {
return errors.Wrapf(err, "could not delete secrets for controlplane exposure '%s'", kutil.ObjectName(cp))
}
}
return nil
}
// deleteControlPlane reconciles the given controlplane and cluster, deleting the additional Shoot
// control plane components as needed.
func (a *actuator) deleteControlPlane(
ctx context.Context,
cp *extensionsv1alpha1.ControlPlane,
cluster *extensionscontroller.Cluster,
) error {
// Delete the managed resources
if err := managedresources.DeleteManagedResource(ctx, a.client, cp.Namespace, StorageClassesChartResourceName); err != nil {
return errors.Wrapf(err, "could not delete managed resource containing storage classes chart for controlplane '%s'", kutil.ObjectName(cp))
}
if err := managedresources.DeleteManagedResource(ctx, a.client, cp.Namespace, ControlPlaneShootChartResourceName); err != nil {
return errors.Wrapf(err, "could not delete managed resource containing shoot chart for controlplane '%s'", kutil.ObjectName(cp))
}
timeoutCtx1, cancel := context.WithTimeout(ctx, 2*time.Minute)
defer cancel()
if err := managedresources.WaitUntilManagedResourceDeleted(timeoutCtx1, a.client, cp.Namespace, StorageClassesChartResourceName); err != nil {
return errors.Wrapf(err, "error while waiting for managed resource containing storage classes chart for controlplane '%s' to be deleted", kutil.ObjectName(cp))
}
timeoutCtx2, cancel := context.WithTimeout(ctx, 2*time.Minute)
defer cancel()
if err := managedresources.WaitUntilManagedResourceDeleted(timeoutCtx2, a.client, cp.Namespace, ControlPlaneShootChartResourceName); err != nil {
return errors.Wrapf(err, "error while waiting for managed resource containing shoot chart for controlplane '%s' to be deleted", kutil.ObjectName(cp))
}
// Delete control plane objects
a.logger.Info("Deleting control plane objects", "controlplane", kutil.ObjectName(cp))
if err := a.controlPlaneChart.Delete(ctx, a.client, cp.Namespace); client.IgnoreNotFound(err) != nil {
return errors.Wrapf(err, "could not delete control plane objects for controlplane '%s'", kutil.ObjectName(cp))
}
if a.configChart != nil {
// Delete config objects
a.logger.Info("Deleting configuration objects", "controlplane", kutil.ObjectName(cp))
if err := a.configChart.Delete(ctx, a.client, cp.Namespace); client.IgnoreNotFound(err) != nil {
return errors.Wrapf(err, "could not delete configuration objects for controlplane '%s'", kutil.ObjectName(cp))
}
}
// Delete secrets
a.logger.Info("Deleting secrets", "controlplane", kutil.ObjectName(cp))
if err := a.secrets.Delete(ctx, a.clientset, cp.Namespace); client.IgnoreNotFound(err) != nil {
return errors.Wrapf(err, "could not delete secrets for controlplane '%s'", kutil.ObjectName(cp))
}
if len(a.shootWebhooks) > 0 {
networkPolicy := extensionswebhookshoot.GetNetworkPolicyMeta(cp.Namespace, a.providerName)
if err := a.client.Delete(ctx, networkPolicy); client.IgnoreNotFound(err) != nil {
return errors.Wrapf(err, "could not delete network policy for shoot webhooks in namespace '%s'", cp.Namespace)
}
if err := managedresources.DeleteManagedResource(ctx, a.client, cp.Namespace, ShootWebhooksResourceName); err != nil {
return errors.Wrapf(err, "could not delete managed resource containing shoot webhooks for controlplane '%s'", kutil.ObjectName(cp))
}
timeoutCtx3, cancel := context.WithTimeout(ctx, 2*time.Minute)
defer cancel()
if err := managedresources.WaitUntilManagedResourceDeleted(timeoutCtx3, a.client, cp.Namespace, ShootWebhooksResourceName); err != nil {
return errors.Wrapf(err, "error while waiting for managed resource containing shoot webhooks for controlplane '%s' to be deleted", kutil.ObjectName(cp))
}
}
return nil
}
// computeChecksums computes and returns all needed checksums. This includes the checksums for the given deployed secrets,
// as well as the cloud provider secret and configmap that are fetched from the cluster.
func (a *actuator) computeChecksums(
ctx context.Context,
deployedSecrets map[string]*corev1.Secret,
namespace string,
) (map[string]string, error) {
// Get cloud provider secret and config from cluster
cpSecret := &corev1.Secret{}
if err := a.client.Get(ctx, client.ObjectKey{Namespace: namespace, Name: v1beta1constants.SecretNameCloudProvider}, cpSecret); err != nil {
return nil, errors.Wrapf(err, "could not get secret '%s/%s'", namespace, v1beta1constants.SecretNameCloudProvider)
}
csSecrets := controlplane.MergeSecretMaps(deployedSecrets, map[string]*corev1.Secret{
v1beta1constants.SecretNameCloudProvider: cpSecret,
})
var csConfigMaps map[string]*corev1.ConfigMap
if len(a.configName) != 0 {
cpConfigMap := &corev1.ConfigMap{}
if err := a.client.Get(ctx, client.ObjectKey{Namespace: namespace, Name: a.configName}, cpConfigMap); err != nil {
return nil, errors.Wrapf(err, "could not get configmap '%s/%s'", namespace, a.configName)
}
csConfigMaps = map[string]*corev1.ConfigMap{
a.configName: cpConfigMap,
}
}
return controlplane.ComputeChecksums(csSecrets, csConfigMaps), nil
}
func marshalWebhooks(webhooks []admissionregistrationv1beta1.MutatingWebhook, name string) ([]byte, error) {
var (
buf = new(bytes.Buffer)
encoder = json.NewYAMLSerializer(json.DefaultMetaFactory, nil, nil)
apiVersion, kind = admissionregistrationv1beta1.SchemeGroupVersion.WithKind("MutatingWebhookConfiguration").ToAPIVersionAndKind()
mutatingWebhookConfiguration = admissionregistrationv1beta1.MutatingWebhookConfiguration{
TypeMeta: metav1.TypeMeta{
APIVersion: apiVersion,
Kind: kind,
},
ObjectMeta: metav1.ObjectMeta{
Name: webhook.NamePrefix + name + webhook.NameSuffixShoot,
},
Webhooks: webhooks,
}
)
if err := encoder.Encode(&mutatingWebhookConfiguration, buf); err != nil {
return nil, err
}
return buf.Bytes(), nil
}
// Restore reconciles the given controlplane and cluster, restoring the additional Shoot
// control plane components as needed.
func (a *actuator) Restore(
ctx context.Context,
cp *extensionsv1alpha1.ControlPlane,
cluster *extensionscontroller.Cluster,
) (bool, error) {
return a.Reconcile(ctx, cp, cluster)
}
// Migrate reconciles the given controlplane and cluster, deleting the additional
// control plane components as needed.
func (a *actuator) Migrate(
ctx context.Context,
cp *extensionsv1alpha1.ControlPlane,
cluster *extensionscontroller.Cluster,
) error {
// Keep objects for shoot managed resources so that they are not deleted from the shoot during the migration
if err := managedresources.KeepManagedResourceObjects(ctx, a.client, cp.Namespace, ControlPlaneShootChartResourceName, true); err != nil {
return errors.Wrapf(err, "could not keep objects of managed resource containing shoot chart for controlplane '%s'", kutil.ObjectName(cp))
}
if err := managedresources.KeepManagedResourceObjects(ctx, a.client, cp.Namespace, StorageClassesChartResourceName, true); err != nil {
return errors.Wrapf(err, "could not keep objects of managed resource containing storage classes chart for controlplane '%s'", kutil.ObjectName(cp))
}
return a.Delete(ctx, cp, cluster)
}
// ReconcileShootWebhooks deploys the shoot webhook configuration, i.e., a network policy to allow the kube-apiserver to
// talk to the provider extension, and a managed resource that contains the MutatingWebhookConfiguration.
func ReconcileShootWebhooks(ctx context.Context, c client.Client, namespace, providerName string, serverPort int, shootWebhooks []admissionregistrationv1beta1.MutatingWebhook) error {
if err := extensionswebhookshoot.EnsureNetworkPolicy(ctx, c, namespace, providerName, serverPort); err != nil {
return errors.Wrapf(err, "could not create or update network policy for shoot webhooks in namespace '%s'", namespace)
}
webhookConfiguration, err := marshalWebhooks(shootWebhooks, providerName)
if err != nil {
return err
}
if err := manager.
NewSecret(c).
WithNamespacedName(namespace, ShootWebhooksResourceName).
WithKeyValues(map[string][]byte{"mutatingwebhookconfiguration.yaml": webhookConfiguration}).
Reconcile(ctx); err != nil {
return errors.Wrapf(err, "could not create or update secret '%s/%s' of managed resource containing shoot webhooks", namespace, ShootWebhooksResourceName)
}
if err := manager.
NewManagedResource(c).
WithNamespacedName(namespace, ShootWebhooksResourceName).
WithSecretRef(ShootWebhooksResourceName).
Reconcile(ctx); err != nil {
return errors.Wrapf(err, "could not create or update managed resource '%s/%s' containing shoot webhooks", namespace, ShootWebhooksResourceName)
}
return nil
}
// ReconcileShootWebhooksForAllNamespaces reconciles the shoot webhooks in all shoot namespaces of the given
// provider type. This is necessary in case the webhook port is changed (otherwise, the network policy would only be
// updated again as part of the ControlPlane reconciliation which might only happen in the next 24h).
func ReconcileShootWebhooksForAllNamespaces(ctx context.Context, c client.Client, providerName, providerType string, port int, shootWebhooks []admissionregistrationv1beta1.MutatingWebhook) error {
namespaceList := &corev1.NamespaceList{}
if err := c.List(ctx, namespaceList, client.MatchingLabels{
v1beta1constants.GardenRole: v1beta1constants.GardenRoleShoot,
v1beta1constants.LabelShootProvider: providerType,
}); err != nil {
return err
}
fns := make([]flow.TaskFn, 0, len(namespaceList.Items))
for _, namespace := range namespaceList.Items {
var (
networkPolicy = extensionswebhookshoot.GetNetworkPolicyMeta(namespace.Name, providerName)
namespaceName = namespace.Name
networkPolicyName = networkPolicy.Name
)
fns = append(fns, func(ctx context.Context) error {
if err := c.Get(ctx, kutil.Key(namespaceName, networkPolicyName), &networkingv1.NetworkPolicy{}); err != nil {
if !apierrors.IsNotFound(err) {
return err
}
return nil
}
return ReconcileShootWebhooks(ctx, c, namespaceName, providerName, port, shootWebhooks)
})
}
return flow.Parallel(fns...)(ctx)
}