seaweedfs/weed/command/s3.go

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package command
import (
"context"
"fmt"
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"net/http"
"time"
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"github.com/chrislusf/seaweedfs/weed/pb"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
"github.com/chrislusf/seaweedfs/weed/security"
"github.com/gorilla/mux"
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"github.com/chrislusf/seaweedfs/weed/glog"
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"github.com/chrislusf/seaweedfs/weed/s3api"
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stats_collect "github.com/chrislusf/seaweedfs/weed/stats"
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"github.com/chrislusf/seaweedfs/weed/util"
)
var (
s3StandaloneOptions S3Options
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)
type S3Options struct {
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filer *string
port *int
config *string
domainName *string
tlsPrivateKey *string
tlsCertificate *string
metricsHttpPort *int
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}
func init() {
cmdS3.Run = runS3 // break init cycle
s3StandaloneOptions.filer = cmdS3.Flag.String("filer", "localhost:8888", "filer server address")
s3StandaloneOptions.port = cmdS3.Flag.Int("port", 8333, "s3 server http listen port")
s3StandaloneOptions.domainName = cmdS3.Flag.String("domainName", "", "suffix of the host name, {bucket}.{domainName}")
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s3StandaloneOptions.config = cmdS3.Flag.String("config", "", "path to the config file")
s3StandaloneOptions.tlsPrivateKey = cmdS3.Flag.String("key.file", "", "path to the TLS private key file")
s3StandaloneOptions.tlsCertificate = cmdS3.Flag.String("cert.file", "", "path to the TLS certificate file")
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s3StandaloneOptions.metricsHttpPort = cmdS3.Flag.Int("metricsPort", 0, "Prometheus metrics listen port")
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}
var cmdS3 = &Command{
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UsageLine: "s3 [-port=8333] [-filer=<ip:port>] [-config=</path/to/config.json>]",
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Short: "start a s3 API compatible server that is backed by a filer",
Long: `start a s3 API compatible server that is backed by a filer.
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By default, you can use any access key and secret key to access the S3 APIs.
To enable credential based access, create a config.json file similar to this:
{
"identities": [
{
"name": "some_name",
"credentials": [
{
"accessKey": "some_access_key1",
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"secretKey": "some_secret_key1"
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}
],
"actions": [
"Admin",
"Read",
"Write"
]
},
{
"name": "some_read_only_user",
"credentials": [
{
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"accessKey": "some_access_key2",
"secretKey": "some_secret_key2"
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}
],
"actions": [
"Read"
]
},
{
"name": "some_normal_user",
"credentials": [
{
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"accessKey": "some_access_key3",
"secretKey": "some_secret_key3"
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}
],
"actions": [
"Read",
"Write"
]
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},
{
"name": "user_limited_to_bucket1",
"credentials": [
{
"accessKey": "some_access_key4",
"secretKey": "some_secret_key4"
}
],
"actions": [
"Read:bucket1",
"Write:bucket1"
]
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}
]
}
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`,
}
func runS3(cmd *Command, args []string) bool {
util.LoadConfiguration("security", false)
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go stats_collect.StartMetricsServer(*s3StandaloneOptions.metricsHttpPort)
return s3StandaloneOptions.startS3Server()
}
func (s3opt *S3Options) startS3Server() bool {
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filerGrpcAddress, err := pb.ParseFilerGrpcAddress(*s3opt.filer)
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if err != nil {
glog.Fatal(err)
return false
}
filerBucketsPath := "/buckets"
grpcDialOption := security.LoadClientTLS(util.GetViper(), "grpc.client")
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// metrics read from the filer
var metricsAddress string
var metricsIntervalSec int
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for {
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err = pb.WithGrpcFilerClient(filerGrpcAddress, grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
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resp, err := client.GetFilerConfiguration(context.Background(), &filer_pb.GetFilerConfigurationRequest{})
if err != nil {
return fmt.Errorf("get filer %s configuration: %v", filerGrpcAddress, err)
}
filerBucketsPath = resp.DirBuckets
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metricsAddress, metricsIntervalSec = resp.MetricsAddress, int(resp.MetricsIntervalSec)
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glog.V(0).Infof("S3 read filer buckets dir: %s", filerBucketsPath)
return nil
})
if err != nil {
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glog.V(0).Infof("wait to connect to filer %s grpc address %s", *s3opt.filer, filerGrpcAddress)
time.Sleep(time.Second)
} else {
glog.V(0).Infof("connected to filer %s grpc address %s", *s3opt.filer, filerGrpcAddress)
break
}
}
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go stats_collect.LoopPushingMetric("s3", stats_collect.SourceName(uint32(*s3opt.port)), metricsAddress, metricsIntervalSec)
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router := mux.NewRouter().SkipClean(true)
_, s3ApiServer_err := s3api.NewS3ApiServer(router, &s3api.S3ApiServerOption{
Filer: *s3opt.filer,
Port: *s3opt.port,
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FilerGrpcAddress: filerGrpcAddress,
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Config: *s3opt.config,
DomainName: *s3opt.domainName,
BucketsPath: filerBucketsPath,
GrpcDialOption: grpcDialOption,
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})
if s3ApiServer_err != nil {
glog.Fatalf("S3 API Server startup error: %v", s3ApiServer_err)
}
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httpS := &http.Server{Handler: router}
listenAddress := fmt.Sprintf(":%d", *s3opt.port)
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s3ApiListener, err := util.NewListener(listenAddress, time.Duration(10)*time.Second)
if err != nil {
glog.Fatalf("S3 API Server listener on %s error: %v", listenAddress, err)
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}
if *s3opt.tlsPrivateKey != "" {
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glog.V(0).Infof("Start Seaweed S3 API Server %s at https port %d", util.Version(), *s3opt.port)
if err = httpS.ServeTLS(s3ApiListener, *s3opt.tlsCertificate, *s3opt.tlsPrivateKey); err != nil {
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glog.Fatalf("S3 API Server Fail to serve: %v", err)
}
} else {
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glog.V(0).Infof("Start Seaweed S3 API Server %s at http port %d", util.Version(), *s3opt.port)
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if err = httpS.Serve(s3ApiListener); err != nil {
glog.Fatalf("S3 API Server Fail to serve: %v", err)
}
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}
return true
}