feat: basic volume plugin commands

internal/driver/path.go

@@ -0,0 +1,22 @@
+package driver
+
+import (
+	"encoding/json"
+	"net/http"
+)
+
+func Path(w http.ResponseWriter, r *http.Request) {
+	var req PathRequest
+	_ = json.NewDecoder(r.Body).Decode(&req)
+
+	vol, ok := volumes[req.Name]
+	if !ok {
+		_ = json.NewEncoder(w).Encode(map[string]string{"Err": "volume not found"})
+		return
+	}
+
+	_ = json.NewEncoder(w).Encode(map[string]string{
+		"Mountpoint": vol.Path,
+		"Err":        "",
+	})
+}