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minio/main.go

205 lines
5.1 KiB

/*
* Minimalist Object 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 (
"fmt"
"os"
"os/user"
"runtime"
"strconv"
"strings"
"time"
"github.com/minio-io/cli"
"github.com/minio-io/minio/pkg/iodine"
"github.com/minio-io/minio/pkg/server"
"github.com/minio-io/minio/pkg/utils/log"
)
var globalDebugFlag = false
var flags = []cli.Flag{
cli.StringFlag{
Name: "domain,d",
Value: "",
Usage: "domain used for routing incoming API requests",
},
cli.StringFlag{
Name: "api-address,a",
Value: ":9000",
Usage: "address for incoming API requests",
},
cli.StringFlag{
Name: "web-address,w",
Value: ":9001",
Usage: "address for incoming Management UI requests",
},
cli.StringFlag{
Name: "cert,c",
Hide: true,
Value: "",
Usage: "cert.pem",
},
cli.StringFlag{
Name: "key,k",
Hide: true,
Value: "",
Usage: "key.pem",
},
cli.StringFlag{
Name: "driver-type,t",
Value: "donut",
Usage: "valid entries: file,inmemory,donut",
},
cli.BoolFlag{
Name: "debug",
Usage: "print debug information",
},
}
func init() {
// Check for the environment early on and gracefuly report.
_, err := user.Current()
if err != nil {
log.Fatalf("minio: Unable to obtain user's home directory. \nError: %s\n", err)
}
}
func getDriverType(input string) server.DriverType {
switch {
case input == "file":
return server.File
case input == "memory":
return server.Memory
case input == "donut":
return server.Donut
case input == "":
return server.Donut
default:
{
log.Fatal("Unknown driver type: '", input, "', Please specify a valid driver.")
return -1 // should never reach here
}
}
}
func runCmd(c *cli.Context) {
driverTypeStr := c.String("driver-type")
domain := c.String("domain")
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 != "")
driverType := getDriverType(driverTypeStr)
var serverConfigs []server.Config
apiServerConfig := server.Config{
Domain: domain,
Address: apiaddress,
TLS: tls,
CertFile: certFile,
KeyFile: keyFile,
APIType: server.MinioAPI{
DriverType: driverType,
},
}
webUIServerConfig := server.Config{
Domain: domain,
Address: webaddress,
TLS: false,
CertFile: "",
KeyFile: "",
APIType: server.Web{
Websocket: false,
},
}
serverConfigs = append(serverConfigs, apiServerConfig)
serverConfigs = append(serverConfigs, webUIServerConfig)
server.Start(serverConfigs)
}
// Convert bytes to human readable string. Like a 2 MB, 64.2 KB, 52 B
func formatBytes(i int64) (result string) {
switch {
case i > (1024 * 1024 * 1024 * 1024):
result = fmt.Sprintf("%.02f TB", float64(i)/1024/1024/1024/1024)
case i > (1024 * 1024 * 1024):
result = fmt.Sprintf("%.02f GB", float64(i)/1024/1024/1024)
case i > (1024 * 1024):
result = fmt.Sprintf("%.02f MB", float64(i)/1024/1024)
case i > 1024:
result = fmt.Sprintf("%.02f KB", float64(i)/1024)
default:
result = fmt.Sprintf("%d B", i)
}
result = strings.Trim(result, " ")
return
}
// Tries to get os/arch/platform specific information
// Returns a map of current os/arch/platform/memstats
func getSystemData() map[string]string {
host, err := os.Hostname()
if err != nil {
host = ""
}
memstats := &runtime.MemStats{}
runtime.ReadMemStats(memstats)
mem := fmt.Sprintf("Used: %s | Allocated: %s | Used-Heap: %s | Allocated-Heap: %s",
formatBytes(int64(memstats.Alloc)),
formatBytes(int64(memstats.TotalAlloc)),
formatBytes(int64(memstats.HeapAlloc)),
formatBytes(int64(memstats.HeapSys)))
platform := fmt.Sprintf("Host: %s | OS: %s | Arch: %s",
host,
runtime.GOOS,
runtime.GOARCH)
goruntime := fmt.Sprintf("Version: %s | CPUs: %s", runtime.Version(), strconv.Itoa(runtime.NumCPU()))
return map[string]string{
"PLATFORM": platform,
"RUNTIME": goruntime,
"MEM": mem,
}
}
func main() {
// set up iodine
iodine.SetGlobalState("minio.git", minioGitCommitHash)
iodine.SetGlobalState("minio.starttime", time.Now().Format(time.RFC3339))
// set up app
app := cli.NewApp()
app.Name = "minio"
app.Version = minioGitCommitHash
app.Author = "Minio.io"
app.Usage = "Minimalist Object Storage"
app.EnableBashCompletion = true
app.Flags = flags
app.Action = runCmd
app.Before = func(c *cli.Context) error {
globalDebugFlag = c.GlobalBool("debug")
if globalDebugFlag {
app.ExtraInfo = getSystemData()
}
return nil
}
app.RunAndExitOnError()
}