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package S3Sink
import (
"encoding/base64"
"fmt"
"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/aws/aws-sdk-go/service/s3/s3manager"
"github.com/seaweedfs/seaweedfs/weed/s3api/s3_constants"
"strconv"
"strings"
"github.com/seaweedfs/seaweedfs/weed/filer"
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
"github.com/seaweedfs/seaweedfs/weed/replication/sink"
"github.com/seaweedfs/seaweedfs/weed/replication/source"
"github.com/seaweedfs/seaweedfs/weed/util"
)
type S3Sink struct {
conn s3iface.S3API
filerSource *source.FilerSource
isIncremental bool
keepPartSize bool
s3DisableContentMD5Validation bool
s3ForcePathStyle bool
uploaderConcurrency int
uploaderMaxUploadParts int
uploaderPartSizeMb int
region string
bucket string
dir string
endpoint string
acl string
}
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 {
configuration.SetDefault(prefix+"region", "us-east-2")
configuration.SetDefault(prefix+"directory", "/")
configuration.SetDefault(prefix+"keep_part_size", true)
configuration.SetDefault(prefix+"uploader_max_upload_parts", 1000)
configuration.SetDefault(prefix+"uploader_part_size_mb", 8)
configuration.SetDefault(prefix+"uploader_concurrency", 8)
configuration.SetDefault(prefix+"s3_disable_content_md5_validation", true)
configuration.SetDefault(prefix+"s3_force_path_style", true)
s3sink.region = configuration.GetString(prefix + "region")
s3sink.bucket = configuration.GetString(prefix + "bucket")
s3sink.dir = configuration.GetString(prefix + "directory")
s3sink.endpoint = configuration.GetString(prefix + "endpoint")
s3sink.acl = configuration.GetString(prefix + "acl")
s3sink.isIncremental = configuration.GetBool(prefix + "is_incremental")
s3sink.keepPartSize = configuration.GetBool(prefix + "keep_part_size")
s3sink.s3DisableContentMD5Validation = configuration.GetBool(prefix + "s3_disable_content_md5_validation")
s3sink.s3ForcePathStyle = configuration.GetBool(prefix + "s3_force_path_style")
s3sink.uploaderMaxUploadParts = configuration.GetInt(prefix + "uploader_max_upload_parts")
s3sink.uploaderPartSizeMb = configuration.GetInt(prefix + "uploader_part_size")
s3sink.uploaderConcurrency = configuration.GetInt(prefix + "uploader_concurrency")
glog.V(0).Infof("sink.s3.region: %v", s3sink.region)
glog.V(0).Infof("sink.s3.bucket: %v", s3sink.bucket)
glog.V(0).Infof("sink.s3.directory: %v", s3sink.dir)
glog.V(0).Infof("sink.s3.endpoint: %v", s3sink.endpoint)
glog.V(0).Infof("sink.s3.acl: %v", s3sink.acl)
glog.V(0).Infof("sink.s3.is_incremental: %v", s3sink.isIncremental)
glog.V(0).Infof("sink.s3.s3_disable_content_md5_validation: %v", s3sink.s3DisableContentMD5Validation)
glog.V(0).Infof("sink.s3.s3_force_path_style: %v", s3sink.s3ForcePathStyle)
glog.V(0).Infof("sink.s3.keep_part_size: %v", s3sink.keepPartSize)
if s3sink.uploaderMaxUploadParts > s3manager.MaxUploadParts {
s3sink.uploaderMaxUploadParts = s3manager.MaxUploadParts
glog.Warningf("uploader_max_upload_parts is greater than the maximum number of parts allowed when uploading multiple parts to Amazon S3")
glog.V(0).Infof("sink.s3.uploader_max_upload_parts: %v => %v", s3sink.uploaderMaxUploadParts, s3manager.MaxUploadParts)
} else {
glog.V(0).Infof("sink.s3.uploader_max_upload_parts: %v", s3sink.uploaderMaxUploadParts)
}
glog.V(0).Infof("sink.s3.uploader_part_size_mb: %v", s3sink.uploaderPartSizeMb)
glog.V(0).Infof("sink.s3.uploader_concurrency: %v", s3sink.uploaderConcurrency)
return s3sink.initialize(
configuration.GetString(prefix+"aws_access_key_id"),
configuration.GetString(prefix+"aws_secret_access_key"),
)
}
func (s3sink *S3Sink) SetSourceFiler(s *source.FilerSource) {
s3sink.filerSource = s
}
func (s3sink *S3Sink) initialize(awsAccessKeyId, awsSecretAccessKey string) error {
config := &aws.Config{
Region: aws.String(s3sink.region),
Endpoint: aws.String(s3sink.endpoint),
S3DisableContentMD5Validation: aws.Bool(s3sink.s3DisableContentMD5Validation),
S3ForcePathStyle: aws.Bool(s3sink.s3ForcePathStyle),
}
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 {
return nil
}
input := &s3.DeleteObjectInput{
Bucket: aws.String(s3sink.bucket),
Key: aws.String(key),
}
result, err := s3sink.conn.DeleteObject(input)
if err == nil {
glog.V(2).Infof("[%s] delete %s: %v", s3sink.bucket, key, result)
} else {
glog.Errorf("[%s] delete %s: %v", s3sink.bucket, key, err)
}
return err
}
func (s3sink *S3Sink) CreateEntry(key string, entry *filer_pb.Entry, signatures []int32) (err error) {
key = cleanKey(key)
if entry.IsDirectory {
return nil
}
reader := filer.NewFileReader(s3sink.filerSource, entry)
// Create an uploader with the session and custom options
uploader := s3manager.NewUploaderWithClient(s3sink.conn, func(u *s3manager.Uploader) {
u.PartSize = int64(s3sink.uploaderPartSizeMb * 1024 * 1024)
u.Concurrency = s3sink.uploaderConcurrency
u.MaxUploadParts = s3sink.uploaderMaxUploadParts
})
if s3sink.keepPartSize {
switch chunkCount := len(entry.Chunks); {
case chunkCount > 1:
if firstChunkSize := int64(entry.Chunks[0].Size); firstChunkSize > s3manager.MinUploadPartSize {
uploader.PartSize = firstChunkSize
}
default:
uploader.PartSize = 0
}
}
doSaveMtime := true
if entry.Extended == nil {
entry.Extended = make(map[string][]byte)
} else if _, ok := entry.Extended[s3_constants.AmzUserMetaMtime]; ok {
doSaveMtime = false
}
if doSaveMtime {
entry.Extended[s3_constants.AmzUserMetaMtime] = []byte(strconv.FormatInt(entry.Attributes.Mtime, 10))
}
// process tagging
tags := ""
for k, v := range entry.Extended {
if len(tags) > 0 {
tags = tags + "&"
}
tags = tags + k + "=" + string(v)
}
// Upload the file to S3.
uploadInput := s3manager.UploadInput{
Bucket: aws.String(s3sink.bucket),
Key: aws.String(key),
Body: reader,
Tagging: aws.String(tags),
}
if len(entry.Attributes.Md5) > 0 {
uploadInput.ContentMD5 = aws.String(base64.StdEncoding.EncodeToString([]byte(entry.Attributes.Md5)))
}
_, err = uploader.Upload(&uploadInput)
return err
}
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)
return true, s3sink.CreateEntry(key, newEntry, signatures)
}
func cleanKey(key string) string {
if strings.HasPrefix(key, "/") {
key = key[1:]
}
return key
}
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