Phil Skentelbery
b38fc328f9
- Switch from SQLAlchemy sessions to filesystem sessions to avoid race conditions with multiple gunicorn workers trying to create the sessions table simultaneously - Update Alembic env.py to use a minimal Flask app without Flask-Session to prevent session table creation during migrations - Add data directory creation to entrypoint.sh for clean container starts - Configure test environment to use filesystem sessions with temp directory 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
100 lines
2.7 KiB
Python
100 lines
2.7 KiB
Python
"""Alembic migration environment configuration.
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This module configures Alembic to work with the Flask application
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and SQLAlchemy models.
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"""
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import os
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from logging.config import fileConfig
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from pathlib import Path
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from alembic import context
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from flask import Flask
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from flask_sqlalchemy import SQLAlchemy
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# this is the Alembic Config object, which provides
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# access to the values within the .ini file in use.
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config = context.config
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# Interpret the config file for Python logging.
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# This line sets up loggers basically.
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if config.config_file_name is not None:
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fileConfig(config.config_file_name)
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# Create minimal Flask app for migrations (without session initialization)
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# This avoids Flask-Session trying to create tables before migrations run
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app = Flask(__name__)
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BASE_DIR = Path(__file__).parent.parent
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DATA_DIR = BASE_DIR / "data"
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DATA_DIR.mkdir(parents=True, exist_ok=True)
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app.config["SQLALCHEMY_DATABASE_URI"] = os.environ.get(
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"DATABASE_URL", f"sqlite:///{DATA_DIR / 'sneaky-klaus.db'}"
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)
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app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = False
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db = SQLAlchemy()
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db.init_app(app)
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# Import all models to register them with SQLAlchemy metadata
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with app.app_context():
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from src.models import ( # noqa: F401
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Admin,
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Exchange,
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MagicToken,
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Participant,
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RateLimit,
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)
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config.set_main_option("sqlalchemy.url", app.config["SQLALCHEMY_DATABASE_URI"])
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# Add your model's MetaData object here for 'autogenerate' support
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target_metadata = db.metadata
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def run_migrations_offline() -> None:
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"""Run migrations in 'offline' mode.
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This configures the context with just a URL
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and not an Engine, though an Engine is acceptable
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here as well. By skipping the Engine creation
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we don't even need a DBAPI to be available.
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Calls to context.execute() here emit the given string to the
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script output.
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"""
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url = config.get_main_option("sqlalchemy.url")
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context.configure(
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url=url,
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target_metadata=target_metadata,
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literal_binds=True,
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dialect_opts={"paramstyle": "named"},
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)
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with context.begin_transaction():
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context.run_migrations()
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def run_migrations_online() -> None:
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"""Run migrations in 'online' mode.
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In this scenario we need to create an Engine
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and associate a connection with the context.
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"""
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# Use the Flask app's engine instead of creating a new one
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with app.app_context():
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connectable = db.engine
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with connectable.connect() as connection:
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context.configure(connection=connection, target_metadata=target_metadata)
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with context.begin_transaction():
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context.run_migrations()
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if context.is_offline_mode():
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run_migrations_offline()
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else:
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run_migrations_online()
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