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- database.py: 使用 IF NOT EXISTS 避免 PostgreSQL 事务中断导致后续迁移 SQL 不执行 - deploy.yaml: 补充 k8s-pod-monitor 镜像构建和 CronJob 部署步骤 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
48 lines
1.8 KiB
Python
48 lines
1.8 KiB
Python
from sqlmodel import SQLModel, create_engine
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from sqlmodel.ext.asyncio.session import AsyncSession
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from sqlalchemy.ext.asyncio import create_async_engine
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from sqlalchemy.orm import sessionmaker
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from sqlalchemy import text
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import os
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from dotenv import load_dotenv
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load_dotenv()
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DB_USER = os.getenv("DB_USER")
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DB_PASSWORD = os.getenv("DB_PASSWORD")
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DB_HOST = os.getenv("DB_HOST")
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DB_PORT = os.getenv("DB_PORT", "5432")
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DB_NAME = os.getenv("DB_NAME")
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DATABASE_URL = f"postgresql+asyncpg://{DB_USER}:{DB_PASSWORD}@{DB_HOST}:{DB_PORT}/{DB_NAME}"
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engine = create_async_engine(DATABASE_URL, echo=True, future=True)
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async def init_db():
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async with engine.begin() as conn:
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# await conn.run_sync(SQLModel.metadata.drop_all)
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await conn.run_sync(SQLModel.metadata.create_all)
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# Migrate: add new columns to existing repairtask table
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migrations = [
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"ALTER TABLE repairtask ADD COLUMN IF NOT EXISTS repair_round INTEGER DEFAULT 1",
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"ALTER TABLE repairtask ADD COLUMN IF NOT EXISTS failure_reason TEXT",
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# Log source support
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"ALTER TABLE errorlog ADD COLUMN IF NOT EXISTS source VARCHAR(20) DEFAULT 'runtime'",
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"ALTER TABLE errorlog ALTER COLUMN file_path DROP NOT NULL",
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"ALTER TABLE errorlog ALTER COLUMN line_number DROP NOT NULL",
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"CREATE INDEX IF NOT EXISTS ix_errorlog_source ON errorlog (source)",
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]
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for sql in migrations:
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try:
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await conn.execute(text(sql))
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except Exception:
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pass # Already applied
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async def get_session() -> AsyncSession:
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async_session = sessionmaker(
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engine, class_=AsyncSession, expire_on_commit=False
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)
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async with async_session() as session:
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yield session
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