All sibling services on the box manage schema with Alembic (async env, `alembic upgrade head` in the compose command). matchmaking-v2 was the outlier (Base.metadata.create_all + no migration for the new user_feed.exhausted_at column). Bring it onto the pattern: - alembic.ini + alembic/env.py (async, URL from settings.DATABASE_URL, target = Base.metadata) + script.py.mako — copied/adapted from user-service. - versions/0001_baseline: the current prod schema (user_feed WITHOUT exhausted_at + opportunity_state). - versions/0002_pool_and_exhausted: CREATE user_job_pool + ADD user_feed.exhausted_at (additive). - Dockerfile: COPY alembic.ini + alembic/. requirements: alembic>=1.13.0. Verified both paths: fresh DB → upgrade head builds all 3 tables; prod-like (existing tables+data) → stamp 0001 → upgrade runs ONLY 0002, existing rows survive. 64 tests pass. PROD ADOPTION (one-time): `alembic stamp 0001_baseline` on RDS before the first deploy, then the compose's `alembic upgrade head` applies 0002.
68 lines
2.2 KiB
Python
68 lines
2.2 KiB
Python
"""Alembic async env — matches the sibling-service house pattern (user-service et al.).
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Reads the live DB URL from app settings (overriding the alembic.ini placeholder), targets
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Base.metadata (all models live in app.db.models), and runs migrations on the async engine.
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"""
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import asyncio
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import sys
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from logging.config import fileConfig
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from pathlib import Path
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# Ensure the project root is importable when alembic runs via the console script.
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PROJECT_ROOT = Path(__file__).resolve().parents[1]
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if str(PROJECT_ROOT) not in sys.path:
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sys.path.insert(0, str(PROJECT_ROOT))
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from alembic import context
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from sqlalchemy import pool
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from sqlalchemy.ext.asyncio import async_engine_from_config
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from app.config import get_settings
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from app.db.models import Base # importing Base registers every model on Base.metadata
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settings = get_settings()
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config = context.config
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# Live URL from settings (DATABASE_URL) overrides the ini placeholder; fall back to the ini value.
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config.set_main_option("sqlalchemy.url", settings.DATABASE_URL or config.get_main_option("sqlalchemy.url"))
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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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target_metadata = Base.metadata
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def run_migrations_offline() -> None:
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url = config.get_main_option("sqlalchemy.url")
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context.configure(url=url, target_metadata=target_metadata, literal_binds=True,
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dialect_opts={"paramstyle": "named"})
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with context.begin_transaction():
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context.run_migrations()
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def do_run_migrations(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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async def run_async_migrations() -> None:
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connectable = async_engine_from_config(
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config.get_section(config.config_ini_section, {}),
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prefix="sqlalchemy.",
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poolclass=pool.NullPool,
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)
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async with connectable.connect() as connection:
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await connection.run_sync(do_run_migrations)
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await connectable.dispose()
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def run_migrations_online() -> None:
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asyncio.run(run_async_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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