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minio/server-main.go

305 lines
8.5 KiB

/*
* 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"
"time"
"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}} PATH
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% with auto expiration set to 1h
$ minio {{.Name}} min-free-disk 15% expiry 1h /home/shared/Documents
`,
}
// configureAPIServer configure a new server instance
func configureAPIServer(conf serverConfig) (*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)
}
}
host, port, err := net.SplitHostPort(conf.Address)
if err != nil {
return nil, probe.NewError(err)
}
var hosts []string
switch {
case host != "":
hosts = append(hosts, host)
default:
addrs, err := net.InterfaceAddrs()
if err != nil {
return nil, probe.NewError(err)
}
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)
}
}
}
}
Println("Starting minio server:")
for _, host := range hosts {
if conf.TLS {
Printf("Listening on https://%s:%s\n", host, port)
} else {
Printf("Listening on http://%s:%s\n", host, port)
}
}
return apiServer, nil
}
// startServer starts an s3 compatible cloud storage server
func startServer(conf serverConfig) *probe.Error {
apiServer, err := configureAPIServer(conf)
if err != nil {
return err.Trace()
}
rateLimit := conf.RateLimit
if err := minhttp.ListenAndServeLimited(rateLimit, apiServer); err != nil {
return err.Trace()
}
return nil
}
// 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, err := strconv.ParseInt(s, 10, bitSize)
if err != nil {
return 0, probe.NewError(err)
}
return p, nil
}
p, err := strconv.ParseInt(s[:i], 10, bitSize)
if err != nil {
return 0, probe.NewError(err)
}
return p, nil
}
func getAuth() (*AuthConfig, *probe.Error) {
if err := createAuthConfigPath(); err != nil {
return nil, err.Trace()
}
config, err := loadAuthConfig()
if err != nil {
if os.IsNotExist(err.ToGoError()) {
// Initialize new config, since config file doesn't exist yet
config := &AuthConfig{}
config.Version = "1"
config.AccessKeyID = string(mustGenerateAccessKeyID())
config.SecretAccessKey = string(mustGenerateSecretAccessKey())
if err := saveAuthConfig(config); err != nil {
return nil, err.Trace()
}
return config, nil
}
return nil, err.Trace()
}
return config, nil
}
type accessKeys struct {
*AuthConfig
}
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.AccessKeyID) + " " + magenta("SecretKey: ") + white(a.SecretAccessKey))
}
// JSON - json formatted output
func (a accessKeys) JSON() string {
b, err := json.Marshal(a)
errorIf(probe.NewError(err), "Unable to marshal json", nil)
return string(b)
}
// fetchAuth first time authorization
func fetchAuth() *probe.Error {
conf, err := getAuth()
if err != nil {
return err.Trace()
}
if conf != nil {
if globalJSONFlag {
Println(accessKeys{conf}.JSON())
} else {
Println()
Println(accessKeys{conf})
}
}
if !globalJSONFlag {
Println("\nTo configure Minio Client.")
if runtime.GOOS == "windows" {
Println("\n\tDownload https://dl.minio.io:9000/updates/2015/Oct/" + runtime.GOOS + "-" + runtime.GOARCH + "/mc.exe")
Println("\t$ mc.exe config host add localhost:9000 " + conf.AccessKeyID + " " + conf.SecretAccessKey)
Println("\t$ mc.exe mb localhost/photobucket")
Println("\t$ mc.exe cp C:\\Photos... localhost/photobucket")
} else {
Println("\n\t$ wget https://dl.minio.io:9000/updates/2015/Oct/" + runtime.GOOS + "-" + runtime.GOARCH + "/mc")
Println("\t$ chmod 755 mc")
Println("\t$ ./mc config host add localhost:9000 " + conf.AccessKeyID + " " + conf.SecretAccessKey)
Println("\t$ ./mc mb localhost/photobucket")
Println("\t$ ./mc cp ~/Photos... localhost/photobucket")
}
Println()
}
return 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)
perr := fetchAuth()
fatalIf(perr.Trace(), "Failed to generate keys 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
minFreeDiskSet := false
// Default
minFreeDisk = 10
var expiration time.Duration
expirationSet := false
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()
var err *probe.Error
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 "expiry":
if expirationSet {
fatalIf(probe.NewError(errInvalidArgument), "Expiration should be set only once.", nil)
}
args = args.Tail()
var err error
expiration, err = time.ParseDuration(args.First())
fatalIf(probe.NewError(err), "Invalid expiration time "+args.First()+" passed.", nil)
args = args.Tail()
expirationSet = 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 != "")
apiServerConfig := serverConfig{
Address: c.GlobalString("address"),
AccessLog: c.GlobalBool("enable-accesslog"),
Anonymous: c.GlobalBool("anonymous"),
Path: path,
MinFreeDisk: minFreeDisk,
Expiry: expiration,
TLS: tls,
CertFile: certFile,
KeyFile: keyFile,
RateLimit: c.GlobalInt("ratelimit"),
}
perr = startServer(apiServerConfig)
errorIf(perr.Trace(), "Failed to start the minio server.", nil)
}