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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,139 @@ | ||
| package extension | ||
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||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "maps" | ||
|
|
||
| gardencorev1beta1 "github.com/gardener/gardener/pkg/apis/core/v1beta1" | ||
| v1beta1constants "github.com/gardener/gardener/pkg/apis/core/v1beta1/constants" | ||
| v1beta1helper "github.com/gardener/gardener/pkg/apis/core/v1beta1/helper" | ||
| resourcesv1alpha1 "github.com/gardener/gardener/pkg/apis/resources/v1alpha1" | ||
| "github.com/gardener/gardener/pkg/utils" | ||
| "github.com/go-logr/logr" | ||
| corev1 "k8s.io/api/core/v1" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/apimachinery/pkg/util/sets" | ||
| "k8s.io/utils/ptr" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
| "sigs.k8s.io/controller-runtime/pkg/controller/controllerutil" | ||
|
|
||
| fluxv1alpha1 "github.com/stackitcloud/gardener-extension-shoot-flux/pkg/apis/flux/v1alpha1" | ||
| ) | ||
|
|
||
| const ( | ||
| managedByLabelKey = "app.kubernetes.io/managed-by" | ||
| managedByLabelValue = "gardener-extension-" + fluxv1alpha1.ExtensionType | ||
| ) | ||
|
|
||
| // ReconcileSecrets copies all secrets referenced in the extension (additionalSecretResources or | ||
| // source.SecretResourceName), and deletes all secrets that are no longer referenced. | ||
| func ReconcileSecrets( | ||
| ctx context.Context, | ||
| log logr.Logger, | ||
| shootClient client.Client, | ||
| seedClient client.Client, | ||
| seedNamespace string, | ||
| config *fluxv1alpha1.FluxConfig, | ||
| resources []gardencorev1beta1.NamedResourceReference, | ||
| ) error { | ||
| shootNamespace := *config.Flux.Namespace | ||
| secretsToKeep := sets.Set[string]{} | ||
|
|
||
| secretResources := config.AdditionalSecretResources | ||
| if config.Source.SecretResourceName != nil { | ||
| secretResources = append(secretResources, fluxv1alpha1.AdditionalResource{ | ||
| Name: *config.Source.SecretResourceName, | ||
| TargetName: ptr.To(config.Source.Template.Spec.SecretRef.Name), | ||
| }) | ||
| } | ||
| for _, resource := range secretResources { | ||
| name, err := copySecretToShoot(ctx, log, seedClient, shootClient, seedNamespace, shootNamespace, resources, resource) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to copy secret: %w", err) | ||
| } | ||
| secretsToKeep.Insert(name) | ||
| } | ||
|
|
||
| // cleanup unreferenced secrets | ||
| secretList := &corev1.SecretList{} | ||
| if err := shootClient.List(ctx, secretList, | ||
| client.InNamespace(shootNamespace), | ||
| client.MatchingLabels{managedByLabelKey: managedByLabelValue}, | ||
| ); err != nil { | ||
| return fmt.Errorf("failed to list managed secrets in shoot: %w", err) | ||
| } | ||
| for _, secret := range secretList.Items { | ||
| if secretsToKeep.Has(secret.Name) { | ||
| continue | ||
| } | ||
| if err := shootClient.Delete(ctx, &secret); client.IgnoreNotFound(err) != nil { | ||
| return fmt.Errorf("failed to delete secret that is no longer referenced: %w", err) | ||
| } | ||
| log.Info("deleted secret that is no longer referenced by the extension", "secretName", secret.Name) | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func copySecretToShoot( | ||
| ctx context.Context, | ||
| log logr.Logger, | ||
| seedClient client.Client, | ||
| shootClient client.Client, | ||
| seedNamespace string, | ||
| targetNamespace string, | ||
| resources []gardencorev1beta1.NamedResourceReference, | ||
| additionalResource fluxv1alpha1.AdditionalResource, | ||
| ) (string, error) { | ||
| resource := v1beta1helper.GetResourceByName(resources, additionalResource.Name) | ||
| if resource == nil { | ||
| return "", fmt.Errorf("secret resource name does not match any of the resource names in Shoot.spec.resources[].name") | ||
| } | ||
|
|
||
| seedSecret := &corev1.Secret{ | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: v1beta1constants.ReferencedResourcesPrefix + resource.ResourceRef.Name, | ||
| Namespace: seedNamespace, | ||
| }, | ||
| } | ||
| if err := seedClient.Get(ctx, client.ObjectKeyFromObject(seedSecret), seedSecret); err != nil { | ||
| return "", fmt.Errorf("error reading referenced secret: %w", err) | ||
| } | ||
|
|
||
| name := resource.ResourceRef.Name | ||
| if additionalResource.TargetName != nil { | ||
| name = *additionalResource.TargetName | ||
| } | ||
| shootSecret := &corev1.Secret{ | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: name, | ||
| Namespace: targetNamespace, | ||
| }, | ||
| } | ||
| // TODO: this should only create | ||
| res, err := controllerutil.CreateOrUpdate(ctx, shootClient, shootSecret, func() error { | ||
| shootSecret.Data = maps.Clone(seedSecret.Data) | ||
| setSecretMeta(seedSecret, shootSecret) | ||
| return nil | ||
| }) | ||
| if err != nil { | ||
| return "", fmt.Errorf("failed to ensure secret resource") | ||
| } | ||
| if res != controllerutil.OperationResultNone { | ||
| log.Info("Ensured secret", "secretName", shootSecret.Name, "result", res) | ||
| } | ||
|
|
||
| return shootSecret.Name, nil | ||
| } | ||
|
|
||
| func setSecretMeta(from, into client.Object) { | ||
| labels := from.GetLabels() | ||
| labels[managedByLabelKey] = managedByLabelValue | ||
| delete(labels, resourcesv1alpha1.ManagedBy) | ||
| into.SetLabels(utils.MergeStringMaps(into.GetLabels(), labels)) | ||
|
|
||
| annotations := from.GetAnnotations() | ||
| delete(annotations, resourcesv1alpha1.OriginAnnotation) | ||
| delete(annotations, "resources.gardener.cloud/description") | ||
| into.SetAnnotations(utils.MergeStringMaps(into.GetAnnotations(), annotations)) | ||
| } |