style: streamline CI pipeline in app entry point, utils, config and exceptions

Author: ibmgeniuz

app/config.py

@@ -58,10 +58,7 @@ class Settings(BaseSettings):
     rate_limit_requests_per_minute: int = 60
 
     model_config = SettingsConfigDict(
-        env_file=".env",
-        env_file_encoding="utf-8",
-        case_sensitive=False,
-        extra="ignore"
+        env_file=".env", env_file_encoding="utf-8", case_sensitive=False, extra="ignore"
     )
 
 
@@ -76,7 +73,7 @@ def configure_logging():
     logging.basicConfig(
         level=log_level,
         format="%(asctime)s - %(name)s - %(levelname)s - %(message)s",
-        datefmt="%Y-%m-%d %H:%M:%S"
+        datefmt="%Y-%m-%d %H:%M:%S",
     )
 
     # Set uvicorn log level

app/exceptions.py

@@ -10,6 +10,7 @@
 
 class VMException(Exception):
     """Base exception for VM operations"""
+
     def __init__(self, message: str, status_code: int = 500):
         self.message = message
         self.status_code = status_code
@@ -18,6 +19,7 @@ def __init__(self, message: str, status_code: int = 500):
 
 class VMNotFoundException(VMException):
     """Exception raised when VM is not found"""
+
     def __init__(self, vm_id: UUID):
         message = f"VM with ID {vm_id} not found"
         super().__init__(message, status_code=404)
@@ -26,6 +28,7 @@ def __init__(self, vm_id: UUID):
 
 class InvalidStateTransitionException(VMException):
     """Exception raised when attempting an invalid state transition"""
+
     def __init__(self, vm_id: UUID, current_state: str, attempted_action: str):
         message = (
             f"Cannot perform '{attempted_action}' on VM {vm_id} "
@@ -39,13 +42,15 @@ def __init__(self, vm_id: UUID, current_state: str, attempted_action: str):
 
 class ValidationException(VMException):
     """Exception raised for validation errors"""
+
     def __init__(self, message: str, field: Optional[str] = None):
         super().__init__(message, status_code=422)
         self.field = field
 
 
 class VMAlreadyExistsException(VMException):
     """Exception raised when trying to create a VM with a name that already exists"""
+
     def __init__(self, name: str):
         message = f"VM with name '{name}' already exists"
         super().__init__(message, status_code=409)

app/utils/helpers.py

@@ -3,4 +3,4 @@
 
 def get_datetime_now() -> datetime:
     """Return the current date and time in UTC timezone"""
-    return datetime.now(tz=timezone.utc)
+    return datetime.now(tz=timezone.utc)

main.py

@@ -41,7 +41,7 @@ async def lifespan(_app: FastAPI):
     docs_url="/docs",
     redoc_url="/redoc",
     openapi_url="/openapi.json",
-    lifespan=lifespan
+    lifespan=lifespan,
 )
 
 # Configure CORS
@@ -64,16 +64,17 @@ async def root():
         "message": "OpenStack VM Lifecycle Management API",
         "version": __version__,
         "docs": "/docs",
-        "health": f"/api/{settings.api_version}/health"
+        "health": f"/api/{settings.api_version}/health",
     }
 
 
 if __name__ == "__main__":
     import uvicorn
+
     uvicorn.run(
         "main:app",
         host=settings.host,
         port=settings.port,
         reload=settings.debug,
-        log_level=settings.log_level.lower()
+        log_level=settings.log_level.lower(),
     )