fea:support nexthop group for routing ha (#57)

pkg/config/subnet.go

@@ -18,6 +18,10 @@ type MultiPath struct {
 	Weight  int    `json:"weight"`
 }
 
+func (mp *MultiPath) CompareEqual(b MultiPath) bool {
+	return mp.NextHop == b.NextHop
+}
+
 type PrefixRoute struct {
 	File      string      `json:"-"`
 	Network   string      `json:"network,omitempty"`
@@ -26,6 +30,7 @@ type PrefixRoute struct {
 	MultiPath []MultiPath `json:"multipath,omitempty"`
 	Metric    int         `json:"metric"`
 	Mode      string      `json:"forward,omitempty"` // route or snat
+	NextGroup string      `json:"nextgroup,omitempty"`
 }
 
 func (r *PrefixRoute) String() string {
@@ -55,6 +60,7 @@ func (r *PrefixRoute) CorrectRoute(nexthop string) {
 	if r.Mode == "" {
 		r.Mode = "snat"
 	}
+
 }
 
 func CorrectRoutes(routes []PrefixRoute, nexthop string) {