added IpCIDR entry for the nodes

internal/pkg/node/datastructure.go

@@ -44,6 +44,8 @@ type NetDevs struct {
 	Default bool   `yaml:"default"`
 	Hwaddr  string
 	Ipaddr  string
+	IpCIDR  string
+	Prefix  string
 	Netmask string
 	Gateway string `yaml:"gateway,omitempty"`
 }
@@ -91,6 +93,8 @@ type NetDevEntry struct {
 	Default Entry `yaml:"default"`
 	Hwaddr  Entry
 	Ipaddr  Entry
+	IpCIDR  Entry
+	Prefix  Entry
 	Netmask Entry
 	Gateway Entry `yaml:"gateway,omitempty"`
 }

internal/pkg/overlay/overlay.go

@@ -3,11 +3,13 @@ package overlay
 import (
 	"fmt"
 	"io/ioutil"
+  "net"
 	"os"
 	"os/exec"
 	"path"
 	"path/filepath"
 	"regexp"
+  "strconv"
 	"strings"
 	"text/template"
 
@@ -160,6 +162,13 @@ func buildOverlay(nodeList []node.NodeInfo, overlayType string) error {
 			t.NetDevs[devname].Gateway = netdev.Gateway.Get()
 			t.NetDevs[devname].Type = netdev.Type.Get()
 			t.NetDevs[devname].Default = netdev.Default.GetB()
+      mask := net.IPMask(net.ParseIP(netdev.Netmask.Get()).To4())
+      ipaddr := net.ParseIP(netdev.Ipaddr.Get()).To4()
+      netaddr := net.IPNet{IP: ipaddr,Mask: mask}
+      netPrefix, _ := net.IPMask(net.ParseIP(netdev.Netmask.Get()).To4()).Size()
+      t.NetDevs[devname].Prefix = strconv.Itoa(netPrefix)
+      t.NetDevs[devname].IpCIDR = netaddr.String()
+
 		}
 		for keyname, key := range n.Keys {
 			t.Keys[keyname] = key.Get()