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_test.go

@@ -0,0 +1,51 @@
+package controller
+
+import "testing"
+
+// TestValidName tests the validName function
+func TestValidName(t *testing.T) {
+	type args struct {
+		Name string
+	}
+	tests := []struct {
+		Name string
+		Args args
+		Want bool
+	}{
+		{
+			Name: "validName",
+			Args: args{
+				Name: "TestvalidName",
+			},
+			Want: true,
+		},
+		{
+			Name: "invalidName",
+			Args: args{
+				Name: "Test*Name",
+			},
+			Want: false,
+		},
+		{
+			Name: "nametoolong",
+			Args: args{
+				Name: "TestvalidNameTestvalidName",
+			},
+			Want: false,
+		},
+		{
+			Name: "maxlength",
+			Args: args{
+				Name: "123456789012345",
+			},
+			Want: true,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.Name, func(t *testing.T) {
+			if got := validName(tt.Args.Name); got != tt.Want {
+				t.Errorf("validName() = %v, want %v", got, tt.Want)
+			}
+		})
+	}
+}