minio/cmd/server-startup-msg.go

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// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package cmd
import (
"fmt"
"net"
"net/url"
"strings"
"github.com/minio/madmin-go/v3"
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"github.com/minio/minio/internal/color"
"github.com/minio/minio/internal/logger"
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xnet "github.com/minio/pkg/v2/net"
)
// generates format string depending on the string length and padding.
func getFormatStr(strLen int, padding int) string {
formatStr := fmt.Sprintf("%ds", strLen+padding)
return "%" + formatStr
}
// Prints the formatted startup message.
func printStartupMessage(apiEndpoints []string, err error) {
logger.Info(color.Bold("MinIO Object Storage Server"))
if err != nil {
if globalConsoleSys != nil {
globalConsoleSys.Send(GlobalContext, fmt.Sprintf("Server startup failed with '%v', some features may be missing", err))
}
}
if !globalSubnetConfig.Registered() {
var builder strings.Builder
startupBanner(&builder)
logger.Info(builder.String())
}
strippedAPIEndpoints := stripStandardPorts(apiEndpoints, globalMinioHost)
// Object layer is initialized then print StorageInfo.
objAPI := newObjectLayerFn()
if objAPI != nil {
printStorageInfo(objAPI.StorageInfo(GlobalContext))
}
// Prints credential, region and browser access.
printServerCommonMsg(strippedAPIEndpoints)
// Prints `mc` cli configuration message chooses
// first endpoint as default.
printCLIAccessMsg(strippedAPIEndpoints[0], "myminio")
// Prints documentation message.
printObjectAPIMsg()
}
// Returns true if input is IPv6
func isIPv6(host string) bool {
h, _, err := net.SplitHostPort(host)
if err != nil {
h = host
}
ip := net.ParseIP(h)
return ip.To16() != nil && ip.To4() == nil
}
// strip api endpoints list with standard ports such as
// port "80" and "443" before displaying on the startup
// banner. Returns a new list of API endpoints.
func stripStandardPorts(apiEndpoints []string, host string) (newAPIEndpoints []string) {
if len(apiEndpoints) == 1 {
return apiEndpoints
}
newAPIEndpoints = make([]string, len(apiEndpoints))
// Check all API endpoints for standard ports and strip them.
for i, apiEndpoint := range apiEndpoints {
_, err := xnet.ParseHTTPURL(apiEndpoint)
if err != nil {
continue
}
u, err := url.Parse(apiEndpoint)
if err != nil {
continue
}
if host == "" && isIPv6(u.Hostname()) {
// Skip all IPv6 endpoints
continue
}
if u.Port() == "80" && u.Scheme == "http" || u.Port() == "443" && u.Scheme == "https" {
u.Host = u.Hostname()
}
newAPIEndpoints[i] = u.String()
}
return newAPIEndpoints
}
// Prints common server startup message. Prints credential, region and browser access.
func printServerCommonMsg(apiEndpoints []string) {
// Get saved credentials.
cred := globalActiveCred
// Get saved region.
region := globalSite.Region
apiEndpointStr := strings.Join(apiEndpoints, " ")
// Colorize the message and print.
logger.Info(color.Blue("S3-API: ") + color.Bold(fmt.Sprintf("%s ", apiEndpointStr)))
if color.IsTerminal() && (!globalServerCtxt.Anonymous && !globalServerCtxt.JSON) {
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logger.Info(color.Blue("RootUser: ") + color.Bold("%s ", cred.AccessKey))
logger.Info(color.Blue("RootPass: ") + color.Bold("%s \n", cred.SecretKey))
if region != "" {
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logger.Info(color.Blue("Region: ") + color.Bold("%s", fmt.Sprintf(getFormatStr(len(region), 2), region)))
}
}
if globalBrowserEnabled {
consoleEndpointStr := strings.Join(stripStandardPorts(getConsoleEndpoints(), globalMinioConsoleHost), " ")
logger.Info(color.Blue("Console: ") + color.Bold(fmt.Sprintf("%s ", consoleEndpointStr)))
if color.IsTerminal() && (!globalServerCtxt.Anonymous && !globalServerCtxt.JSON) {
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logger.Info(color.Blue("RootUser: ") + color.Bold("%s ", cred.AccessKey))
logger.Info(color.Blue("RootPass: ") + color.Bold("%s ", cred.SecretKey))
}
}
printEventNotifiers()
printLambdaTargets()
}
// Prints startup message for Object API access, prints link to our SDK documentation.
func printObjectAPIMsg() {
logger.Info(color.Blue("\nDocumentation: ") + "https://min.io/docs/minio/linux/index.html")
}
func printLambdaTargets() {
if globalLambdaTargetList == nil || globalLambdaTargetList.Empty() {
return
}
arnMsg := color.Blue("Object Lambda ARNs: ")
for _, arn := range globalLambdaTargetList.List(globalSite.Region) {
arnMsg += color.Bold(fmt.Sprintf("%s ", arn))
}
logger.Info(arnMsg + "\n")
}
// Prints bucket notification configurations.
func printEventNotifiers() {
if globalNotificationSys == nil {
return
}
arns := globalEventNotifier.GetARNList(true)
if len(arns) == 0 {
return
}
arnMsg := color.Blue("SQS ARNs: ")
for _, arn := range arns {
arnMsg += color.Bold(fmt.Sprintf("%s ", arn))
}
logger.Info(arnMsg + "\n")
}
// Prints startup message for command line access. Prints link to our documentation
// and custom platform specific message.
func printCLIAccessMsg(endPoint string, alias string) {
// Get saved credentials.
cred := globalActiveCred
const mcQuickStartGuide = "https://min.io/docs/minio/linux/reference/minio-mc.html#quickstart"
// Configure 'mc', following block prints platform specific information for minio client.
if color.IsTerminal() && !globalServerCtxt.Anonymous {
logger.Info(color.Blue("\nCommand-line: ") + mcQuickStartGuide)
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mcMessage := fmt.Sprintf("$ mc alias set '%s' '%s' '%s' '%s'", alias,
endPoint, cred.AccessKey, cred.SecretKey)
logger.Info(fmt.Sprintf(getFormatStr(len(mcMessage), 3), mcMessage))
}
}
// Get formatted disk/storage info message.
func getStorageInfoMsg(storageInfo StorageInfo) string {
var msg string
var mcMessage string
onlineDisks, offlineDisks := getOnlineOfflineDisksStats(storageInfo.Disks)
if storageInfo.Backend.Type == madmin.Erasure {
if offlineDisks.Sum() > 0 {
mcMessage = "Use `mc admin info` to look for latest server/drive info\n"
}
diskInfo := fmt.Sprintf(" %d Online, %d Offline. ", onlineDisks.Sum(), offlineDisks.Sum())
msg += color.Blue("Status:") + fmt.Sprintf(getFormatStr(len(diskInfo), 8), diskInfo)
if len(mcMessage) > 0 {
msg = fmt.Sprintf("%s %s", mcMessage, msg)
}
}
return msg
}
// Prints startup message of storage capacity and erasure information.
func printStorageInfo(storageInfo StorageInfo) {
if msg := getStorageInfoMsg(storageInfo); msg != "" {
logger.Info(msg)
}
}