package S3Sink import ( "context" "fmt" "strings" "sync" "github.com/aws/aws-sdk-go/aws" "github.com/aws/aws-sdk-go/aws/credentials" "github.com/aws/aws-sdk-go/aws/session" "github.com/aws/aws-sdk-go/service/s3" "github.com/aws/aws-sdk-go/service/s3/s3iface" "github.com/chrislusf/seaweedfs/weed/filer" "github.com/chrislusf/seaweedfs/weed/glog" "github.com/chrislusf/seaweedfs/weed/pb/filer_pb" "github.com/chrislusf/seaweedfs/weed/replication/sink" "github.com/chrislusf/seaweedfs/weed/replication/source" "github.com/chrislusf/seaweedfs/weed/util" ) type S3Sink struct { conn s3iface.S3API region string bucket string dir string endpoint string filerSource *source.FilerSource isIncremental bool } func init() { sink.Sinks = append(sink.Sinks, &S3Sink{}) } func (s3sink *S3Sink) GetName() string { return "s3" } func (s3sink *S3Sink) GetSinkToDirectory() string { return s3sink.dir } func (s3sink *S3Sink) IsIncremental() bool { return s3sink.isIncremental } func (s3sink *S3Sink) Initialize(configuration util.Configuration, prefix string) error { glog.V(0).Infof("sink.s3.region: %v", configuration.GetString(prefix+"region")) glog.V(0).Infof("sink.s3.bucket: %v", configuration.GetString(prefix+"bucket")) glog.V(0).Infof("sink.s3.directory: %v", configuration.GetString(prefix+"directory")) glog.V(0).Infof("sink.s3.endpoint: %v", configuration.GetString(prefix+"endpoint")) glog.V(0).Infof("sink.s3.is_incremental: %v", configuration.GetString(prefix+"is_incremental")) s3sink.isIncremental = configuration.GetBool(prefix + "is_incremental") return s3sink.initialize( configuration.GetString(prefix+"aws_access_key_id"), configuration.GetString(prefix+"aws_secret_access_key"), configuration.GetString(prefix+"region"), configuration.GetString(prefix+"bucket"), configuration.GetString(prefix+"directory"), configuration.GetString(prefix+"endpoint"), ) } func (s3sink *S3Sink) SetSourceFiler(s *source.FilerSource) { s3sink.filerSource = s } func (s3sink *S3Sink) initialize(awsAccessKeyId, awsSecretAccessKey, region, bucket, dir, endpoint string) error { s3sink.region = region s3sink.bucket = bucket s3sink.dir = dir s3sink.endpoint = endpoint config := &aws.Config{ Region: aws.String(s3sink.region), Endpoint: aws.String(s3sink.endpoint), S3ForcePathStyle: aws.Bool(true), } if awsAccessKeyId != "" && awsSecretAccessKey != "" { config.Credentials = credentials.NewStaticCredentials(awsAccessKeyId, awsSecretAccessKey, "") } sess, err := session.NewSession(config) if err != nil { return fmt.Errorf("create aws session: %v", err) } s3sink.conn = s3.New(sess) return nil } func (s3sink *S3Sink) DeleteEntry(key string, isDirectory, deleteIncludeChunks bool, signatures []int32) error { key = cleanKey(key) if isDirectory { key = key + "/" } return s3sink.deleteObject(key) } func (s3sink *S3Sink) CreateEntry(key string, entry *filer_pb.Entry, signatures []int32) error { key = cleanKey(key) if entry.IsDirectory { return nil } uploadId, err := s3sink.createMultipartUpload(key, entry) if err != nil { return fmt.Errorf("createMultipartUpload: %v", err) } totalSize := filer.FileSize(entry) chunkViews := filer.ViewFromChunks(s3sink.filerSource.LookupFileId, entry.Chunks, 0, int64(totalSize)) parts := make([]*s3.CompletedPart, len(chunkViews)) var wg sync.WaitGroup for chunkIndex, chunk := range chunkViews { partId := chunkIndex + 1 wg.Add(1) go func(chunk *filer.ChunkView, index int) { defer wg.Done() if part, uploadErr := s3sink.uploadPart(key, uploadId, partId, chunk); uploadErr != nil { err = uploadErr glog.Errorf("uploadPart: %v", uploadErr) } else { parts[index] = part } }(chunk, chunkIndex) } wg.Wait() if err != nil { s3sink.abortMultipartUpload(key, uploadId) return fmt.Errorf("uploadPart: %v", err) } return s3sink.completeMultipartUpload(context.Background(), key, uploadId, parts) } func (s3sink *S3Sink) UpdateEntry(key string, oldEntry *filer_pb.Entry, newParentPath string, newEntry *filer_pb.Entry, deleteIncludeChunks bool, signatures []int32) (foundExistingEntry bool, err error) { key = cleanKey(key) // TODO improve efficiency return false, nil } func cleanKey(key string) string { if strings.HasPrefix(key, "/") { key = key[1:] } return key }