Kris
d52e9b518d
新增trace_ctx实现链路ID上下文管理与日志注入，添加boot.py启动管理器、startup.py启动任务执行器、backoff.py退避策略工具以及trace.py启动链路追踪模块，完善channel运行时基础能力
52 lines
1.4 KiB
Python
52 lines
1.4 KiB
Python
from __future__ import annotations
|
|
|
|
import contextvars
|
|
import logging
|
|
import uuid
|
|
from collections.abc import Generator
|
|
from contextlib import contextmanager
|
|
from typing import Any
|
|
|
|
|
|
_trace_id_var: contextvars.ContextVar[str | None] = contextvars.ContextVar(
|
|
"channel_trace_id", default=None
|
|
)
|
|
|
|
|
|
class TraceIdFilter(logging.Filter):
|
|
"""日志过滤器：自动将当前 trace_id 注入 LogRecord 的 trace_id 属性。
|
|
|
|
配合 logging.Formatter 使用，在日志格式中包含 %(trace_id)s 即可。
|
|
"""
|
|
|
|
def filter(self, record: logging.LogRecord) -> bool:
|
|
trace_id = get_trace_id()
|
|
record.trace_id = trace_id or "-"
|
|
return True
|
|
|
|
|
|
def generate_trace_id() -> str:
|
|
return uuid.uuid4().hex[:16]
|
|
|
|
|
|
def get_trace_id() -> str | None:
|
|
return _trace_id_var.get()
|
|
|
|
|
|
def set_trace_id(trace_id: str | None) -> None:
|
|
_trace_id_var.set(trace_id)
|
|
|
|
|
|
@contextmanager
|
|
def trace_context(trace_id: str | None = None, **metadata: Any) -> Generator[str, None, None]:
|
|
token = _trace_id_var.set(trace_id or generate_trace_id())
|
|
try:
|
|
yield _trace_id_var.get()
|
|
finally:
|
|
_trace_id_var.reset(token)
|
|
|
|
|
|
def install_trace_filter(logger_name: str | None = None) -> None:
|
|
root_logger = logging.getLogger(logger_name)
|
|
if not any(isinstance(f, TraceIdFilter) for f in root_logger.filters):
|
|
root_logger.addFilter(TraceIdFilter()) |