config.py

@@ -6,23 +6,12 @@ with open("config.yaml") as f:
     cfg = yaml.load(f, Loader=yaml.FullLoader)
 
 class Config:
-    config_data: dict
-    __instance = None
-
-    def __getitem__(self, name):
-        if name in self.config_data:
-            return self.config_data[name]
-        return None
-
-    def __new__(cls):
-        if cls.__instance is None:
-            cls.__instance = super().__new__(cls)
-            cls.__instance.__init()
-        return cls.__instance
-
-    def __init(self):
+    def __init__(self):
         load_dotenv()
         self.config_data = cfg
         for key in cfg.keys():
             if key in os.environ:
                 self.config_data[key] = os.environ[key]
+            setattr(self, key, self.config_data[key])
+
+CONFIG = Config()

database.py

@@ -1,18 +1,17 @@
-from config import Config
+from config import CONFIG
 import psycopg2.extras
 import psycopg2
 
 class Database():
     def __init__(self):
-        self.config = Config()
         self.connect()
 
     def connect(self):
         self.conn = psycopg2.connect(
-            host=self.config["db_host"],
-            database=self.config["db_database"],
-            user=self.config["db_user"],
-            password=self.config["db_password"]
+            host=CONFIG.db_host,
+            database=CONFIG.db_database,
+            user=CONFIG.db_user,
+            password=CONFIG.db_password
         )
         self.cur = self.conn.cursor(
             cursor_factory=psycopg2.extras.RealDictCursor)

pingpong.py

@@ -1,12 +1,11 @@
 from database import Database
 from pythonping import ping
 from tcppinglib import tcpping
-from config import Config
+from config import CONFIG
 
 class PingPong:
     def __init__(self):
         self.db = Database()
-        self.config = Config()
 
     def icmp_ping(self, service):
         r = {}
@@ -29,7 +28,7 @@ class PingPong:
 
     def start(self):
         latency = {
-            "location": self.config["location"]
+            "location": CONFIG.location
         }
         for el in self.db.get_all_services():
             state = self.db.create_state(el['id'])[0]