introduce EasyRSA._

api/kiwi_vpn_api/easyrsa.py

@@ -4,6 +4,7 @@ Python interface to EasyRSA CA.
 
 from __future__ import annotations
 
+import functools
 import subprocess
 from enum import Enum, auto
 from pathlib import Path
@@ -139,6 +140,20 @@ class EasyRSA:
         None: {},
     }
 
+    @classmethod
+    @functools.lru_cache
+    def _load(cls) -> EasyRSA:
+        return cls()
+
+    @classmethod
+    @property
+    def _(cls) -> EasyRSA:
+        """
+        Get the singleton
+        """
+
+        return cls._load()
+
     @property
     def output_directory(self) -> Path:
         """