Implicit filesystem name from volume name. OBJECTSTORE env var.

config.json

@@ -37,6 +37,13 @@
                 "value"
             ]
         },
+        {
+            "name": "OBJECTSTORE",
+            "value": "",
+            "settable": [
+                "value"
+            ]
+        },
         {
             "name": "ENDPOINT",
             "value": "",

main.go

@@ -57,6 +57,7 @@ func (d ofsDriver) Create(r *volume.CreateRequest) error {
 	v.volume = &volume.Volume{Name: r.Name, Mountpoint: filepath.Join(volume.DefaultDockerRootDirectory, "objectivefs", r.Name), CreatedAt: time.Now().Format(time.RFC3339Nano)}
 	v.use = make(map[string]bool)
 	v.opts = "auto"
+	v.fs = r.Name
 	for key, val := range r.Options {
 		switch key {
 		case "fs":