StorageDrivers should exit non-zero on error (closes #803)

cmd/registry-storagedriver-filesystem/main.go

@@ -4,6 +4,8 @@ import (
 	"encoding/json"
 	"os"
 
+	"github.com/Sirupsen/logrus"
+
 	"github.com/docker/docker-registry/storagedriver/filesystem"
 	"github.com/docker/docker-registry/storagedriver/ipc"
 )
@@ -17,5 +19,7 @@ func main() {
 		panic(err)
 	}
 
-	ipc.StorageDriverServer(filesystem.FromParameters(parameters))
+	if err := ipc.StorageDriverServer(filesystem.FromParameters(parameters)); err != nil {
+		logrus.Fatalln(err)
+	}
 }

cmd/registry-storagedriver-inmemory/main.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"github.com/Sirupsen/logrus"
 	"github.com/docker/docker-registry/storagedriver/inmemory"
 	"github.com/docker/docker-registry/storagedriver/ipc"
 )
@@ -8,5 +9,7 @@ import (
 // An out-of-process inmemory driver, intended to be run by ipc.NewDriverClient
 // This exists primarily for example and testing purposes
 func main() {
-	ipc.StorageDriverServer(inmemory.New())
+	if err := ipc.StorageDriverServer(inmemory.New()); err != nil {
+		logrus.Fatalln(err)
+	}
 }

cmd/registry-storagedriver-s3/main.go

@@ -4,6 +4,8 @@ import (
 	"encoding/json"
 	"os"
 
+	"github.com/Sirupsen/logrus"
+
 	"github.com/docker/docker-registry/storagedriver/ipc"
 	"github.com/docker/docker-registry/storagedriver/s3"
 )
@@ -22,5 +24,7 @@ func main() {
 		panic(err)
 	}
 
-	ipc.StorageDriverServer(driver)
+	if err := ipc.StorageDriverServer(driver); err != nil {
+		logrus.Fatalln(err)
+	}
 }