Align identity service settings with pydantic-settings

[shayancoin]

Summary

• add pydantic-settings to the identity service runtime dependencies
• update the identity settings module to use BaseSettings from pydantic_settings with model_config defaults
• preserve DSN validation while normalizing whitespace

Testing

• pytest

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https://chatgpt.com/codex/tasks/task_e_68f45b54a5548330a443925e5e0c86e6

Summary by CodeRabbit

• Chores
  • Established configuration management system for the identity service with support for environment-based settings and secrets handling.
  • Added project configuration and dependencies for the identity service, including runtime and development requirements.

[coderabbitai]

Caution

Review failed

The pull request is closed.

Walkthrough

Two new files establish the identity service's foundational infrastructure: a settings module providing cached environment-based configuration with PostgreSQL and Redis DSN validation, and a project configuration file defining dependencies and build system requirements.

Changes

Cohort / File(s)	Summary
Settings module services/identity/app/core/settings.py	Introduces Settings class extending BaseSettings with database_dsn and redis_dsn PostgreSQL/Redis DSN fields, environment variable loading from .env files, and a classmethod validator stripping whitespace from DSN values. Adds cached get_settings() function using functools.lru_cache for memoized access.
Project configuration services/identity/pyproject.toml	Defines Poetry project metadata, runtime dependencies (Python 3.11, FastAPI, Pydantic v2, Pydantic Settings, Uvicorn), and development dependencies (Pytest, HTTPX). Sets poetry-core as build backend.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~12 minutes

Possibly related PRs

• Cache API settings helper #23: Both PRs introduce a cached get_settings() helper using functools.lru_cache for Settings configuration access, establishing a shared pattern for dependency injection.
• Normalize external id updates and extend CRUD tests #111: Related through configuration types and cached settings access; the other PR consumes the Settings pattern and accepts Settings instances.
• Use shared settings dependency in security helpers #52: Both PRs establish how the centralized get_settings dependency is provided and consumed across services.

Poem

🐰 Hops through the .env with glee,
DSN configs cached with lru_cache spree,
PostgreSQL and Redis dance so fine,
Settings validated, all in line,
Poetry orchestrates, dependencies align! ✨

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch codex/update-settings-for-pydantic-settings

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📜 Recent review details

Configuration used: CodeRabbit UI

Review profile: ASSERTIVE

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 4540967 and f93da20.

📒 Files selected for processing (2)

• services/identity/app/core/settings.py (1 hunks)
• services/identity/pyproject.toml (1 hunks)

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