/* Copyright 2021 The Dapr Authors 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 kubernetes import ( "context" "errors" "fmt" "os" metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" "k8s.io/client-go/kubernetes" kubeclient "github.com/dapr/components-contrib/common/authentication/kubernetes" "github.com/dapr/components-contrib/metadata" "github.com/dapr/components-contrib/secretstores" "github.com/dapr/kit/logger" ) var _ secretstores.SecretStore = (*kubernetesSecretStore)(nil) type kubernetesSecretStore struct { kubeClient kubernetes.Interface md kubernetesMetadata logger logger.Logger } // NewKubernetesSecretStore returns a new Kubernetes secret store. func NewKubernetesSecretStore(logger logger.Logger) secretstores.SecretStore { return &kubernetesSecretStore{logger: logger} } // Init creates a Kubernetes client. func (k *kubernetesSecretStore) Init(_ context.Context, metadata secretstores.Metadata) error { // Init metadata err := k.md.InitWithMetadata(metadata) if err != nil { return fmt.Errorf("failed to load metadata: %w", err) } // Init Kubernetes client kubeconfigPath := k.md.KubeconfigPath if kubeconfigPath == "" { kubeconfigPath = kubeclient.GetKubeconfigPath(k.logger, os.Args) } k.kubeClient, err = kubeclient.GetKubeClient(kubeconfigPath) if err != nil { return err } return nil } // GetSecret retrieves a secret using a key and returns a map of decrypted string/string values. func (k *kubernetesSecretStore) GetSecret(ctx context.Context, req secretstores.GetSecretRequest) (secretstores.GetSecretResponse, error) { resp := secretstores.GetSecretResponse{ Data: map[string]string{}, } namespace, err := k.getNamespaceFromMetadata(req.Metadata) if err != nil { return resp, err } secret, err := k.kubeClient.CoreV1().Secrets(namespace).Get(ctx, req.Name, metav1.GetOptions{}) if err != nil { return resp, err } for k, v := range secret.Data { resp.Data[k] = string(v) } return resp, nil } // BulkGetSecret retrieves all secrets in the store and returns a map of decrypted string/string values. func (k *kubernetesSecretStore) BulkGetSecret(ctx context.Context, req secretstores.BulkGetSecretRequest) (secretstores.BulkGetSecretResponse, error) { resp := secretstores.BulkGetSecretResponse{ Data: map[string]map[string]string{}, } namespace, err := k.getNamespaceFromMetadata(req.Metadata) if err != nil { return resp, err } secrets, err := k.kubeClient.CoreV1().Secrets(namespace).List(ctx, metav1.ListOptions{}) if err != nil { return resp, err } for _, s := range secrets.Items { resp.Data[s.Name] = map[string]string{} for k, v := range s.Data { resp.Data[s.Name][k] = string(v) } } return resp, nil } func (k *kubernetesSecretStore) getNamespaceFromMetadata(metadata map[string]string) (string, error) { if val, ok := metadata["namespace"]; ok && val != "" { return val, nil } if val := os.Getenv("NAMESPACE"); val != "" { return val, nil } if k.md.DefaultNamespace != "" { return k.md.DefaultNamespace, nil } return "", errors.New("namespace is missing on metadata and NAMESPACE env variable, and no default namespace is set") } // Features returns the features available in this secret store. func (k *kubernetesSecretStore) Features() []secretstores.Feature { return []secretstores.Feature{} } func (k *kubernetesSecretStore) GetComponentMetadata() (metadataInfo metadata.MetadataMap) { // No component metadata return } func (k *kubernetesSecretStore) Close() error { return nil }