From e9ebe24f2e0f8b30284ea9334d5924f54e970c95 Mon Sep 17 00:00:00 2001 From: Chris Lu Date: Tue, 24 Aug 2021 01:18:30 -0700 Subject: [PATCH] cloud drive: add support for Azure --- other/java/client/src/main/proto/filer.proto | 2 + weed/command/imports.go | 1 + weed/pb/filer.proto | 2 + weed/pb/filer_pb/filer.pb.go | 302 ++++++++++-------- weed/remote_storage/azure/azure_highlevel.go | 120 +++++++ .../azure/azure_storage_client.go | 207 ++++++++++++ weed/shell/command_remote_configure.go | 8 +- 7 files changed, 500 insertions(+), 142 deletions(-) create mode 100644 weed/remote_storage/azure/azure_highlevel.go create mode 100644 weed/remote_storage/azure/azure_storage_client.go diff --git a/other/java/client/src/main/proto/filer.proto b/other/java/client/src/main/proto/filer.proto index cef7e764c..9d68182ef 100644 --- a/other/java/client/src/main/proto/filer.proto +++ b/other/java/client/src/main/proto/filer.proto @@ -396,6 +396,8 @@ message RemoteConf { string s3_storage_class = 8; bool s3_force_path_style = 9; string gcs_google_application_credentials = 10; + string azure_account_name = 15; + string azure_account_key = 16; } message RemoteStorageMapping { diff --git a/weed/command/imports.go b/weed/command/imports.go index 0bf8244e7..ee35ed56f 100644 --- a/weed/command/imports.go +++ b/weed/command/imports.go @@ -5,6 +5,7 @@ import ( _ "github.com/chrislusf/seaweedfs/weed/remote_storage/s3" _ "github.com/chrislusf/seaweedfs/weed/remote_storage/gcs" + _ "github.com/chrislusf/seaweedfs/weed/remote_storage/azure" _ "github.com/chrislusf/seaweedfs/weed/replication/sink/azuresink" _ "github.com/chrislusf/seaweedfs/weed/replication/sink/b2sink" diff --git a/weed/pb/filer.proto b/weed/pb/filer.proto index cef7e764c..9d68182ef 100644 --- a/weed/pb/filer.proto +++ b/weed/pb/filer.proto @@ -396,6 +396,8 @@ message RemoteConf { string s3_storage_class = 8; bool s3_force_path_style = 9; string gcs_google_application_credentials = 10; + string azure_account_name = 15; + string azure_account_key = 16; } message RemoteStorageMapping { diff --git a/weed/pb/filer_pb/filer.pb.go b/weed/pb/filer_pb/filer.pb.go index 202faba2d..56c900dfa 100644 --- a/weed/pb/filer_pb/filer.pb.go +++ b/weed/pb/filer_pb/filer.pb.go @@ -3190,6 +3190,8 @@ type RemoteConf struct { S3StorageClass string `protobuf:"bytes,8,opt,name=s3_storage_class,json=s3StorageClass,proto3" json:"s3_storage_class,omitempty"` S3ForcePathStyle bool `protobuf:"varint,9,opt,name=s3_force_path_style,json=s3ForcePathStyle,proto3" json:"s3_force_path_style,omitempty"` GcsGoogleApplicationCredentials string `protobuf:"bytes,10,opt,name=gcs_google_application_credentials,json=gcsGoogleApplicationCredentials,proto3" json:"gcs_google_application_credentials,omitempty"` + AzureAccountName string `protobuf:"bytes,15,opt,name=azure_account_name,json=azureAccountName,proto3" json:"azure_account_name,omitempty"` + AzureAccountKey string `protobuf:"bytes,16,opt,name=azure_account_key,json=azureAccountKey,proto3" json:"azure_account_key,omitempty"` } func (x *RemoteConf) Reset() { @@ -3287,6 +3289,20 @@ func (x *RemoteConf) GetGcsGoogleApplicationCredentials() string { return "" } +func (x *RemoteConf) GetAzureAccountName() string { + if x != nil { + return x.AzureAccountName + } + return "" +} + +func (x *RemoteConf) GetAzureAccountKey() string { + if x != nil { + return x.AzureAccountKey + } + return "" +} + type RemoteStorageMapping struct { state protoimpl.MessageState sizeCache protoimpl.SizeCache @@ -4078,7 +4094,7 @@ var file_filer_proto_rawDesc = []byte{ 0x01, 0x28, 0x0d, 0x52, 0x11, 0x76, 0x6f, 0x6c, 0x75, 0x6d, 0x65, 0x47, 0x72, 0x6f, 0x77, 0x74, 0x68, 0x43, 0x6f, 0x75, 0x6e, 0x74, 0x12, 0x1b, 0x0a, 0x09, 0x72, 0x65, 0x61, 0x64, 0x5f, 0x6f, 0x6e, 0x6c, 0x79, 0x18, 0x08, 0x20, 0x01, 0x28, 0x08, 0x52, 0x08, 0x72, 0x65, 0x61, 0x64, 0x4f, - 0x6e, 0x6c, 0x79, 0x22, 0xe0, 0x02, 0x0a, 0x0a, 0x52, 0x65, 0x6d, 0x6f, 0x74, 0x65, 0x43, 0x6f, + 0x6e, 0x6c, 0x79, 0x22, 0xba, 0x03, 0x0a, 0x0a, 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"github.com/Azure/azure-pipeline-go/pipeline" + . "github.com/Azure/azure-storage-blob-go/azblob" + "io" + "sync" +) + +// copied from https://github.com/Azure/azure-storage-blob-go/blob/master/azblob/highlevel.go#L73:6 +// uploadReaderAtToBlockBlob was not public + +// uploadReaderAtToBlockBlob uploads a buffer in blocks to a block blob. +func uploadReaderAtToBlockBlob(ctx context.Context, reader io.ReaderAt, readerSize int64, + blockBlobURL BlockBlobURL, o UploadToBlockBlobOptions) (CommonResponse, error) { + if o.BlockSize == 0 { + // If bufferSize > (BlockBlobMaxStageBlockBytes * BlockBlobMaxBlocks), then error + if readerSize > BlockBlobMaxStageBlockBytes*BlockBlobMaxBlocks { + return nil, errors.New("buffer is too large to upload to a block blob") + } + // If bufferSize <= BlockBlobMaxUploadBlobBytes, then Upload should be used with just 1 I/O request + if readerSize <= BlockBlobMaxUploadBlobBytes { + o.BlockSize = BlockBlobMaxUploadBlobBytes // Default if unspecified + } else { + o.BlockSize = readerSize / BlockBlobMaxBlocks // buffer / max blocks = block size to use all 50,000 blocks + if o.BlockSize < BlobDefaultDownloadBlockSize { // If the block size is smaller than 4MB, round up to 4MB + o.BlockSize = BlobDefaultDownloadBlockSize + } + // StageBlock will be called with blockSize blocks and a Parallelism of (BufferSize / BlockSize). + } + } + + if readerSize <= BlockBlobMaxUploadBlobBytes { + // If the size can fit in 1 Upload call, do it this way + var body io.ReadSeeker = io.NewSectionReader(reader, 0, readerSize) + if o.Progress != nil { + body = pipeline.NewRequestBodyProgress(body, o.Progress) + } + return blockBlobURL.Upload(ctx, body, o.BlobHTTPHeaders, o.Metadata, o.AccessConditions, o.BlobAccessTier, o.BlobTagsMap, o.ClientProvidedKeyOptions) + } + + var numBlocks = uint16(((readerSize - 1) / o.BlockSize) + 1) + + blockIDList := make([]string, numBlocks) // Base-64 encoded block IDs + progress := int64(0) + progressLock := &sync.Mutex{} + + err := DoBatchTransfer(ctx, BatchTransferOptions{ + OperationName: "uploadReaderAtToBlockBlob", + TransferSize: readerSize, + ChunkSize: o.BlockSize, + Parallelism: o.Parallelism, + Operation: func(offset int64, count int64, ctx context.Context) error { + // This function is called once per block. + // It is passed this block's offset within the buffer and its count of bytes + // Prepare to read the proper block/section of the buffer + var body io.ReadSeeker = io.NewSectionReader(reader, offset, count) + blockNum := offset / o.BlockSize + if o.Progress != nil { + blockProgress := int64(0) + body = pipeline.NewRequestBodyProgress(body, + func(bytesTransferred int64) { + diff := bytesTransferred - blockProgress + blockProgress = bytesTransferred + progressLock.Lock() // 1 goroutine at a time gets a progress report + progress += diff + o.Progress(progress) + progressLock.Unlock() + }) + } + + // Block IDs are unique values to avoid issue if 2+ clients are uploading blocks + // at the same time causing PutBlockList to get a mix of blocks from all the clients. + blockIDList[blockNum] = base64.StdEncoding.EncodeToString(newUUID().bytes()) + _, err := blockBlobURL.StageBlock(ctx, blockIDList[blockNum], body, o.AccessConditions.LeaseAccessConditions, nil, o.ClientProvidedKeyOptions) + return err + }, + }) + if err != nil { + return nil, err + } + // All put blocks were successful, call Put Block List to finalize the blob + return blockBlobURL.CommitBlockList(ctx, blockIDList, o.BlobHTTPHeaders, o.Metadata, o.AccessConditions, o.BlobAccessTier, o.BlobTagsMap, o.ClientProvidedKeyOptions) +} + +// The UUID reserved variants. +const ( + reservedNCS byte = 0x80 + reservedRFC4122 byte = 0x40 + reservedMicrosoft byte = 0x20 + reservedFuture byte = 0x00 +) + +type uuid [16]byte + +// NewUUID returns a new uuid using RFC 4122 algorithm. +func newUUID() (u uuid) { + u = uuid{} + // Set all bits to randomly (or pseudo-randomly) chosen values. + rand.Read(u[:]) + u[8] = (u[8] | reservedRFC4122) & 0x7F // u.setVariant(ReservedRFC4122) + + var version byte = 4 + u[6] = (u[6] & 0xF) | (version << 4) // u.setVersion(4) + return +} + +// String returns an unparsed version of the generated UUID sequence. +func (u uuid) String() string { + return fmt.Sprintf("%x-%x-%x-%x-%x", u[0:4], u[4:6], u[6:8], u[8:10], u[10:]) +} + +func (u uuid) bytes() []byte { + return u[:] +} diff --git a/weed/remote_storage/azure/azure_storage_client.go b/weed/remote_storage/azure/azure_storage_client.go new file mode 100644 index 000000000..364eb07ab --- /dev/null +++ b/weed/remote_storage/azure/azure_storage_client.go @@ -0,0 +1,207 @@ +package azure + +import ( + "context" + "fmt" + "github.com/Azure/azure-storage-blob-go/azblob" + "github.com/chrislusf/seaweedfs/weed/filer" + "github.com/chrislusf/seaweedfs/weed/pb/filer_pb" + "github.com/chrislusf/seaweedfs/weed/remote_storage" + "github.com/chrislusf/seaweedfs/weed/util" + "io" + "io/ioutil" + "net/url" + "os" + "reflect" +) + +func init() { + remote_storage.RemoteStorageClientMakers["azure"] = new(azureRemoteStorageMaker) +} + +type azureRemoteStorageMaker struct{} + +func (s azureRemoteStorageMaker) Make(conf *filer_pb.RemoteConf) (remote_storage.RemoteStorageClient, error) { + + client := &azureRemoteStorageClient{ + conf: conf, + } + + accountName, accountKey := conf.AzureAccountName, conf.AzureAccountKey + if len(accountName) == 0 || len(accountKey) == 0 { + accountName, accountKey = os.Getenv("AZURE_STORAGE_ACCOUNT"), os.Getenv("AZURE_STORAGE_ACCESS_KEY") + if len(accountName) == 0 || len(accountKey) == 0 { + return nil, fmt.Errorf("either AZURE_STORAGE_ACCOUNT or AZURE_STORAGE_ACCESS_KEY environment variable is not set") + } + } + + // Use your Storage account's name and key to create a credential object. + credential, err := azblob.NewSharedKeyCredential(accountName, accountKey) + if err != nil { + return nil, fmt.Errorf("invalid Azure credential with account name:%s: %v", accountName, err) + } + + // Create a request pipeline that is used to process HTTP(S) requests and responses. + p := azblob.NewPipeline(credential, azblob.PipelineOptions{}) + + // Create an ServiceURL object that wraps the service URL and a request pipeline. + u, _ := url.Parse(fmt.Sprintf("https://%s.blob.core.windows.net", accountName)) + client.serviceURL = azblob.NewServiceURL(*u, p) + + return client, nil +} + +type azureRemoteStorageClient struct { + conf *filer_pb.RemoteConf + serviceURL azblob.ServiceURL +} + +var _ = remote_storage.RemoteStorageClient(&azureRemoteStorageClient{}) + +func (az *azureRemoteStorageClient) Traverse(loc *filer_pb.RemoteStorageLocation, visitFn remote_storage.VisitFunc) (err error) { + + pathKey := loc.Path[1:] + containerURL := az.serviceURL.NewContainerURL(loc.Bucket) + + // List the container that we have created above + for marker := (azblob.Marker{}); marker.NotDone(); { + // Get a result segment starting with the blob indicated by the current Marker. + listBlob, err := containerURL.ListBlobsFlatSegment(context.Background(), marker, azblob.ListBlobsSegmentOptions{ + Prefix: pathKey, + }) + if err != nil { + return fmt.Errorf("azure traverse %s%s: %v", loc.Bucket, loc.Path, err) + } + + // ListBlobs returns the start of the next segment; you MUST use this to get + // the next segment (after processing the current result segment). + marker = listBlob.NextMarker + + // Process the blobs returned in this result segment (if the segment is empty, the loop body won't execute) + for _, blobInfo := range listBlob.Segment.BlobItems { + key := blobInfo.Name + key = "/" + key + dir, name := util.FullPath(key).DirAndName() + err = visitFn(dir, name, false, &filer_pb.RemoteEntry{ + RemoteMtime: blobInfo.Properties.LastModified.Unix(), + RemoteSize: *blobInfo.Properties.ContentLength, + RemoteETag: string(blobInfo.Properties.Etag), + StorageName: az.conf.Name, + }) + if err != nil { + return fmt.Errorf("azure processing %s%s: %v", loc.Bucket, loc.Path, err) + } + } + } + + return +} +func (az *azureRemoteStorageClient) ReadFile(loc *filer_pb.RemoteStorageLocation, offset int64, size int64) (data []byte, err error) { + + key := loc.Path[1:] + containerURL := az.serviceURL.NewContainerURL(loc.Bucket) + blobURL := containerURL.NewBlockBlobURL(key) + + downloadResponse, readErr := blobURL.Download(context.Background(), offset, size, azblob.BlobAccessConditions{}, false, azblob.ClientProvidedKeyOptions{}) + if readErr != nil { + return nil, readErr + } + // NOTE: automatically retries are performed if the connection fails + bodyStream := downloadResponse.Body(azblob.RetryReaderOptions{MaxRetryRequests: 20}) + defer bodyStream.Close() + + data, err = ioutil.ReadAll(bodyStream) + + if err != nil { + return nil, fmt.Errorf("failed to download file %s%s: %v", loc.Bucket, loc.Path, err) + } + + return +} + +func (az *azureRemoteStorageClient) WriteDirectory(loc *filer_pb.RemoteStorageLocation, entry *filer_pb.Entry) (err error) { + return nil +} + +func (az *azureRemoteStorageClient) WriteFile(loc *filer_pb.RemoteStorageLocation, entry *filer_pb.Entry, reader io.Reader) (remoteEntry *filer_pb.RemoteEntry, err error) { + + key := loc.Path[1:] + containerURL := az.serviceURL.NewContainerURL(loc.Bucket) + blobURL := containerURL.NewBlockBlobURL(key) + + readerAt, ok := reader.(io.ReaderAt) + if !ok { + return nil, fmt.Errorf("unexpected reader: readerAt expected") + } + fileSize := int64(filer.FileSize(entry)) + + _, err = uploadReaderAtToBlockBlob(context.Background(), readerAt, fileSize, blobURL, azblob.UploadToBlockBlobOptions{ + BlockSize: 4 * 1024 * 1024, + Parallelism: 16}) + if err != nil { + return nil, fmt.Errorf("azure upload to %s%s: %v", loc.Bucket, loc.Path, err) + } + + metadata := toMetadata(entry.Extended) + if len(metadata) > 0 { + _, err = blobURL.SetMetadata(context.Background(), metadata, azblob.BlobAccessConditions{}, azblob.ClientProvidedKeyOptions{}) + if err != nil { + return nil, fmt.Errorf("azure set metadata on %s%s: %v", loc.Bucket, loc.Path, err) + } + } + + // read back the remote entry + return az.readFileRemoteEntry(loc) + +} + +func (az *azureRemoteStorageClient) readFileRemoteEntry(loc *filer_pb.RemoteStorageLocation) (*filer_pb.RemoteEntry, error) { + key := loc.Path[1:] + containerURL := az.serviceURL.NewContainerURL(loc.Bucket) + blobURL := containerURL.NewBlockBlobURL(key) + + attr, err := blobURL.GetProperties(context.Background(), azblob.BlobAccessConditions{}, azblob.ClientProvidedKeyOptions{}) + + if err != nil { + return nil, err + } + + return &filer_pb.RemoteEntry{ + RemoteMtime: attr.LastModified().Unix(), + RemoteSize: attr.ContentLength(), + RemoteETag: string(attr.ETag()), + StorageName: az.conf.Name, + }, nil + +} + +func toMetadata(attributes map[string][]byte) map[string]string { + metadata := make(map[string]string) + for k, v := range attributes { + metadata[k] = string(v) + } + return metadata +} + +func (az *azureRemoteStorageClient) UpdateFileMetadata(loc *filer_pb.RemoteStorageLocation, oldEntry *filer_pb.Entry, newEntry *filer_pb.Entry) (err error) { + if reflect.DeepEqual(oldEntry.Extended, newEntry.Extended) { + return nil + } + metadata := toMetadata(newEntry.Extended) + + key := loc.Path[1:] + containerURL := az.serviceURL.NewContainerURL(loc.Bucket) + + _, err = containerURL.NewBlobURL(key).SetMetadata(context.Background(), metadata, azblob.BlobAccessConditions{}, azblob.ClientProvidedKeyOptions{}) + + return +} +func (az *azureRemoteStorageClient) DeleteFile(loc *filer_pb.RemoteStorageLocation) (err error) { + key := loc.Path[1:] + containerURL := az.serviceURL.NewContainerURL(loc.Bucket) + if _, err = containerURL.NewBlobURL(key).Delete(context.Background(), + azblob.DeleteSnapshotsOptionInclude, azblob.BlobAccessConditions{}); err != nil { + return fmt.Errorf("azure delete %s%s: %v", loc.Bucket, loc.Path, err) + } + return +} diff --git a/weed/shell/command_remote_configure.go b/weed/shell/command_remote_configure.go index ed8b2395d..33148d5b6 100644 --- a/weed/shell/command_remote_configure.go +++ b/weed/shell/command_remote_configure.go @@ -34,6 +34,7 @@ func (c *commandRemoteConfigure) Help() string { # set or update a configuration remote.configure -name=cloud1 -type=s3 -s3.access_key=xxx -s3.secret_key=yyy remote.configure -name=cloud2 -type=gcs -gcs.appCredentialsFile=~/service-account-file.json + remote.configure -name=cloud3 -type=azure -azure.account_name=xxx -azure.account_key=yyy # delete one configuration remote.configure -delete -name=cloud1 @@ -53,7 +54,7 @@ func (c *commandRemoteConfigure) Do(args []string, commandEnv *CommandEnv, write isDelete := remoteConfigureCommand.Bool("delete", false, "delete one remote storage by its name") remoteConfigureCommand.StringVar(&conf.Name, "name", "", "a short name to identify the remote storage") - remoteConfigureCommand.StringVar(&conf.Type, "type", "s3", "[s3|gcs] storage type") + remoteConfigureCommand.StringVar(&conf.Type, "type", "s3", "[s3|gcs|azure] storage type") remoteConfigureCommand.StringVar(&conf.S3AccessKey, "s3.access_key", "", "s3 access key") remoteConfigureCommand.StringVar(&conf.S3SecretKey, "s3.secret_key", "", "s3 secret key") @@ -62,7 +63,10 @@ func (c *commandRemoteConfigure) Do(args []string, commandEnv *CommandEnv, write remoteConfigureCommand.StringVar(&conf.S3StorageClass, "s3.storage_class", "", "s3 storage class") remoteConfigureCommand.BoolVar(&conf.S3ForcePathStyle, "s3.force_path_style", true, "s3 force path style") - remoteConfigureCommand.StringVar(&conf.GcsGoogleApplicationCredentials, "gcs.appCredentialsFile", "", "google cloud storage credentials file, or leave it empty to use env GOOGLE_APPLICATION_CREDENTIALS") + remoteConfigureCommand.StringVar(&conf.GcsGoogleApplicationCredentials, "gcs.appCredentialsFile", "", "google cloud storage credentials file, default to use env GOOGLE_APPLICATION_CREDENTIALS") + + remoteConfigureCommand.StringVar(&conf.AzureAccountName, "azure.account_name", "", "azure account name, default to use env AZURE_STORAGE_ACCOUNT") + remoteConfigureCommand.StringVar(&conf.AzureAccountKey, "azure.account_key", "", "azure account name, default to use env AZURE_STORAGE_ACCESS_KEY") if err = remoteConfigureCommand.Parse(args); err != nil { return nil