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secrets.go
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secrets.go
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// Copyright 2022 Google LLC
//
// 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 k8s
import (
"context"
"encoding/json"
"fmt"
corekccv1alpha1 "github.com/GoogleCloudPlatform/k8s-config-connector/pkg/apis/core/v1alpha1"
v1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/types"
"sigs.k8s.io/controller-runtime/pkg/client"
)
func GetSecretVal(secretKeyRef *corekccv1alpha1.SecretKeyReference, secretNamespace string, kubeClient client.Client) (secretVal string, secretVersion string, err error) {
nn := types.NamespacedName{
Name: secretKeyRef.Name,
Namespace: secretNamespace,
}
secret := v1.Secret{}
if err := kubeClient.Get(context.TODO(), nn, &secret); err != nil {
if errors.IsNotFound(err) {
return "", "", NewSecretNotFoundError(nn)
}
return "", "", fmt.Errorf("error getting Secret %v: %w", nn, err)
}
secretValBytes, ok := secret.Data[secretKeyRef.Key]
if !ok {
return "", "", NewKeyInSecretNotFoundError(secretKeyRef.Key, nn)
}
return string(secretValBytes), secret.GetResourceVersion(), nil
}
func GetSecretVersionsFromAnnotations(resource *Resource) (map[string]string, error) {
annotationVal, ok := GetAnnotation(ObservedSecretVersionsAnnotation, resource)
if !ok {
return nil, nil
}
secretVersions := make(map[string]string)
if err := json.Unmarshal([]byte(annotationVal), &secretVersions); err != nil {
return nil, fmt.Errorf("error unmarshalling value of %v: %w", ObservedSecretVersionsAnnotation, err)
}
return secretVersions, nil
}
func UpdateOrRemoveObservedSecretVersionsAnnotation(resource *Resource, secretVersions map[string]string, hasSensitiveFields bool) error {
// The annotation should only be set for resources with sensitive fields.
if !hasSensitiveFields {
RemoveAnnotation(ObservedSecretVersionsAnnotation, resource)
return nil
}
b, err := json.Marshal(secretVersions)
if err != nil {
return err
}
SetAnnotation(ObservedSecretVersionsAnnotation, string(b), resource)
return nil
}