bunch of other ipv6 fixes

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

broker/http_broker.go

@@ -627,12 +627,6 @@ func (h *httpBroker) Subscribe(topic string, handler Handler, opts ...SubscribeO
 		return nil, err
 	}
 
-	// ipv6 addr
-	if addr == "::" {
-		// ipv6 addr
-		addr = fmt.Sprintf("[%s]", addr)
-	}
-
 	// create unique id
 	id := h.id + "." + uuid.New().String()
 
@@ -645,7 +639,7 @@ func (h *httpBroker) Subscribe(topic string, handler Handler, opts ...SubscribeO
 	// register service
 	node := &registry.Node{
 		Id:      id,
-		Address: fmt.Sprintf("%s:%s", addr, port),
+		Address: mnet.HostPort(addr, port),
 		Metadata: map[string]string{
 			"secure": fmt.Sprintf("%t", secure),
 		},

broker/memory/memory.go

@@ -3,15 +3,20 @@ package memory
 
 import (
 	"errors"
+	"math/rand"
 	"sync"
+	"time"
 
 	"github.com/google/uuid"
 	"github.com/micro/go-micro/broker"
+	maddr "github.com/micro/go-micro/util/addr"
+	mnet "github.com/micro/go-micro/util/net"
 )
 
 type memoryBroker struct {
 	opts broker.Options
 
+	addr string
 	sync.RWMutex
 	connected   bool
 	Subscribers map[string][]*memorySubscriber
@@ -35,7 +40,7 @@ func (m *memoryBroker) Options() broker.Options {
 }
 
 func (m *memoryBroker) Address() string {
-	return ""
+	return m.addr
 }
 
 func (m *memoryBroker) Connect() error {
@@ -46,6 +51,15 @@ func (m *memoryBroker) Connect() error {
 		return nil
 	}
 
+	addr, err := maddr.Extract("::")
+	if err != nil {
+		return err
+	}
+	i := rand.Intn(20000)
+	// set addr with port
+	addr = mnet.HostPort(addr, 10000+i)
+
+	m.addr = addr
 	m.connected = true
 
 	return nil
@@ -171,6 +185,7 @@ func (m *memorySubscriber) Unsubscribe() error {
 
 func NewBroker(opts ...broker.Option) broker.Broker {
 	var options broker.Options
+	rand.Seed(time.Now().UnixNano())
 	for _, o := range opts {
 		o(&options)
 	}