added new file button in config editor, dockerfile fix

src/go-proxy/args.go

@@ -0,0 +1,38 @@
+package main
+
+import (
+	"flag"
+
+	"github.com/sirupsen/logrus"
+)
+
+type Args struct {
+	Command string
+}
+
+const (
+	CommandStart  = ""
+	CommandVerify = "verify"
+	CommandReload = "reload"
+)
+
+var ValidCommands = []string{CommandStart, CommandVerify, CommandReload}
+
+func getArgs() Args {
+	var args Args
+	flag.Parse()
+	args.Command = flag.Arg(0)
+	if err := validateArgs(args.Command, ValidCommands); err != nil {
+		logrus.Fatal(err)
+	}
+	return args
+}
+
+func validateArgs[T comparable](arg T, validArgs []T) error {
+	for _, v := range validArgs {
+		if arg == v {
+			return nil
+		}
+	}
+	return NewNestedError("invalid argument").Subjectf("%v", arg)
+}