Set register ttl and interval by default

config/cmd/cmd.go

@@ -95,11 +95,13 @@ var (
 		cli.IntFlag{
 			Name:   "register_ttl",
 			EnvVar: "MICRO_REGISTER_TTL",
+			Value:  60,
 			Usage:  "Register TTL in seconds",
 		},
 		cli.IntFlag{
 			Name:   "register_interval",
 			EnvVar: "MICRO_REGISTER_INTERVAL",
+			Value:  30,
 			Usage:  "Register interval in seconds",
 		},
 		cli.StringFlag{
@@ -417,11 +419,11 @@ func (c *cmd) Before(ctx *cli.Context) error {
 		serverOpts = append(serverOpts, server.Advertise(ctx.String("server_advertise")))
 	}
 
-	if ttl := time.Duration(ctx.GlobalInt("register_ttl")); ttl > 0 {
+	if ttl := time.Duration(ctx.GlobalInt("register_ttl")); ttl >= 0 {
 		serverOpts = append(serverOpts, server.RegisterTTL(ttl*time.Second))
 	}
 
-	if val := time.Duration(ctx.GlobalInt("register_interval")); val > 0 {
+	if val := time.Duration(ctx.GlobalInt("register_interval")); val >= 0 {
 		serverOpts = append(serverOpts, server.RegisterInterval(val*time.Second))
 	}
 

server/options.go

@@ -42,8 +42,10 @@ type Options struct {
 
 func newOptions(opt ...Option) Options {
 	opts := Options{
-		Codecs:   make(map[string]codec.NewCodec),
-		Metadata: map[string]string{},
+		Codecs:           make(map[string]codec.NewCodec),
+		Metadata:         map[string]string{},
+		RegisterInterval: DefaultRegisterInterval,
+		RegisterTTL:      DefaultRegisterTTL,
 	}
 
 	for _, o := range opt {

server/server.go

@@ -116,13 +116,15 @@ type Subscriber interface {
 type Option func(*Options)
 
 var (
-	DefaultAddress              = ":0"
-	DefaultName                 = "go.micro.server"
-	DefaultVersion              = time.Now().Format("2006.01.02.15.04")
-	DefaultId                   = uuid.New().String()
-	DefaultServer        Server = newRpcServer()
-	DefaultRouter               = newRpcRouter()
-	DefaultRegisterCheck        = func(context.Context) error { return nil }
+	DefaultAddress                 = ":0"
+	DefaultName                    = "go.micro.server"
+	DefaultVersion                 = time.Now().Format("2006.01.02.15.04")
+	DefaultId                      = uuid.New().String()
+	DefaultServer           Server = newRpcServer()
+	DefaultRouter                  = newRpcRouter()
+	DefaultRegisterCheck           = func(context.Context) error { return nil }
+	DefaultRegisterInterval        = time.Second * 30
+	DefaultRegisterTTL             = time.Minute
 )
 
 // DefaultOptions returns config options for the default service