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dashboard.go
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dashboard.go
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// Copyright (C) 2019 Storj Labs, Inc.
// See LICENSE for copying information.
package main
import (
"context"
"fmt"
"os"
"os/exec"
"runtime"
"strings"
"text/tabwriter"
"time"
"github.com/fatih/color"
"github.com/spf13/cobra"
"go.uber.org/zap"
"storj.io/common/memory"
"storj.io/common/rpc"
"storj.io/private/process"
"storj.io/private/version"
"storj.io/storj/storagenode/internalpb"
)
const contactWindow = time.Hour * 2
type dashboardClient struct {
conn *rpc.Conn
}
func dialDashboardClient(ctx context.Context, address string) (*dashboardClient, error) {
conn, err := rpc.NewDefaultDialer(nil).DialAddressUnencrypted(ctx, address)
if err != nil {
return &dashboardClient{}, err
}
return &dashboardClient{conn: conn}, nil
}
func (dash *dashboardClient) dashboard(ctx context.Context) (*internalpb.DashboardResponse, error) {
return internalpb.NewDRPCPieceStoreInspectorClient(dash.conn).Dashboard(ctx, &internalpb.DashboardRequest{})
}
func (dash *dashboardClient) close() error {
return dash.conn.Close()
}
func cmdDashboard(cmd *cobra.Command, args []string) (err error) {
ctx, _ := process.Ctx(cmd)
ident, err := runCfg.Identity.Load()
if err != nil {
zap.L().Fatal("Failed to load identity.", zap.Error(err))
} else {
zap.L().Info("Identity loaded.", zap.Stringer("Node ID", ident.ID))
}
client, err := dialDashboardClient(ctx, dashboardCfg.Address)
if err != nil {
return err
}
defer func() {
if err := client.close(); err != nil {
zap.L().Debug("Closing dashboard client failed.", zap.Error(err))
}
}()
for {
data, err := client.dashboard(ctx)
if err != nil {
return err
}
if err := printDashboard(data); err != nil {
return err
}
// Refresh the dashboard every 3 seconds
time.Sleep(3 * time.Second)
}
}
func printDashboard(data *internalpb.DashboardResponse) error {
clearScreen()
var warnFlag bool
color.NoColor = !useColor
heading := color.New(color.FgGreen, color.Bold)
_, _ = heading.Printf("\nStorage Node Dashboard ( Node Version: %s )\n", version.Build.Version.String())
_, _ = heading.Printf("\n======================\n\n")
w := tabwriter.NewWriter(color.Output, 0, 0, 1, ' ', 0)
fmt.Fprintf(w, "ID\t%s\n", color.YellowString(data.NodeId.String()))
if data.LastPinged.IsZero() || time.Since(data.LastPinged) >= contactWindow {
fmt.Fprintf(w, "Status\t%s\n", color.RedString("OFFLINE"))
} else {
fmt.Fprintf(w, "Status\t%s\n", color.GreenString("ONLINE"))
}
uptime, err := time.ParseDuration(data.GetUptime())
if err == nil {
fmt.Fprintf(w, "Uptime\t%s\n", color.YellowString(uptime.Truncate(time.Second).String()))
}
if err = w.Flush(); err != nil {
return err
}
stats := data.GetStats()
if stats != nil {
usedBandwidth := color.WhiteString(memory.Size(stats.GetUsedBandwidth()).Base10String())
availableSpace := color.WhiteString(memory.Size(stats.GetAvailableSpace()).Base10String())
usedSpace := color.WhiteString(memory.Size(stats.GetUsedSpace()).Base10String())
usedEgress := color.WhiteString(memory.Size(stats.GetUsedEgress()).Base10String())
usedIngress := color.WhiteString(memory.Size(stats.GetUsedIngress()).Base10String())
w = tabwriter.NewWriter(color.Output, 0, 0, 5, ' ', tabwriter.AlignRight)
fmt.Fprintf(w, "\n\t%s\t%s\t%s\t%s\t\n", color.GreenString("Available"), color.GreenString("Used"), color.GreenString("Egress"), color.GreenString("Ingress"))
fmt.Fprintf(w, "Bandwidth\t%s\t%s\t%s\t%s\t (since %s 1)\n", color.WhiteString("N/A"), usedBandwidth, usedEgress, usedIngress, time.Now().Format("Jan"))
fmt.Fprintf(w, "Disk\t%s\t%s\t\n", availableSpace, usedSpace)
if err = w.Flush(); err != nil {
return err
}
} else {
color.Yellow("Loading...\n")
}
w = tabwriter.NewWriter(color.Output, 0, 0, 1, ' ', 0)
// TODO: Get addresses from server data
fmt.Fprintf(w, "Internal\t%s\n", color.WhiteString(dashboardCfg.Address))
fmt.Fprintf(w, "External\t%s\n", color.WhiteString(data.GetExternalAddress()))
// Disabling the Link to the Dashboard as its not working yet
// fmt.Fprintf(w, "Dashboard\t%s\n", color.WhiteString(data.GetDashboardAddress()))
if err = w.Flush(); err != nil {
return err
}
if warnFlag {
fmt.Fprintf(w, "\nWARNING!!!!! %s\n", color.WhiteString("Increase your bandwidth"))
}
return nil
}
// clearScreen clears the screen so it can be redrawn.
func clearScreen() {
switch runtime.GOOS {
case "linux", "darwin":
cmd := exec.Command("clear")
cmd.Stdout = os.Stdout
_ = cmd.Run()
case "windows":
cmd := exec.Command("cmd", "/c", "cls")
cmd.Stdout = os.Stdout
_ = cmd.Run()
default:
fmt.Print(strings.Repeat("\n", 100))
}
}