[management] Add structs for new networks concept (#3006)

management/server/networks/network_router.go

@@ -0,0 +1,33 @@
+package networks
+
+import (
+	"errors"
+
+	"github.com/rs/xid"
+)
+
+type NetworkRouter struct {
+	ID         string `gorm:"index"`
+	NetworkID  string `gorm:"index"`
+	AccountID  string `gorm:"index"`
+	Peer       string
+	PeerGroups []string `gorm:"serializer:json"`
+	Masquerade bool
+	Metric     int
+}
+
+func NewNetworkRouter(accountID string, networkID string, peer string, peerGroups []string, masquerade bool, metric int) (*NetworkRouter, error) {
+	if peer != "" && len(peerGroups) > 0 {
+		return nil, errors.New("peer and peerGroups cannot be set at the same time")
+	}
+
+	return &NetworkRouter{
+		ID:         xid.New().String(),
+		AccountID:  accountID,
+		NetworkID:  networkID,
+		Peer:       peer,
+		PeerGroups: peerGroups,
+		Masquerade: masquerade,
+		Metric:     metric,
+	}, nil
+}