Add base kubernetes support

services/pos/app/core/config.py

@@ -3,6 +3,7 @@
 POS Integration Service Configuration
 """
 
+import os
 from typing import List, Optional
 from pydantic import Field
 from shared.config.base import BaseServiceSettings
@@ -20,11 +21,23 @@ class Settings(BaseServiceSettings):
     # API Configuration
     API_V1_STR: str = "/api/v1"
     
-    # Override database URL to use POS_DATABASE_URL
-    DATABASE_URL: str = Field(
-        default="postgresql+asyncpg://pos_user:pos_pass123@pos-db:5432/pos_db",
-        env="POS_DATABASE_URL"
-    )
+    # Database configuration (secure approach - build from components)
+    @property
+    def DATABASE_URL(self) -> str:
+        """Build database URL from secure components"""
+        # Try complete URL first (for backward compatibility)
+        complete_url = os.getenv("POS_DATABASE_URL")
+        if complete_url:
+            return complete_url
+
+        # Build from components (secure approach)
+        user = os.getenv("POS_DB_USER", "pos_user")
+        password = os.getenv("POS_DB_PASSWORD", "pos_pass123")
+        host = os.getenv("POS_DB_HOST", "localhost")
+        port = os.getenv("POS_DB_PORT", "5432")
+        name = os.getenv("POS_DB_NAME", "pos_db")
+
+        return f"postgresql+asyncpg://{user}:{password}@{host}:{port}/{name}"
     
     # POS-specific Redis database
     REDIS_DB: int = Field(default=5, env="POS_REDIS_DB")