Extclient NET-63x (#2286)

* model changes

* additional fields for extclient create

* add DNS to extclient config

* extclient name checks

* update extclient

* nmctl extclient

* final tweaks

* review comments

* add extclientdns to node on ingress creation

* fix to add ingress dns to api (#2296)

---------

Co-authored-by: Aceix <aceixsmartX@gmail.com>

controllers/regex.go

@@ -6,11 +6,23 @@ import (
 )
 
 var (
-	errInvalidExtClientPubKey = errors.New("incorrect ext client public key")
-	errInvalidExtClientID     = errors.New("ext client ID must be alphanumderic and/or dashes")
+	errInvalidExtClientPubKey  = errors.New("incorrect ext client public key")
+	errInvalidExtClientID      = errors.New("ext client ID must be alphanumderic and/or dashes and less that 15 chars")
+	errInvalidExtClientExtraIP = errors.New("ext client extra ip must be a valid cidr")
+	errInvalidExtClientDNS     = errors.New("ext client dns must be a valid ip address")
 )
 
 // allow only dashes and alphaneumeric for ext client and node names
 func validName(name string) bool {
-	return regexp.MustCompile("^[a-zA-Z0-9-]+$").MatchString(name)
+	reg, err := regexp.Compile("^[a-zA-Z0-9-]+$")
+	if err != nil {
+		return false
+	}
+	if !reg.MatchString(name) {
+		return false
+	}
+	if len(name) > 15 {
+		return false
+	}
+	return true
 }