hankin
423baff73b
- Docker bridge 网络隔离（8000 端口封死） - Gunicorn 4 Worker 多进程 - Alembic 数据库迁移基线 - 日志轮转 20m×3 - JWT 密钥 + DB 密码 + CORS 收紧 - 3-2-1 备份链路（NAS + R740-B 冷备） - 连接池 pool_pre_ping + pool_recycle=3600
94 lines
2.7 KiB
Python
94 lines
2.7 KiB
Python
"""
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Alembic env.py — 异步 PostgreSQL 迁移环境
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从 .env 读取 DATABASE_URL，自动发现项目所有 ORM 模型
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"""
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import asyncio
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import os
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import sys
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from logging.config import fileConfig
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from alembic import context
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from dotenv import load_dotenv
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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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# 确保项目根目录在 sys.path 中
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sys.path.insert(0, os.path.dirname(os.path.dirname(__file__)))
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# 加载 .env
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load_dotenv(os.path.join(os.path.dirname(os.path.dirname(__file__)), ".env"))
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# Alembic Config
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config = context.config
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# 从 .env 动态设置 sqlalchemy.url（asyncpg → psycopg2 用于迁移）
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db_url = os.getenv("DATABASE_URL", "")
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# Alembic 需要同步驱动，将 asyncpg 替换为 psycopg2
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sync_url = db_url.replace("+asyncpg", "")
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config.set_main_option("sqlalchemy.url", sync_url)
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# 日志配置
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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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# 导入所有模型，确保 Alembic 能检测到所有表
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from app.models.base import Base
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from app.models import crm, erp, order, shipping, finance, ai, sys as sys_models
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target_metadata = Base.metadata
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def run_migrations_offline() -> None:
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"""离线迁移（仅生成 SQL 脚本）"""
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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 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():
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"""在线迁移（异步引擎）"""
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from sqlalchemy.ext.asyncio import create_async_engine
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connectable = create_async_engine(
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os.getenv("DATABASE_URL", ""),
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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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"""在线迁移入口"""
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# 如果是 asyncpg 则走异步迁移
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db_url = os.getenv("DATABASE_URL", "")
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if "asyncpg" in db_url:
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asyncio.run(run_async_migrations())
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else:
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from sqlalchemy import engine_from_config
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connectable = 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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with connectable.connect() as connection:
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do_run_migrations(connection)
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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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