vendor protobuf & grpc

Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>

client.go

@@ -64,6 +64,7 @@ import (
 	specs "github.com/opencontainers/runtime-spec/specs-go"
 	"github.com/pkg/errors"
 	"google.golang.org/grpc"
+	"google.golang.org/grpc/backoff"
 	"google.golang.org/grpc/health/grpc_health_v1"
 )
 
@@ -110,11 +111,16 @@ func New(address string, opts ...ClientOpt) (*Client, error) {
 		c.services = *copts.services
 	}
 	if address != "" {
+		backoffConfig := backoff.DefaultConfig
+		backoffConfig.MaxDelay = 3 * time.Second
+		connParams := grpc.ConnectParams{
+			Backoff: backoffConfig,
+		}
 		gopts := []grpc.DialOption{
 			grpc.WithBlock(),
 			grpc.WithInsecure(),
 			grpc.FailOnNonTempDialError(true),
-			grpc.WithBackoffMaxDelay(3 * time.Second),
+			grpc.WithConnectParams(connParams),
 			grpc.WithContextDialer(dialer.ContextDialer),
 
 			// TODO(stevvooe): We may need to allow configuration of this on the client.