Add command for generating secrets

main.go

@@ -1,18 +1,41 @@
 package main
 
 import (
-	"fmt"
 	"math/rand"
-	"os"
 	"time"
+
+	"github.com/alecthomas/kong"
 )
 
 var version = "dev" // has to be set by ldflags
 
+type CLI struct {
+	GenerateSecret struct {
+		HostName string `arg optional help:"Hostname to use for domain fronting. Default is '${domain_front}'." name:"hostname" default:"${domain_front}"`
+		Hex      bool   `help:"Print secret in hex encoding."`
+	} `cmd help:"Generate new proxy secret."`
+	Access struct {
+		ConfigPath string `arg required type:"existingfile" help:"Path to the configuration file." name:"config-path"`
+	} `cmd help:"Print access information."`
+	Run struct {
+		ConfigPath string `arg required type:"existingfile" help:"Path to the configuration file." name:"config-path"`
+	} `cmd help:"Run proxy."`
+}
+
 func main() {
 	rand.Seed(time.Now().UTC().UnixNano())
 
-	f, _ := os.Open("example.config.toml")
+	cli := &CLI{}
+	ctx := kong.Parse(cli, kong.Vars{
+		"domain_front": "amazonaws.com",
+		"config_path":  "/etc/mtg.toml",
+	})
 
-	fmt.Println(parseConfig(f))
+	switch ctx.Command() {
+	case "generate-secret":
+		runGenerateSecret(cli)
+	case "access":
+	case "run":
+		panic("not implemented yet")
+	}
 }