refactor join, fix network add; db retry connect; fix port issue; sqlite default

netclient/functions/joinutils.go

@@ -0,0 +1,62 @@
+package functions
+
+import (
+	"github.com/gravitl/netmaker/models"
+	"net"
+)
+
+
+func getLocalIP(node models.Node) string{
+
+	var local string
+
+	ifaces, err := net.Interfaces()
+	if err != nil {
+		return local
+	}
+	_, localrange, err := net.ParseCIDR(node.LocalRange)
+	if err != nil {
+		return local
+	}
+
+	found := false
+	for _, i := range ifaces {
+		if i.Flags&net.FlagUp == 0 {
+			continue // interface down
+		}
+		if i.Flags&net.FlagLoopback != 0 {
+			continue // loopback interface
+		}
+		addrs, err := i.Addrs()
+		if err != nil {
+			return local
+		}
+		for _, addr := range addrs {
+			var ip net.IP
+			switch v := addr.(type) {
+			case *net.IPNet:
+				if !found {
+					ip = v.IP
+					local = ip.String()
+					if node.IsLocal == "yes" {
+						found = localrange.Contains(ip)
+					} else {
+						found = true
+					}
+				}
+			case *net.IPAddr:
+				if !found {
+					ip = v.IP
+					local = ip.String()
+					if node.IsLocal == "yes" {
+						found = localrange.Contains(ip)
+
+					} else {
+						found = true
+					}
+				}
+			}
+		}
+	}
+	return local
+}