make CLI configurable

utils/config.go

@@ -0,0 +1,29 @@
+package utils
+
+import (
+	"github.com/spf13/viper"
+)
+
+type config struct {
+	DnsPort   uint `mapstructure:"dns-port"`
+	HttpPort  uint `mapstructure:"http-port"`
+	HttpsPort uint `mapstructure:"https-port"`
+	Domain    string
+	Email     string
+
+	NameServers     []string
+	CADirURL        string
+	AccountFilePath string
+	KeyFilePath     string
+}
+
+var conf = &config{}
+
+func InitConfig() *config {
+	viper.Unmarshal(conf)
+	return conf
+}
+
+func GetConfig() *config {
+	return conf
+}