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package command
import (
"context"
"crypto/tls"
"crypto/x509"
"fmt"
"io/ioutil"
"net"
"os"
"runtime"
"strings"
"time"
"github.com/gorilla/mux"
"google.golang.org/grpc/credentials/tls/certprovider"
"google.golang.org/grpc/credentials/tls/certprovider/pemfile"
"google.golang.org/grpc/reflection"
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/pb"
"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
"github.com/seaweedfs/seaweedfs/weed/pb/s3_pb"
"github.com/seaweedfs/seaweedfs/weed/s3api"
"github.com/seaweedfs/seaweedfs/weed/s3api/s3err"
"github.com/seaweedfs/seaweedfs/weed/security"
stats_collect "github.com/seaweedfs/seaweedfs/weed/stats"
"github.com/seaweedfs/seaweedfs/weed/util"
"github.com/seaweedfs/seaweedfs/weed/util/version"
)
var (
s3StandaloneOptions S3Options
)
type S3Options struct {
filer *string
bindIp *string
port *int
portHttps *int
portGrpc *int
config *string
iamConfig *string
domainName *string
allowedOrigins *string
tlsPrivateKey *string
tlsCertificate *string
tlsCACertificate *string
tlsVerifyClientCert *bool
metricsHttpPort *int
metricsHttpIp *string
allowEmptyFolder *bool
allowDeleteBucketNotEmpty *bool
auditLogConfig *string
localFilerSocket *string
dataCenter *string
localSocket *string
certProvider certprovider.Provider
idleTimeout *int
concurrentUploadLimitMB *int
concurrentFileUploadLimit *int
}
func init() {
cmdS3.Run = runS3 // break init cycle
s3StandaloneOptions.filer = cmdS3.Flag.String("filer", "localhost:8888", "comma-separated filer server addresses for high availability")
s3StandaloneOptions.bindIp = cmdS3.Flag.String("ip.bind", "", "ip address to bind to. Default to localhost.")
s3StandaloneOptions.port = cmdS3.Flag.Int("port", 8333, "s3 server http listen port")
s3StandaloneOptions.portHttps = cmdS3.Flag.Int("port.https", 0, "s3 server https listen port")
s3StandaloneOptions.portGrpc = cmdS3.Flag.Int("port.grpc", 0, "s3 server grpc listen port")
s3StandaloneOptions.domainName = cmdS3.Flag.String("domainName", "", "suffix of the host name in comma separated list, {bucket}.{domainName}")
s3StandaloneOptions.allowedOrigins = cmdS3.Flag.String("allowedOrigins", "*", "comma separated list of allowed origins")
s3StandaloneOptions.dataCenter = cmdS3.Flag.String("dataCenter", "", "prefer to read and write to volumes in this data center")
s3StandaloneOptions.config = cmdS3.Flag.String("config", "", "path to the config file")
s3StandaloneOptions.iamConfig = cmdS3.Flag.String("iam.config", "", "path to the advanced IAM config file")
s3StandaloneOptions.auditLogConfig = cmdS3.Flag.String("auditLogConfig", "", "path to the audit log 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")
s3StandaloneOptions.tlsCACertificate = cmdS3.Flag.String("cacert.file", "", "path to the TLS CA certificate file")
s3StandaloneOptions.tlsVerifyClientCert = cmdS3.Flag.Bool("tlsVerifyClientCert", false, "whether to verify the client's certificate")
s3StandaloneOptions.metricsHttpPort = cmdS3.Flag.Int("metricsPort", 0, "Prometheus metrics listen port")
s3StandaloneOptions.metricsHttpIp = cmdS3.Flag.String("metricsIp", "", "metrics listen ip. If empty, default to same as -ip.bind option.")
s3StandaloneOptions.allowEmptyFolder = cmdS3.Flag.Bool("allowEmptyFolder", true, "allow empty folders")
s3StandaloneOptions.allowDeleteBucketNotEmpty = cmdS3.Flag.Bool("allowDeleteBucketNotEmpty", true, "allow recursive deleting all entries along with bucket")
s3StandaloneOptions.localFilerSocket = cmdS3.Flag.String("localFilerSocket", "", "local filer socket path")
s3StandaloneOptions.localSocket = cmdS3.Flag.String("localSocket", "", "default to /tmp/seaweedfs-s3-<port>.sock")
s3StandaloneOptions.idleTimeout = cmdS3.Flag.Int("idleTimeout", 10, "connection idle seconds")
s3StandaloneOptions.concurrentUploadLimitMB = cmdS3.Flag.Int("concurrentUploadLimitMB", 128, "limit total concurrent upload size")
s3StandaloneOptions.concurrentFileUploadLimit = cmdS3.Flag.Int("concurrentFileUploadLimit", 0, "limit number of concurrent file uploads, 0 means unlimited")
}
var cmdS3 = &Command{
UsageLine: "s3 [-port=8333] [-filer=<ip:port>[,<ip:port>]...] [-config=</path/to/config.json>]",
Short: "start a s3 API compatible server that is backed by filer(s)",
Long: `start a s3 API compatible server that is backed by filer(s).
Multiple filer addresses can be specified for high availability, separated by commas.
The S3 server will automatically failover between filers if one becomes unavailable.
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": "anonymous",
"actions": [
"Read"
]
},
{
"name": "some_admin_user",
"credentials": [
{
"accessKey": "some_access_key1",
"secretKey": "some_secret_key1"
}
],
"actions": [
"Admin",
"Read",
"List",
"Tagging",
"Write"
]
},
{
"name": "some_read_only_user",
"credentials": [
{
"accessKey": "some_access_key2",
"secretKey": "some_secret_key2"
}
],
"actions": [
"Read"
]
},
{
"name": "some_normal_user",
"credentials": [
{
"accessKey": "some_access_key3",
"secretKey": "some_secret_key3"
}
],
"actions": [
"Read",
"List",
"Tagging",
"Write"
]
},
{
"name": "user_limited_to_bucket1",
"credentials": [
{
"accessKey": "some_access_key4",
"secretKey": "some_secret_key4"
}
],
"actions": [
"Read:bucket1",
"List:bucket1",
"Tagging:bucket1",
"Write:bucket1"
]
}
]
}
Alternatively, you can use environment variables as fallback admin credentials:
AWS_ACCESS_KEY_ID=your_access_key AWS_SECRET_ACCESS_KEY=your_secret_key weed s3
Environment variables are only used when no S3 configuration file is provided
and no configuration is available from the filer. This provides a simple way
to get started without requiring configuration files.
`,
}
func runS3(cmd *Command, args []string) bool {
util.LoadSecurityConfiguration()
switch {
case *s3StandaloneOptions.metricsHttpIp != "":
// noting to do, use s3StandaloneOptions.metricsHttpIp
case *s3StandaloneOptions.bindIp != "":
*s3StandaloneOptions.metricsHttpIp = *s3StandaloneOptions.bindIp
}
go stats_collect.StartMetricsServer(*s3StandaloneOptions.metricsHttpIp, *s3StandaloneOptions.metricsHttpPort)
return s3StandaloneOptions.startS3Server()
}
// GetCertificateWithUpdate Auto refreshing TSL certificate
func (s3opt *S3Options) GetCertificateWithUpdate(*tls.ClientHelloInfo) (*tls.Certificate, error) {
certs, err := s3opt.certProvider.KeyMaterial(context.Background())
if certs == nil {
return nil, err
}
return &certs.Certs[0], err
}
func (s3opt *S3Options) startS3Server() bool {
filerAddresses := pb.ServerAddresses(*s3opt.filer).ToAddresses()
filerBucketsPath := "/buckets"
filerGroup := ""
var masterAddresses []pb.ServerAddress
grpcDialOption := security.LoadClientTLS(util.GetViper(), "grpc.client")
// metrics read from the filer
var metricsAddress string
var metricsIntervalSec int
for {
err := pb.WithOneOfGrpcFilerClients(false, filerAddresses, grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
resp, err := client.GetFilerConfiguration(context.Background(), &filer_pb.GetFilerConfigurationRequest{})
if err != nil {
return fmt.Errorf("get filer configuration: %v", err)
}
filerBucketsPath = resp.DirBuckets
filerGroup = resp.FilerGroup
// Get master addresses for filer discovery
masterAddresses = pb.ServerAddresses(strings.Join(resp.Masters, ",")).ToAddresses()
metricsAddress, metricsIntervalSec = resp.MetricsAddress, int(resp.MetricsIntervalSec)
glog.V(0).Infof("S3 read filer buckets dir: %s", filerBucketsPath)
if len(masterAddresses) > 0 {
glog.V(0).Infof("S3 read master addresses for discovery: %v", masterAddresses)
}
return nil
})
if err != nil {
glog.V(0).Infof("wait to connect to filers %v grpc address", filerAddresses)
time.Sleep(time.Second)
} else {
glog.V(0).Infof("connected to filers %v", filerAddresses)
break
}
}
go stats_collect.LoopPushingMetric("s3", stats_collect.SourceName(uint32(*s3opt.port)), metricsAddress, metricsIntervalSec)
router := mux.NewRouter().SkipClean(true)
var localFilerSocket string
if s3opt.localFilerSocket != nil {
localFilerSocket = *s3opt.localFilerSocket
}
var s3ApiServer *s3api.S3ApiServer
var s3ApiServer_err error
// Create S3 server with optional advanced IAM integration
var iamConfigPath string
if s3opt.iamConfig != nil && *s3opt.iamConfig != "" {
iamConfigPath = *s3opt.iamConfig
glog.V(0).Infof("Starting S3 API Server with advanced IAM integration")
} else {
glog.V(0).Infof("Starting S3 API Server with standard IAM")
}
s3ApiServer, s3ApiServer_err = s3api.NewS3ApiServer(router, &s3api.S3ApiServerOption{
Filers: filerAddresses,
Masters: masterAddresses,
Port: *s3opt.port,
Config: *s3opt.config,
DomainName: *s3opt.domainName,
AllowedOrigins: strings.Split(*s3opt.allowedOrigins, ","),
BucketsPath: filerBucketsPath,
GrpcDialOption: grpcDialOption,
AllowEmptyFolder: *s3opt.allowEmptyFolder,
AllowDeleteBucketNotEmpty: *s3opt.allowDeleteBucketNotEmpty,
LocalFilerSocket: localFilerSocket,
DataCenter: *s3opt.dataCenter,
FilerGroup: filerGroup,
IamConfig: iamConfigPath, // Advanced IAM config (optional)
ConcurrentUploadLimit: int64(*s3opt.concurrentUploadLimitMB) * 1024 * 1024,
ConcurrentFileUploadLimit: int64(*s3opt.concurrentFileUploadLimit),
})
if s3ApiServer_err != nil {
glog.Fatalf("S3 API Server startup error: %v", s3ApiServer_err)
}
if *s3opt.portGrpc == 0 {
*s3opt.portGrpc = 10000 + *s3opt.port
}
if *s3opt.bindIp == "" {
*s3opt.bindIp = "localhost"
}
if runtime.GOOS != "windows" {
localSocket := *s3opt.localSocket
if localSocket == "" {
localSocket = fmt.Sprintf("/tmp/seaweedfs-s3-%d.sock", *s3opt.port)
}
if err := os.Remove(localSocket); err != nil && !os.IsNotExist(err) {
glog.Fatalf("Failed to remove %s, error: %s", localSocket, err.Error())
}
go func() {
// start on local unix socket
s3SocketListener, err := net.Listen("unix", localSocket)
if err != nil {
glog.Fatalf("Failed to listen on %s: %v", localSocket, err)
}
newHttpServer(router, nil).Serve(s3SocketListener)
}()
}
listenAddress := fmt.Sprintf("%s:%d", *s3opt.bindIp, *s3opt.port)
s3ApiListener, s3ApiLocalListener, err := util.NewIpAndLocalListeners(
*s3opt.bindIp, *s3opt.port, time.Duration(*s3opt.idleTimeout)*time.Second)
if err != nil {
glog.Fatalf("S3 API Server listener on %s error: %v", listenAddress, err)
}
if len(*s3opt.auditLogConfig) > 0 {
s3err.InitAuditLog(*s3opt.auditLogConfig)
if s3err.Logger != nil {
defer s3err.Logger.Close()
}
}
// starting grpc server
grpcPort := *s3opt.portGrpc
grpcL, grpcLocalL, err := util.NewIpAndLocalListeners(*s3opt.bindIp, grpcPort, 0)
if err != nil {
glog.Fatalf("s3 failed to listen on grpc port %d: %v", grpcPort, err)
}
grpcS := pb.NewGrpcServer(security.LoadServerTLS(util.GetViper(), "grpc.s3"))
s3_pb.RegisterSeaweedS3Server(grpcS, s3ApiServer)
reflection.Register(grpcS)
if grpcLocalL != nil {
go grpcS.Serve(grpcLocalL)
}
go grpcS.Serve(grpcL)
if *s3opt.tlsPrivateKey != "" {
pemfileOptions := pemfile.Options{
CertFile: *s3opt.tlsCertificate,
KeyFile: *s3opt.tlsPrivateKey,
RefreshDuration: security.CredRefreshingInterval,
}
if s3opt.certProvider, err = pemfile.NewProvider(pemfileOptions); err != nil {
glog.Fatalf("pemfile.NewProvider(%v) failed: %v", pemfileOptions, err)
}
caCertPool := x509.NewCertPool()
if *s3opt.tlsCACertificate != "" {
// load CA certificate file and add it to list of client CAs
caCertFile, err := ioutil.ReadFile(*s3opt.tlsCACertificate)
if err != nil {
glog.Fatalf("error reading CA certificate: %v", err)
}
caCertPool.AppendCertsFromPEM(caCertFile)
}
clientAuth := tls.NoClientCert
if *s3opt.tlsVerifyClientCert {
clientAuth = tls.RequireAndVerifyClientCert
}
tlsConfig := &tls.Config{
GetCertificate: s3opt.GetCertificateWithUpdate,
ClientAuth: clientAuth,
ClientCAs: caCertPool,
}
err = security.FixTlsConfig(util.GetViper(), tlsConfig)
if err != nil {
glog.Fatalf("error with tls config: %v", err)
}
if *s3opt.portHttps == 0 {
glog.V(0).Infof("Start Seaweed S3 API Server %s at https port %d", version.Version(), *s3opt.port)
if s3ApiLocalListener != nil {
go func() {
if err = newHttpServer(router, tlsConfig).ServeTLS(s3ApiLocalListener, "", ""); err != nil {
glog.Fatalf("S3 API Server Fail to serve: %v", err)
}
}()
}
if err = newHttpServer(router, tlsConfig).ServeTLS(s3ApiListener, "", ""); err != nil {
glog.Fatalf("S3 API Server Fail to serve: %v", err)
}
} else {
glog.V(0).Infof("Start Seaweed S3 API Server %s at https port %d", version.Version(), *s3opt.portHttps)
s3ApiListenerHttps, s3ApiLocalListenerHttps, _ := util.NewIpAndLocalListeners(
*s3opt.bindIp, *s3opt.portHttps, time.Duration(*s3opt.idleTimeout)*time.Second)
if s3ApiLocalListenerHttps != nil {
go func() {
if err = newHttpServer(router, tlsConfig).ServeTLS(s3ApiLocalListenerHttps, "", ""); err != nil {
glog.Fatalf("S3 API Server Fail to serve: %v", err)
}
}()
}
go func() {
if err = newHttpServer(router, tlsConfig).ServeTLS(s3ApiListenerHttps, "", ""); err != nil {
glog.Fatalf("S3 API Server Fail to serve: %v", err)
}
}()
}
}
if *s3opt.tlsPrivateKey == "" || *s3opt.portHttps > 0 {
glog.V(0).Infof("Start Seaweed S3 API Server %s at http port %d", version.Version(), *s3opt.port)
if s3ApiLocalListener != nil {
go func() {
if err = newHttpServer(router, nil).Serve(s3ApiLocalListener); err != nil {
glog.Fatalf("S3 API Server Fail to serve: %v", err)
}
}()
}
if err = newHttpServer(router, nil).Serve(s3ApiListener); err != nil {
glog.Fatalf("S3 API Server Fail to serve: %v", err)
}
}
return true
}