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secrets.go
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secrets.go
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package storage
import (
"crypto/sha1"
"fmt"
"sort"
"github.com/ViaQ/logerr/v2/kverrors"
corev1 "k8s.io/api/core/v1"
lokiv1 "github.com/grafana/loki/operator/apis/loki/v1"
"github.com/grafana/loki/operator/internal/manifests/storage"
)
var hashSeparator = []byte(",")
// ExtractSecret reads a k8s secret into a manifest object storage struct if valid.
func ExtractSecret(s *corev1.Secret, secretType lokiv1.ObjectStorageSecretType) (*storage.Options, error) {
hash, err := hashSecretData(s)
if err != nil {
return nil, kverrors.Wrap(err, "error calculating hash for secret", "type", secretType)
}
storageOpts := storage.Options{
SecretName: s.Name,
SecretSHA1: hash,
SharedStore: secretType,
}
switch secretType {
case lokiv1.ObjectStorageSecretAzure:
storageOpts.Azure, err = extractAzureConfigSecret(s)
case lokiv1.ObjectStorageSecretGCS:
storageOpts.GCS, err = extractGCSConfigSecret(s)
case lokiv1.ObjectStorageSecretS3:
storageOpts.S3, err = extractS3ConfigSecret(s)
case lokiv1.ObjectStorageSecretSwift:
storageOpts.Swift, err = extractSwiftConfigSecret(s)
case lokiv1.ObjectStorageSecretAlibabaCloud:
storageOpts.AlibabaCloud, err = extractAlibabaCloudConfigSecret(s)
default:
return nil, kverrors.New("unknown secret type", "type", secretType)
}
if err != nil {
return nil, err
}
return &storageOpts, nil
}
func hashSecretData(s *corev1.Secret) (string, error) {
keys := make([]string, 0, len(s.Data))
for k := range s.Data {
keys = append(keys, k)
}
sort.Strings(keys)
h := sha1.New()
for _, k := range keys {
if _, err := h.Write([]byte(k)); err != nil {
return "", err
}
if _, err := h.Write(hashSeparator); err != nil {
return "", err
}
if _, err := h.Write(s.Data[k]); err != nil {
return "", err
}
if _, err := h.Write(hashSeparator); err != nil {
return "", err
}
}
return fmt.Sprintf("%x", h.Sum(nil)), nil
}
func extractAzureConfigSecret(s *corev1.Secret) (*storage.AzureStorageConfig, error) {
// Extract and validate mandatory fields
env := s.Data[storage.KeyAzureEnvironmentName]
if len(env) == 0 {
return nil, kverrors.New("missing secret field", "field", storage.KeyAzureEnvironmentName)
}
container := s.Data[storage.KeyAzureStorageContainerName]
if len(container) == 0 {
return nil, kverrors.New("missing secret field", "field", storage.KeyAzureStorageContainerName)
}
name := s.Data[storage.KeyAzureStorageAccountName]
if len(name) == 0 {
return nil, kverrors.New("missing secret field", "field", storage.KeyAzureStorageAccountName)
}
key := s.Data[storage.KeyAzureStorageAccountKey]
if len(key) == 0 {
return nil, kverrors.New("missing secret field", "field", storage.KeyAzureStorageAccountKey)
}
// Extract and validate optional fields
endpointSuffix := s.Data[storage.KeyAzureStorageEndpointSuffix]
return &storage.AzureStorageConfig{
Env: string(env),
Container: string(container),
EndpointSuffix: string(endpointSuffix),
}, nil
}
func extractGCSConfigSecret(s *corev1.Secret) (*storage.GCSStorageConfig, error) {
// Extract and validate mandatory fields
bucket := s.Data[storage.KeyGCPStorageBucketName]
if len(bucket) == 0 {
return nil, kverrors.New("missing secret field", "field", storage.KeyGCPStorageBucketName)
}
// Check if google authentication credentials is provided
keyJSON := s.Data[storage.KeyGCPServiceAccountKeyFilename]
if len(keyJSON) == 0 {
return nil, kverrors.New("missing google authentication credentials", "field", storage.KeyGCPServiceAccountKeyFilename)
}
return &storage.GCSStorageConfig{
Bucket: string(bucket),
}, nil
}
func extractS3ConfigSecret(s *corev1.Secret) (*storage.S3StorageConfig, error) {
// Extract and validate mandatory fields
buckets := s.Data[storage.KeyAWSBucketNames]
if len(buckets) == 0 {
return nil, kverrors.New("missing secret field", "field", storage.KeyAWSBucketNames)
}
// Fields related with static authentication
endpoint := s.Data[storage.KeyAWSEndpoint]
id := s.Data[storage.KeyAWSAccessKeyID]
secret := s.Data[storage.KeyAWSAccessKeySecret]
// Fields related with STS authentication
roleArn := s.Data[storage.KeyAWSRoleArn]
audience := s.Data[storage.KeyAWSAudience]
// Optional fields
region := s.Data[storage.KeyAWSRegion]
if len(roleArn) == 0 {
if len(endpoint) == 0 {
return nil, kverrors.New("missing secret field", "field", storage.KeyAWSEndpoint)
}
if len(id) == 0 {
return nil, kverrors.New("missing secret field", "field", storage.KeyAWSAccessKeyID)
}
if len(secret) == 0 {
return nil, kverrors.New("missing secret field", "field", storage.KeyAWSAccessKeySecret)
}
} else {
// In the STS case region is not an optional field
if len(region) == 0 {
return nil, kverrors.New("missing secret field", "field", storage.KeyAWSRegion)
}
}
sseCfg, err := extractS3SSEConfig(s.Data)
if err != nil {
return nil, err
}
return &storage.S3StorageConfig{
Endpoint: string(endpoint),
Buckets: string(buckets),
Region: string(region),
RoleArn: string(roleArn),
Audience: string(audience),
SSE: sseCfg,
}, nil
}
func extractS3SSEConfig(d map[string][]byte) (storage.S3SSEConfig, error) {
var (
sseType storage.S3SSEType
kmsKeyId, kmsEncryptionCtx string
)
switch sseType = storage.S3SSEType(d[storage.KeyAWSSSEType]); sseType {
case storage.SSEKMSType:
kmsEncryptionCtx = string(d[storage.KeyAWSSseKmsEncryptionContext])
kmsKeyId = string(d[storage.KeyAWSSseKmsKeyID])
if kmsKeyId == "" {
return storage.S3SSEConfig{}, kverrors.New("missing secret field", "field", storage.KeyAWSSseKmsKeyID)
}
case storage.SSES3Type:
case "":
return storage.S3SSEConfig{}, nil
default:
return storage.S3SSEConfig{}, kverrors.New("unsupported secret field value (Supported: SSE-KMS, SSE-S3)", "field", storage.KeyAWSSSEType, "value", sseType)
}
return storage.S3SSEConfig{
Type: sseType,
KMSKeyID: string(kmsKeyId),
KMSEncryptionContext: string(kmsEncryptionCtx),
}, nil
}
func extractSwiftConfigSecret(s *corev1.Secret) (*storage.SwiftStorageConfig, error) {
// Extract and validate mandatory fields
url := s.Data[storage.KeySwiftAuthURL]
if len(url) == 0 {
return nil, kverrors.New("missing secret field", "field", storage.KeySwiftAuthURL)
}
username := s.Data[storage.KeySwiftUsername]
if len(username) == 0 {
return nil, kverrors.New("missing secret field", "field", storage.KeySwiftUsername)
}
userDomainName := s.Data[storage.KeySwiftUserDomainName]
if len(userDomainName) == 0 {
return nil, kverrors.New("missing secret field", "field", storage.KeySwiftUserDomainName)
}
userDomainID := s.Data[storage.KeySwiftUserDomainID]
if len(userDomainID) == 0 {
return nil, kverrors.New("missing secret field", "field", storage.KeySwiftUserDomainID)
}
userID := s.Data[storage.KeySwiftUserID]
if len(userID) == 0 {
return nil, kverrors.New("missing secret field", "field", storage.KeySwiftUserID)
}
password := s.Data[storage.KeySwiftPassword]
if len(password) == 0 {
return nil, kverrors.New("missing secret field", "field", storage.KeySwiftPassword)
}
domainID := s.Data[storage.KeySwiftDomainID]
if len(domainID) == 0 {
return nil, kverrors.New("missing secret field", "field", storage.KeySwiftDomainID)
}
domainName := s.Data[storage.KeySwiftDomainName]
if len(domainName) == 0 {
return nil, kverrors.New("missing secret field", "field", storage.KeySwiftDomainName)
}
containerName := s.Data[storage.KeySwiftContainerName]
if len(containerName) == 0 {
return nil, kverrors.New("missing secret field", "field", storage.KeySwiftContainerName)
}
// Extract and validate optional fields
projectID := s.Data[storage.KeySwiftProjectID]
projectName := s.Data[storage.KeySwiftProjectName]
projectDomainID := s.Data[storage.KeySwiftProjectDomainId]
projectDomainName := s.Data[storage.KeySwiftProjectDomainName]
region := s.Data[storage.KeySwiftRegion]
return &storage.SwiftStorageConfig{
AuthURL: string(url),
UserDomainName: string(userDomainName),
UserDomainID: string(userDomainID),
UserID: string(userID),
DomainID: string(domainID),
DomainName: string(domainName),
ProjectID: string(projectID),
ProjectName: string(projectName),
ProjectDomainID: string(projectDomainID),
ProjectDomainName: string(projectDomainName),
Region: string(region),
Container: string(containerName),
}, nil
}
func extractAlibabaCloudConfigSecret(s *corev1.Secret) (*storage.AlibabaCloudStorageConfig, error) {
// Extract and validate mandatory fields
endpoint := s.Data[storage.KeyAlibabaCloudEndpoint]
if len(endpoint) == 0 {
return nil, kverrors.New("missing secret field", "field", storage.KeyAlibabaCloudEndpoint)
}
bucket := s.Data[storage.KeyAlibabaCloudBucket]
if len(bucket) == 0 {
return nil, kverrors.New("missing secret field", "field", storage.KeyAlibabaCloudBucket)
}
id := s.Data[storage.KeyAlibabaCloudAccessKeyID]
if len(id) == 0 {
return nil, kverrors.New("missing secret field", "field", storage.KeyAlibabaCloudAccessKeyID)
}
secret := s.Data[storage.KeyAlibabaCloudSecretAccessKey]
if len(secret) == 0 {
return nil, kverrors.New("missing secret field", "field", storage.KeyAlibabaCloudSecretAccessKey)
}
return &storage.AlibabaCloudStorageConfig{
Endpoint: string(endpoint),
Bucket: string(bucket),
}, nil
}