Use protoversion for containerd version

Signed-off-by: Peter Edge <peter.edge@gmail.com>

containerd/main.go

@@ -9,6 +9,8 @@ import (
 	"syscall"
 	"time"
 
+	"go.pedge.io/proto/version"
+
 	"google.golang.org/grpc"
 
 	"github.com/Sirupsen/logrus"
@@ -77,7 +79,7 @@ var daemonFlags = []cli.Flag{
 func main() {
 	app := cli.NewApp()
 	app.Name = "containerd"
-	app.Version = containerd.Version
+	app.Version = containerd.Version.VersionString()
 	app.Usage = Usage
 	app.Authors = authors
 	app.Flags = daemonFlags
@@ -201,6 +203,15 @@ func daemon(id, address, stateDir string, concurrency int, oom bool) error {
 	}
 	s := grpc.NewServer()
 	types.RegisterAPIServer(s, server.NewServer(sv))
+	protoversion.RegisterAPIServer(
+		s,
+		protoversion.NewAPIServer(
+			containerd.Version,
+			protoversion.APIServerOptions{
+				DisableLogging: true,
+			},
+		),
+	)
 	logrus.Debugf("GRPC API listen on %s", address)
 	return s.Serve(l)
 }