rely on MICRO_REGISTRY to swap registries

ocis/pkg/command/root.go

@@ -4,6 +4,12 @@ import (
 	"os"
 	"strings"
 
+	etcdr "github.com/micro/go-micro/v2/registry/etcd"
+	mdnsr "github.com/micro/go-micro/v2/registry/mdns"
+
+	"github.com/micro/go-micro/v2"
+	"github.com/micro/go-micro/v2/registry"
+
 	"github.com/micro/cli/v2"
 	"github.com/owncloud/ocis/ocis-pkg/log"
 	"github.com/owncloud/ocis/ocis/pkg/config"
@@ -14,7 +20,7 @@ import (
 	"github.com/spf13/viper"
 )
 
-// Execute is the entry point for the ocis-ocis command.
+// Execute is the entry point for the ocis command.
 func Execute() error {
 	cfg := config.New()
 
@@ -44,7 +50,19 @@ func Execute() error {
 		)
 	}
 
-	runtime.AddMicroPlatform(app)
+	var r registry.Registry
+	switch os.Getenv("MICRO_REGISTRY") {
+	case "etcd":
+		r = etcdr.NewRegistry()
+	default:
+		r = mdnsr.NewRegistry()
+	}
+
+	opts := micro.Options{
+		Registry: r,
+	}
+
+	runtime.AddMicroPlatform(app, opts)
 
 	cli.HelpFlag = &cli.BoolFlag{
 		Name:  "help,h",

ocis/pkg/command/server.go

@@ -32,7 +32,7 @@ func Server(cfg *config.Config) *cli.Command {
 				return err
 			}
 
-			r := runtime.New()
+			r := runtime.New(cfg)
 			return r.Start()
 		},
 	}