276 lines
8.1 KiB
Go
276 lines
8.1 KiB
Go
// Copyright (c) 2015-2021 MinIO, Inc.
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//
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// This file is part of MinIO Object Storage stack
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package cmd
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import (
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"errors"
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"fmt"
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"reflect"
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"strconv"
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"strings"
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"time"
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humanize "github.com/dustin/go-humanize"
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"github.com/dustin/go-humanize/english"
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"github.com/fatih/color"
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"github.com/minio/cli"
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"github.com/minio/madmin-go"
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json "github.com/minio/colorjson"
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"github.com/minio/mc/pkg/probe"
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"github.com/minio/minio/pkg/console"
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)
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var adminInfoCmd = cli.Command{
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Name: "info",
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Usage: "display MinIO server information",
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Action: mainAdminInfo,
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OnUsageError: onUsageError,
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Before: setGlobalsFromContext,
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Flags: globalFlags,
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CustomHelpTemplate: `NAME:
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{{.HelpName}} - {{.Usage}}
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USAGE:
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{{.HelpName}} TARGET
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FLAGS:
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{{range .VisibleFlags}}{{.}}
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{{end}}
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EXAMPLES:
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1. Get server information of the 'play' MinIO server.
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{{.Prompt}} {{.HelpName}} play/
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`,
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}
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// Wrap "Info" message together with fields "Status" and "Error"
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type clusterStruct struct {
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Status string `json:"status"`
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Error string `json:"error,omitempty"`
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Info madmin.InfoMessage `json:"info,omitempty"`
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}
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// String provides colorized info messages depending on the type of a server
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// FS server non-FS server
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// ============================== ===================================
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// ● <ip>:<port> ● <ip>:<port>
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// Uptime: xxx Uptime: xxx
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// Version: xxx Version: xxx
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// Network: X/Y OK Network: X/Y OK
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//
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// U Used, B Buckets, O Objects Drives: N/N OK
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//
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// U Used, B Buckets, O Objects
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// N drives online, K drives offline
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//
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func (u clusterStruct) String() (msg string) {
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// Check cluster level "Status" field for error
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if u.Status == "error" {
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fatal(probe.NewError(errors.New(u.Error)), "Unable to get service status")
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}
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// If nothing has been collected, error out
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if u.Info.Servers == nil {
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fatal(probe.NewError(errors.New("Unable to get service status")), "")
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}
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// Initialization
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var totalOnlineDisksCluster int
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var totalOfflineDisksCluster int
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// Color palette initialization
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console.SetColor("Info", color.New(color.FgGreen, color.Bold))
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console.SetColor("InfoFail", color.New(color.FgRed, color.Bold))
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console.SetColor("InfoWarning", color.New(color.FgYellow, color.Bold))
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// MinIO server type default
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backendType := "Unknown"
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// Set the type of MinIO server ("FS", "Erasure", "Unknown")
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v := reflect.ValueOf(u.Info.Backend)
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if v.Kind() == reflect.Map {
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for _, key := range v.MapKeys() {
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val := v.MapIndex(key)
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switch t := val.Interface().(type) {
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case string:
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backendType = t
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}
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}
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}
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coloredDot := console.Colorize("Info", dot)
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if madmin.ItemState(u.Info.Mode) == madmin.ItemInitializing {
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coloredDot = console.Colorize("InfoWarning", dot)
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}
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// Loop through each server and put together info for each one
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for _, srv := range u.Info.Servers {
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// Check if MinIO server is offline ("Mode" field),
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// If offline, error out
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if srv.State == "offline" {
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// "PrintB" is color blue in console library package
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msg += fmt.Sprintf("%s %s\n", console.Colorize("InfoFail", dot), console.Colorize("PrintB", srv.Endpoint))
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msg += fmt.Sprintf(" Uptime: %s\n", console.Colorize("InfoFail", "offline"))
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if backendType != "FS" {
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// Info about drives on a server, only available for non-FS types
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var OffDisks int
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var OnDisks int
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var dispNoOfDisks string
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for _, disk := range srv.Disks {
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switch disk.State {
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case madmin.DriveStateOk:
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fallthrough
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case madmin.DriveStateUnformatted:
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OnDisks++
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default:
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OffDisks++
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}
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}
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totalDisksPerServer := OnDisks + OffDisks
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totalOnlineDisksCluster += OnDisks
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totalOfflineDisksCluster += OffDisks
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dispNoOfDisks = strconv.Itoa(OnDisks) + "/" + strconv.Itoa(totalDisksPerServer)
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msg += fmt.Sprintf(" Drives: %s %s\n", dispNoOfDisks, console.Colorize("InfoFail", "OK "))
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}
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msg += "\n"
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// Continue to the next server
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continue
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}
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// Print server title
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msg += fmt.Sprintf("%s %s\n", coloredDot, console.Colorize("PrintB", srv.Endpoint))
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// Uptime
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msg += fmt.Sprintf(" Uptime: %s\n", console.Colorize("Info",
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humanize.RelTime(time.Now(), time.Now().Add(time.Duration(srv.Uptime)*time.Second), "", "")))
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// Version
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version := srv.Version
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if srv.Version == "DEVELOPMENT.GOGET" {
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version = "<development>"
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}
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msg += fmt.Sprintf(" Version: %s\n", version)
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// Network info, only available for non-FS types
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var connectionAlive int
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totalNodes := strconv.Itoa(len(srv.Network))
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if srv.Network != nil {
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for _, v := range srv.Network {
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if v == "online" {
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connectionAlive++
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}
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}
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displayNwInfo := strconv.Itoa(connectionAlive) + "/" + totalNodes
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msg += fmt.Sprintf(" Network: %s %s\n", displayNwInfo, console.Colorize("Info", "OK "))
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}
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if backendType != "FS" {
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// Info about drives on a server, only available for non-FS types
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var OffDisks int
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var OnDisks int
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var dispNoOfDisks string
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for _, disk := range srv.Disks {
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switch disk.State {
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case madmin.DriveStateOk:
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fallthrough
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case madmin.DriveStateUnformatted:
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OnDisks++
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default:
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OffDisks++
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}
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}
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totalDisksPerServer := OnDisks + OffDisks
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totalOnlineDisksCluster += OnDisks
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totalOfflineDisksCluster += OffDisks
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dispNoOfDisks = strconv.Itoa(OnDisks) + "/" + strconv.Itoa(totalDisksPerServer)
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msg += fmt.Sprintf(" Drives: %s %s\n", dispNoOfDisks, console.Colorize("Info", "OK "))
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}
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msg += "\n"
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}
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// Summary on used space, total no of buckets and
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// total no of objects at the Cluster level
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usedTotal := humanize.IBytes(uint64(u.Info.Usage.Size))
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if u.Info.Buckets.Count > 0 {
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msg += fmt.Sprintf("%s Used, %s, %s\n", usedTotal,
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english.Plural(int(u.Info.Buckets.Count), "Bucket", ""),
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english.Plural(int(u.Info.Objects.Count), "Object", ""))
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}
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if backendType != "FS" {
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// Summary on total no of online and total
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// number of offline disks at the Cluster level
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msg += fmt.Sprintf("%s online, %s offline\n",
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english.Plural(totalOnlineDisksCluster, "drive", ""),
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english.Plural(totalOfflineDisksCluster, "drive", ""))
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}
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// Remove the last new line if any
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// since this is a String() function
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msg = strings.TrimSuffix(msg, "\n")
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return
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}
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// JSON jsonifies service status message.
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func (u clusterStruct) JSON() string {
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statusJSONBytes, e := json.MarshalIndent(u, "", " ")
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fatalIf(probe.NewError(e), "Unable to marshal into JSON.")
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return string(statusJSONBytes)
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}
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// checkAdminInfoSyntax - validate arguments passed by a user
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func checkAdminInfoSyntax(ctx *cli.Context) {
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if len(ctx.Args()) == 0 || len(ctx.Args()) > 1 {
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cli.ShowCommandHelpAndExit(ctx, "info", 1) // last argument is exit code
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}
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}
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func mainAdminInfo(ctx *cli.Context) error {
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checkAdminInfoSyntax(ctx)
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// Get the alias parameter from cli
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args := ctx.Args()
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aliasedURL := args.Get(0)
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// Create a new MinIO Admin Client
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client, err := newAdminClient(aliasedURL)
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fatalIf(err, "Unable to initialize admin connection.")
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var clusterInfo clusterStruct
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// Fetch info of all servers (cluster or single server)
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admInfo, e := client.ServerInfo(globalContext)
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if e != nil {
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clusterInfo.Status = "error"
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clusterInfo.Error = e.Error()
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} else {
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clusterInfo.Status = "success"
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clusterInfo.Error = ""
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}
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clusterInfo.Info = admInfo
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printMsg(clusterStruct(clusterInfo))
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return nil
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}
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