Service a new WebUI server at port 8081.

It is provided to avoid the router clutter on the Object API
end. This is just a first cut sample we are going to build on
top of this the new management console UI.

General interest comes from subsequently writing a small UI to
generate `AccessKey` and `SecretKey` to build authorization
layer.

main.go

@@ -8,15 +8,70 @@ import (
 	"github.com/minio-io/minio/pkg/server"
 )
 
+func getStorageType(input string) server.StorageType {
+	switch {
+	case input == "file":
+		return server.FileStorage
+	case input == "inmemory":
+		return server.InMemoryStorage
+	default:
+		{
+			log.Println("Unknown storage type:", input)
+			log.Println("Choosing default storage type as 'file'..")
+			return server.FileStorage
+		}
+	}
+}
+
+func runCmd(c *cli.Context) {
+	storageTypeStr := c.String("storage-type")
+	apiaddress := c.String("api-address")
+	webaddress := c.String("web-address")
+	certFile := c.String("cert")
+	keyFile := c.String("key")
+	if (certFile != "" && keyFile == "") || (certFile == "" && keyFile != "") {
+		log.Fatal("Both certificate and key must be provided to enable https")
+	}
+	tls := (certFile != "" && keyFile != "")
+	storageType := getStorageType(storageTypeStr)
+	var serverConfigs []server.ServerConfig
+	apiServerConfig := server.ServerConfig{
+		Address:  apiaddress,
+		Tls:      tls,
+		CertFile: certFile,
+		KeyFile:  keyFile,
+		ApiType: server.MinioApi{
+			StorageType: storageType,
+		},
+	}
+	webUiServerConfig := server.ServerConfig{
+		Address:  webaddress,
+		Tls:      false,
+		CertFile: "",
+		KeyFile:  "",
+		ApiType: server.WebUIApi{
+			Websocket: false,
+		},
+	}
+	serverConfigs = append(serverConfigs, apiServerConfig)
+	serverConfigs = append(serverConfigs, webUiServerConfig)
+	server.Start(serverConfigs)
+}
+
 func main() {
 	app := cli.NewApp()
 	app.Name = "minio"
 	app.Usage = ""
 	app.Flags = []cli.Flag{
 		cli.StringFlag{
-			Name:  "http-address,a",
+			Name:  "api-address,a",
 			Value: ":8080",
-			Usage: "http address to listen on",
+			Usage: "address for incoming API requests",
+		},
+		cli.StringFlag{
+			Name:  "web-address,w",
+			Value: ":8081",
+			Usage: "address for incoming Management UI requests",
 		},
 		cli.StringFlag{
 			Name:  "cert,c",
@@ -34,40 +89,6 @@ func main() {
 			Usage: "valid entries: file,inmemory",
 		},
 	}
-	app.Action = func(c *cli.Context) {
+	app.Action = runCmd
-		storageTypeStr := c.String("storage-type")
-		address := c.String("http-address")
-		log.Println(address)
-		certFile := c.String("cert")
-		keyFile := c.String("key")
-		if (certFile != "" && keyFile == "") || (certFile == "" && keyFile != "") {
-			log.Fatal("Both certificate and key must be provided to enable https")
-		}
-		tls := (certFile != "" && keyFile != "")
-		storageType := getStorageType(storageTypeStr)
-		serverConfig := server.ServerConfig{
-			Address:     address,
-			Tls:         tls,
-			CertFile:    certFile,
-			KeyFile:     keyFile,
-			StorageType: storageType,
-		}
-		server.Start(serverConfig)
-	}
 	app.Run(os.Args)
 }
-
-func getStorageType(input string) server.StorageType {
-	switch {
-	case input == "file":
-		return server.FileStorage
-	case input == "inmemory":
-		return server.InMemoryStorage
-	default:
-		{
-			log.Println("Unknown storage type:", input)
-			log.Println("Choosing default storage type as 'file'..")
-			return server.FileStorage
-		}
-	}
-}

pkg/api/webuiapi/webuiapi.go

@@ -0,0 +1,46 @@
+/*
+ * Mini Object Storage, (C) 2014 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 webuiapi
+
+import (
+	"fmt"
+	"net/http"
+
+	"github.com/gorilla/mux"
+)
+
+type webUiApi struct {
+}
+
+func HttpHandler() http.Handler {
+	mux := mux.NewRouter()
+	var api = webUiApi{}
+	mux.HandleFunc("/", api.homeHandler).Methods("GET")
+	/*
+		mux.HandleFunc("/{bucket}/", api.listObjectsHandler).Methods("GET")
+		mux.HandleFunc("/{bucket}/", api.putBucketHandler).Methods("PUT")
+		mux.HandleFunc("/{bucket}/{object:.*}", api.getObjectHandler).Methods("GET")
+		mux.HandleFunc("/{bucket}/{object:.*}", api.headObjectHandler).Methods("HEAD")
+		mux.HandleFunc("/{bucket}/{object:.*}", api.putObjectHandler).Methods("PUT")
+	*/
+	return mux
+}
+
+func (web *webUiApi) homeHandler(w http.ResponseWriter, req *http.Request) {
+	w.Header().Set("Server", "Minio Management Console")
+	fmt.Fprintln(w, "Welcome!")
+}

pkg/httpserver/httpserver.go

@@ -27,6 +27,7 @@ type HttpServerConfig struct {
 	TLS       bool
 	CertFile  string
 	KeyFile   string
+	Websocket bool
 }
 
 type HttpServer struct{}
@@ -39,7 +40,8 @@ func Start(handler http.Handler, config HttpServerConfig) (chan<- string, <-chan
 	return ctrlChannel, errorChannel, &server
 }
 
-func start(ctrlChannel <-chan string, errorChannel chan<- error, router http.Handler, config HttpServerConfig, server *HttpServer) {
+func start(ctrlChannel <-chan string, errorChannel chan<- error,
+	router http.Handler, config HttpServerConfig, server *HttpServer) {
 	var err error
 
 	// Minio server config

pkg/server/server.go

@@ -23,11 +23,12 @@ import (
 	"path"
 	"reflect"
 
+	"github.com/minio-io/minio/pkg/api/minioapi"
+	"github.com/minio-io/minio/pkg/api/webuiapi"
 	"github.com/minio-io/minio/pkg/httpserver"
 	mstorage "github.com/minio-io/minio/pkg/storage"
 	"github.com/minio-io/minio/pkg/storage/fs"
 	"github.com/minio-io/minio/pkg/storage/inmemory"
-	"github.com/minio-io/minio/pkg/webapi/minioapi"
 )
 
 type ServerConfig struct {
@@ -35,9 +36,17 @@ type ServerConfig struct {
 	Tls      bool
 	CertFile string
 	KeyFile  string
+	ApiType  interface{}
+}
+
+type MinioApi struct {
 	StorageType StorageType
 }
 
+type WebUIApi struct {
+	Websocket bool
+}
+
 type StorageType int
 
 const (
@@ -45,19 +54,20 @@ const (
 	FileStorage
 )
 
-func Start(config ServerConfig) {
+func getHttpChannels(configs []ServerConfig) (ctrlChans []chan<- string, statusChans []<-chan error) {
-	// maintain a list of input and output channels for communicating with services
-	var ctrlChans []chan<- string
-	var statusChans []<-chan error
-
 	// a pair of control channels, we use these primarily to add to the lists above
 	var ctrlChan chan<- string
 	var statusChan <-chan error
 
+	for _, config := range configs {
+		switch k := config.ApiType.(type) {
+		case MinioApi:
+			{
 				// configure web server
 				var storage mstorage.Storage
 				var httpConfig = httpserver.HttpServerConfig{}
 				httpConfig.Address = config.Address
+				httpConfig.Websocket = false
 				httpConfig.TLS = config.Tls
 
 				if config.CertFile != "" {
@@ -67,6 +77,40 @@ func Start(config ServerConfig) {
 					httpConfig.KeyFile = config.KeyFile
 				}
 
+				ctrlChans, statusChans, storage = getStorageChannels(k.StorageType)
+				// start minio api in a web server, pass storage driver into it
+				ctrlChan, statusChan, _ = httpserver.Start(minioapi.HttpHandler(storage), httpConfig)
+
+				ctrlChans = append(ctrlChans, ctrlChan)
+				statusChans = append(statusChans, statusChan)
+
+			}
+		case WebUIApi:
+			{
+				var httpConfig = httpserver.HttpServerConfig{}
+				httpConfig.Address = config.Address
+				httpConfig.TLS = config.Tls
+				httpConfig.CertFile = config.CertFile
+				httpConfig.KeyFile = config.KeyFile
+
+				httpConfig.Websocket = k.Websocket
+				ctrlChan, statusChan, _ = httpserver.Start(webuiapi.HttpHandler(), httpConfig)
+
+				ctrlChans = append(ctrlChans, ctrlChan)
+				statusChans = append(statusChans, statusChan)
+			}
+		default:
+			log.Fatal("Invalid api type")
+		}
+	}
+	return
+}
+
+func getStorageChannels(storageType StorageType) (ctrlChans []chan<- string, statusChans []<-chan error, storage mstorage.Storage) {
+	// a pair of control channels, we use these primarily to add to the lists above
+	var ctrlChan chan<- string
+	var statusChan <-chan error
+
 	// instantiate storage
 	// preconditions:
 	//    - storage type specified
@@ -76,13 +120,13 @@ func Start(config ServerConfig) {
 	//    - ctrlChans has channel to communicate to storage
 	//    - statusChans has channel for messages coming from storage
 	switch {
-	case config.StorageType == InMemoryStorage:
+	case storageType == InMemoryStorage:
 		{
 			ctrlChan, statusChan, storage = inmemory.Start()
 			ctrlChans = append(ctrlChans, ctrlChan)
 			statusChans = append(statusChans, statusChan)
 		}
-	case config.StorageType == FileStorage:
+	case storageType == FileStorage:
 		{
 			// TODO Replace this with a more configurable and robust version
 			currentUser, err := user.Current()
@@ -103,15 +147,14 @@ func Start(config ServerConfig) {
 	default: // should never happen
 		log.Fatal("No storage driver found")
 	}
+	return
+}
 
-	// start minio api in a web server, pass storage driver into it
+func Start(configs []ServerConfig) {
-	ctrlChan, statusChan, _ = httpserver.Start(minioapi.HttpHandler(storage), httpConfig)
-	ctrlChans = append(ctrlChans, ctrlChan)
-	statusChans = append(statusChans, statusChan)
-
 	// listen for critical errors
 	// TODO Handle critical errors appropriately when they arise
 	// reflected looping is necessary to remove dead channels from loop and not flood switch
+	_, statusChans := getHttpChannels(configs)
 	cases := createSelectCases(statusChans)
 	for len(cases) > 0 {
 		chosen, value, recvOk := reflect.Select(cases)