Fix issue #150: Modified the behaviour of few "tink hardware cli"

Following are the change in this commit
1. `tink hardware mac <mac address>` will provide only relevent information instead of complete hardware json
2. `tink hardware ip <ip address>` will provide only relevent information instead of complete hardware json
3. There will be a flag in both of the above clis (--details) which can be provided to get the complete hardware data
4. `tink hardware all` cli has been renamed to `tink hardware list`
5. The above cli will only list the relevent information (which is 'hardware-id', 'mac address', 'ip address' and 'hostname for now) instead of providing the complete json of all the hardware present in the database.

cmd/tink-cli/cmd/hardware/all.go

@@ -2,41 +2,46 @@ package hardware
 
 import (
 	"context"
-	"encoding/json"
-	"fmt"
 	"io"
 	"log"
+	"os"
 
+	"github.com/jedib0t/go-pretty/table"
 	"github.com/spf13/cobra"
 	"github.com/tinkerbell/tink/client"
 	"github.com/tinkerbell/tink/protos/hardware"
 )
 
-// allCmd represents the all command
-var allCmd = &cobra.Command{
-	Use:   "all",
-	Short: "get all known hardware for facility",
+// listCmd represents the all command
+var listCmd = &cobra.Command{
+	Use:   "list",
+	Short: "list all known hardware",
 	Run: func(cmd *cobra.Command, args []string) {
-		alls, err := client.HardwareClient.All(context.Background(), &hardware.Empty{})
+
+		t := table.NewWriter()
+		t.SetOutputMirror(os.Stdout)
+		t.AppendHeader(table.Row{"ID", "MAC Address", "IP address", "Hostname"})
+
+		list, err := client.HardwareClient.All(context.Background(), &hardware.Empty{})
 		if err != nil {
 			log.Fatal(err)
 		}
 
 		var hw *hardware.Hardware
 		err = nil
-		for hw, err = alls.Recv(); err == nil && hw != nil; hw, err = alls.Recv() {
-			b, err := json.Marshal(hw)
-			if err != nil {
-				log.Println(err)
+		for hw, err = list.Recv(); err == nil && hw != nil; hw, err = list.Recv() {
+			for _, iface := range hw.GetNetwork().GetInterfaces() {
+				t.AppendRow(table.Row{hw.Id, iface.Dhcp.Mac, iface.Dhcp.Ip.Address, iface.Dhcp.Hostname})
 			}
-			fmt.Println(string(b))
 		}
 		if err != nil && err != io.EOF {
 			log.Println(err)
+		} else {
+			t.Render()
 		}
 	},
 }
 
 func init() {
-	SubCommands = append(SubCommands, allCmd)
+	SubCommands = append(SubCommands, listCmd)
 }

cmd/tink-cli/cmd/hardware/commands.go

@@ -1,11 +1,16 @@
 package hardware
 
 import (
+	"encoding/json"
 	"fmt"
+	"log"
+	"os"
 
+	"github.com/jedib0t/go-pretty/table"
 	"github.com/pkg/errors"
 	uuid "github.com/satori/go.uuid"
 	"github.com/spf13/cobra"
+	"github.com/tinkerbell/tink/protos/hardware"
 )
 
 // SubCommands holds the sub commands for template command
@@ -23,3 +28,27 @@ func verifyUUIDs(args []string) error {
 	}
 	return nil
 }
+
+func printOutput(data bool, hw *hardware.Hardware, input string) {
+	t := table.NewWriter()
+	t.SetOutputMirror(os.Stdout)
+	t.AppendHeader(table.Row{"Field Name", "Value"})
+	if !data {
+		for _, iface := range hw.GetNetwork().GetInterfaces() {
+			if iface.Dhcp.Ip.Address == input || iface.Dhcp.Mac == input {
+				t.AppendRow(table.Row{"ID", hw.Id})
+				t.AppendRow(table.Row{"MAC Address", iface.Dhcp.Mac})
+				t.AppendRow(table.Row{"IP Address", iface.Dhcp.Ip.Address})
+				t.AppendRow(table.Row{"Hostname", iface.Dhcp.Hostname})
+			}
+		}
+		t.Render()
+	} else {
+		hwData, err := json.Marshal(hw)
+		if err != nil {
+			log.Println("Failed to marshal hardware data", err)
+		} else {
+			log.Println(string(hwData))
+		}
+	}
+}

cmd/tink-cli/cmd/hardware/ip.go

@@ -4,7 +4,6 @@ package hardware
 
 import (
 	"context"
-	"encoding/json"
 	"fmt"
 	"log"
 	"net"
@@ -14,6 +13,8 @@ import (
 	"github.com/tinkerbell/tink/protos/hardware"
 )
 
+var data bool
+
 // ipCmd represents the ip command
 var ipCmd = &cobra.Command{
 	Use:     "ip",
@@ -33,15 +34,20 @@ var ipCmd = &cobra.Command{
 			if err != nil {
 				log.Fatal(err)
 			}
-			b, err := json.Marshal(hw)
-			if err != nil {
-				log.Fatal(err)
+			if hw.GetId() == "" {
+				log.Fatal("IP address not found in the database ", ip)
 			}
-			fmt.Println(string(b))
+			printOutput(data, hw, ip)
 		}
 	},
 }
 
+func addIPFlags() {
+	flags := ipCmd.Flags()
+	flags.BoolVarP(&data, "details", "d", false, "Provide the complete hardware details in json format")
+}
+
 func init() {
+	addIPFlags()
 	SubCommands = append(SubCommands, ipCmd)
 }

cmd/tink-cli/cmd/hardware/mac.go

@@ -4,7 +4,6 @@ package hardware
 
 import (
 	"context"
-	"encoding/json"
 	"fmt"
 	"log"
 	"net"
@@ -33,15 +32,20 @@ var macCmd = &cobra.Command{
 			if err != nil {
 				log.Fatal(err)
 			}
-			b, err := json.Marshal(hw)
-			if err != nil {
-				log.Fatal(err)
+			if hw.GetId() == "" {
+				log.Fatal("MAC address not found in the database ", mac)
 			}
-			fmt.Println(string(b))
+			printOutput(data, hw, mac)
 		}
 	},
 }
 
+func addMacFlags() {
+	flags := macCmd.Flags()
+	flags.BoolVarP(&data, "details", "d", false, "Provide the complete hardware details in json format")
+}
+
 func init() {
+	addMacFlags()
 	SubCommands = append(SubCommands, macCmd)
 }

cmd/tink-cli/cmd/hardware/push.go

@@ -24,7 +24,7 @@ var (
 // pushCmd represents the push command
 var pushCmd = &cobra.Command{
 	Use:   "push",
-	Short: "push new hardware to tinkerbell",
+	Short: "push new hardware to tink",
 	Example: `cat /tmp/data.json | tink hardware push
 tink hardware push --file /tmp/data.json`,
 	PreRunE: func(c *cobra.Command, args []string) error {

metrics/metrics.go

@@ -81,6 +81,7 @@ func SetupMetrics(facility string, logger log.Logger) {
 		{"method": "Ingest", "op": ""},
 		{"method": "Watch", "op": "get"},
 		{"method": "Watch", "op": "push"},
+		{"method": "Delete", "op": "delete"},
 	}
 	initCounterLabels(CacheErrors, labels)
 	initGaugeLabels(CacheInFlight, labels)