dynamic conf

config.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"log"
 	"os"
+	"time"
 
 	"gopkg.in/yaml.v2"
 )
@@ -30,8 +31,8 @@ type (
 	}
 )
 
-func NewConfig() (Config, error) {
-	var c Config
+func NewConfig() (*Config, error) {
+	c := &Config{}
 
 	fs := flag.NewFlagSet(os.Args[0], flag.ContinueOnError)
 	fs.StringVar(&c.Cert.CRT, "crt", "", "path to .crt")
@@ -60,3 +61,25 @@ func NewConfig() (Config, error) {
 
 	return c, nil
 }
+
+func (c *Config) Start() {
+	go c.start()
+}
+
+func (c *Config) start() {
+	ch := time.NewTicker(30 * time.Second)
+	defer ch.Stop()
+
+	for range ch.C {
+		func() {
+			c2, err := NewConfig()
+			if err != nil {
+				return
+			}
+
+			if fmt.Sprintf("%+v", c.Domains) != fmt.Sprintf("%+v", c2.Domains) {
+				c.Domains = c2.Domains
+			}
+		}()
+	}
+}