Expects storage driver executables to be of the form registry-storage-name

Moves main packages to sub-packages of the individual storage drivers

cmd/registry-storagedriver-filesystem/main.go

@@ -0,0 +1,21 @@
+package main
+
+import (
+	"encoding/json"
+	"os"
+
+	"github.com/docker/docker-registry/storagedriver/filesystem"
+	"github.com/docker/docker-registry/storagedriver/ipc"
+)
+
+// An out-of-process filesystem driver, intended to be run by ipc.NewDriverClient
+func main() {
+	parametersBytes := []byte(os.Args[1])
+	var parameters map[string]string
+	err := json.Unmarshal(parametersBytes, &parameters)
+	if err != nil {
+		panic(err)
+	}
+
+	ipc.StorageDriverServer(filesystem.FromParameters(parameters))
+}

cmd/registry-storagedriver-inmemory/main.go

@@ -0,0 +1,12 @@
+package main
+
+import (
+	"github.com/docker/docker-registry/storagedriver/inmemory"
+	"github.com/docker/docker-registry/storagedriver/ipc"
+)
+
+// 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())
+}

cmd/registry-storagedriver-s3/main.go

@@ -0,0 +1,26 @@
+package main
+
+import (
+	"encoding/json"
+	"os"
+
+	"github.com/docker/docker-registry/storagedriver/ipc"
+	"github.com/docker/docker-registry/storagedriver/s3"
+)
+
+// An out-of-process S3 driver, intended to be run by ipc.NewDriverClient
+func main() {
+	parametersBytes := []byte(os.Args[1])
+	var parameters map[string]string
+	err := json.Unmarshal(parametersBytes, &parameters)
+	if err != nil {
+		panic(err)
+	}
+
+	driver, err := s3.FromParameters(parameters)
+	if err != nil {
+		panic(err)
+	}
+
+	ipc.StorageDriverServer(driver)
+}