Teradata MCP Server

"""Package configuration module for teradata-mcp-server. Provides the runtime Settings dataclass, helpers and defaults Also carries packaged configuration files (e.g., default profiles.yml). """ from __future__ import annotations from dataclasses import dataclass import os @dataclass(frozen=True) class Settings: # General profile: str | None = None database_uri: str | None = None # MCP transport mcp_transport: str = "stdio" # stdio | streamable-http | sse mcp_host: str = "localhost" mcp_port: int = 8001 mcp_path: str = "/mcp/" # Auth auth_mode: str = "none" # none | basic auth_cache_ttl: int = 300 # Database configuration logmech: str = "TD2" auth_rate_limit_attempts: int = 5 auth_rate_limit_window: int = 60 pool_size: int = 5 max_overflow: int = 10 pool_timeout: int = 30 # Logging logging_level: str = os.getenv("LOGGING_LEVEL", "WARNING") def settings_from_env() -> Settings: """Create Settings from environment variables only. This avoids mutating os.environ and centralizes precedence. """ return Settings( profile=os.getenv("PROFILE") or None, database_uri=os.getenv("DATABASE_URI") or None, mcp_transport=os.getenv("MCP_TRANSPORT", "stdio").lower(), mcp_host=os.getenv("MCP_HOST", "localhost"), mcp_port=int(os.getenv("MCP_PORT", "8001")), mcp_path=os.getenv("MCP_PATH", "/mcp/"), auth_mode=os.getenv("AUTH_MODE", "none").lower(), auth_cache_ttl=int(os.getenv("AUTH_CACHE_TTL", "300")), logmech=os.getenv("LOGMECH", "TD2"), auth_rate_limit_attempts=int(os.getenv("AUTH_RATE_LIMIT_ATTEMPTS", "5")), auth_rate_limit_window=int(os.getenv("AUTH_RATE_LIMIT_WINDOW", "60")), pool_size=int(os.getenv("TD_POOL_SIZE", "5")), max_overflow=int(os.getenv("TD_MAX_OVERFLOW", "10")), pool_timeout=int(os.getenv("TD_POOL_TIMEOUT", "30")), logging_level=os.getenv("LOGGING_LEVEL", "WARNING"), )