/* * Minio Cloud Storage, (C) 2015 Minio, Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package main import ( "crypto/tls" "encoding/json" "fmt" "net" "net/http" "os" "runtime" "strconv" "strings" "github.com/fatih/color" "github.com/minio/cli" "github.com/minio/minio-xl/pkg/minhttp" "github.com/minio/minio-xl/pkg/probe" ) var serverCmd = cli.Command{ Name: "server", Usage: "Start Minio cloud storage server.", Action: serverMain, CustomHelpTemplate: `NAME: minio {{.Name}} - {{.Usage}} USAGE: minio {{.Name}} [OPTION VALUE] PATH OPTION = min-free-disk VALUE = NN% [DEFAULT: 10%] EXAMPLES: 1. Start minio server on Linux. $ minio {{.Name}} /home/shared 2. Start minio server on Windows. $ minio {{.Name}} C:\MyShare 3. Start minio server bound to a specific IP:PORT, when you have multiple network interfaces. $ minio --address 192.168.1.101:9000 {{.Name}} /home/shared 4. Start minio server with minimum free disk threshold to 5% $ minio {{.Name}} min-free-disk 5% /home/shared/Pictures 5. Start minio server with minimum free disk threshold to 15% and support upto 2000 buckets. $ minio {{.Name}} min-free-disk 15% /home/shared/Documents max-buckets 2000 `, } // cloudServerConfig - http server config type cloudServerConfig struct { /// HTTP server options Address string // Address:Port listening AccessLog bool // Enable access log handler // Credentials. AccessKeyID string // Access key id. SecretAccessKey string // Secret access key. /// FS options Path string // Path to export for cloud storage MinFreeDisk int64 // Minimum free disk space for filesystem MaxBuckets int // Maximum number of buckets suppported by filesystem. /// TLS service TLS bool // TLS on when certs are specified CertFile string // Domain certificate KeyFile string // Domain key } func configureWebServer(conf cloudServerConfig) (*http.Server, *probe.Error) { // Split the api address into host and port. host, port, e := net.SplitHostPort(conf.Address) if e != nil { return nil, probe.NewError(e) } webPort, e := strconv.Atoi(port) if e != nil { return nil, probe.NewError(e) } // Always choose the next port, based on the API address port. webPort = webPort + 1 webAddress := net.JoinHostPort(host, strconv.Itoa(webPort)) // Minio server config webServer := &http.Server{ Addr: webAddress, Handler: getWebAPIHandler(getNewWebAPI(conf)), MaxHeaderBytes: 1 << 20, } if conf.TLS { var err error webServer.TLSConfig = &tls.Config{} webServer.TLSConfig.Certificates = make([]tls.Certificate, 1) webServer.TLSConfig.Certificates[0], err = tls.LoadX509KeyPair(conf.CertFile, conf.KeyFile) if err != nil { return nil, probe.NewError(err) } } return webServer, nil } // configureAPIServer configure a new server instance func configureAPIServer(conf cloudServerConfig) (*http.Server, *probe.Error) { // Minio server config apiServer := &http.Server{ Addr: conf.Address, Handler: getCloudStorageAPIHandler(getNewCloudStorageAPI(conf)), MaxHeaderBytes: 1 << 20, } if conf.TLS { var err error apiServer.TLSConfig = &tls.Config{} apiServer.TLSConfig.Certificates = make([]tls.Certificate, 1) apiServer.TLSConfig.Certificates[0], err = tls.LoadX509KeyPair(conf.CertFile, conf.KeyFile) if err != nil { return nil, probe.NewError(err) } } return apiServer, nil } func printServerMsg(serverConf *http.Server) { host, port, e := net.SplitHostPort(serverConf.Addr) fatalIf(probe.NewError(e), "Unable to split host port.", nil) var hosts []string switch { case host != "": hosts = append(hosts, host) default: addrs, e := net.InterfaceAddrs() fatalIf(probe.NewError(e), "Unable to get interface address.", nil) for _, addr := range addrs { if addr.Network() == "ip+net" { host := strings.Split(addr.String(), "/")[0] if ip := net.ParseIP(host); ip.To4() != nil { hosts = append(hosts, host) } } } } for _, host := range hosts { if serverConf.TLSConfig != nil { Printf(" https://%s:%s\n", host, port) } else { Printf(" http://%s:%s\n", host, port) } } } // parse input string with percent to int64 func parsePercentToInt(s string, bitSize int) (int64, *probe.Error) { i := strings.Index(s, "%") if i < 0 { // no percentage string found try to parse the whole string anyways p, e := strconv.ParseInt(s, 10, bitSize) if e != nil { return 0, probe.NewError(e) } return p, nil } p, e := strconv.ParseInt(s[:i], 10, bitSize) if e != nil { return 0, probe.NewError(e) } return p, nil } func setLogger(conf *configV2) *probe.Error { if conf.IsMongoLoggingEnabled() { if err := log2Mongo(conf.MongoLogger.Addr, conf.MongoLogger.DB, conf.MongoLogger.Collection); err != nil { return err.Trace(conf.MongoLogger.Addr, conf.MongoLogger.DB, conf.MongoLogger.Collection) } } if conf.IsSysloggingEnabled() { if err := log2Syslog(conf.SyslogLogger.Network, conf.SyslogLogger.Addr); err != nil { return err.Trace(conf.SyslogLogger.Network, conf.SyslogLogger.Addr) } } if conf.IsFileLoggingEnabled() { if err := log2File(conf.FileLogger.Filename); err != nil { return err.Trace(conf.FileLogger.Filename) } } return nil } // Generates config if it doesn't exist, otherwise returns back the saved ones. func getConfig() (*configV2, *probe.Error) { if err := createConfigPath(); err != nil { return nil, err.Trace() } config, err := loadConfigV2() if err != nil { if os.IsNotExist(err.ToGoError()) { // Initialize new config, since config file doesn't exist yet config = &configV2{} config.Version = "2" config.Credentials.AccessKeyID = string(mustGenerateAccessKeyID()) config.Credentials.SecretAccessKey = string(mustGenerateSecretAccessKey()) config.Credentials.Region = "us-east-1" if err = saveConfig(config); err != nil { return nil, err.Trace() } return config, nil } return nil, err.Trace() } return config, nil } type accessKeys struct { *configV2 } func (a accessKeys) String() string { magenta := color.New(color.FgMagenta, color.Bold).SprintFunc() white := color.New(color.FgWhite, color.Bold).SprintfFunc() return fmt.Sprint(magenta("AccessKey: ") + white(a.Credentials.AccessKeyID) + " " + magenta("SecretKey: ") + white(a.Credentials.SecretAccessKey) + " " + magenta("Region: ") + white(a.Credentials.Region)) } // JSON - json formatted output func (a accessKeys) JSON() string { b, e := json.Marshal(a) errorIf(probe.NewError(e), "Unable to marshal json", nil) return string(b) } // initServer initialize server func initServer() (*configV2, *probe.Error) { conf, err := getConfig() if err != nil { return nil, err.Trace() } if err := setLogger(conf); err != nil { return nil, err.Trace() } if conf != nil { Println() Println(accessKeys{conf}) } return conf, nil } func checkServerSyntax(c *cli.Context) { if !c.Args().Present() || c.Args().First() == "help" { cli.ShowCommandHelpAndExit(c, "server", 1) } if len(c.Args()) > 5 { fatalIf(probe.NewError(errInvalidArgument), "Unnecessary arguments passed. Please refer ‘mc server help’", nil) } path := strings.TrimSpace(c.Args().Last()) if path == "" { fatalIf(probe.NewError(errInvalidArgument), "Path argument cannot be empty.", nil) } } func serverMain(c *cli.Context) { checkServerSyntax(c) conf, err := initServer() fatalIf(err.Trace(), "Failed to read config for minio.", nil) certFile := c.GlobalString("cert") keyFile := c.GlobalString("key") if (certFile != "" && keyFile == "") || (certFile == "" && keyFile != "") { fatalIf(probe.NewError(errInvalidArgument), "Both certificate and key are required to enable https.", nil) } var minFreeDisk int64 var maxBuckets int minFreeDiskSet := false maxBucketsSet := false // Default minFreeDisk = 10 maxBuckets = 1000 args := c.Args() for len(args) >= 2 { switch args.First() { case "min-free-disk": if minFreeDiskSet { fatalIf(probe.NewError(errInvalidArgument), "Minimum free disk should be set only once.", nil) } args = args.Tail() minFreeDisk, err = parsePercentToInt(args.First(), 64) fatalIf(err.Trace(args.First()), "Invalid minium free disk size "+args.First()+" passed.", nil) args = args.Tail() minFreeDiskSet = true case "max-buckets": if maxBucketsSet { fatalIf(probe.NewError(errInvalidArgument), "Maximum buckets should be set only once.", nil) } args = args.Tail() var e error maxBuckets, e = strconv.Atoi(args.First()) fatalIf(probe.NewError(e), "Invalid max buckets "+args.First()+" passed.", nil) args = args.Tail() maxBucketsSet = true default: cli.ShowCommandHelpAndExit(c, "server", 1) // last argument is exit code } } path := strings.TrimSpace(c.Args().Last()) // Last argument is always path if _, err := os.Stat(path); err != nil { fatalIf(probe.NewError(err), "Unable to validate the path", nil) } tls := (certFile != "" && keyFile != "") serverConfig := cloudServerConfig{ Address: c.GlobalString("address"), AccessLog: c.GlobalBool("enable-accesslog"), AccessKeyID: conf.Credentials.AccessKeyID, SecretAccessKey: conf.Credentials.SecretAccessKey, Path: path, MinFreeDisk: minFreeDisk, MaxBuckets: maxBuckets, TLS: tls, CertFile: certFile, KeyFile: keyFile, } // configure API server. apiServer, err := configureAPIServer(serverConfig) errorIf(err.Trace(), "Failed to configure API server.", nil) Println("\nMinio Object Storage:") printServerMsg(apiServer) // configure Web server. webServer, err := configureWebServer(serverConfig) errorIf(err.Trace(), "Failed to configure Web server.", nil) Println("\nMinio Browser:") printServerMsg(webServer) Println("\nTo configure Minio Client:") if runtime.GOOS == "windows" { Println(" Download \"mc\" from https://dl.minio.io/client/mc/release/" + runtime.GOOS + "-" + runtime.GOARCH + "/mc.exe") Println(" $ mc.exe config host add myminio http://localhost:9000 " + conf.Credentials.AccessKeyID + " " + conf.Credentials.SecretAccessKey) } else { Println(" $ wget https://dl.minio.io/client/mc/release/" + runtime.GOOS + "-" + runtime.GOARCH + "/mc") Println(" $ chmod 755 mc") Println(" $ ./mc config host add myminio http://localhost:9000 " + conf.Credentials.AccessKeyID + " " + conf.Credentials.SecretAccessKey) } // Start server. err = minhttp.ListenAndServe(apiServer, webServer) errorIf(err.Trace(), "Failed to start the minio server.", nil) }