d0518d0737
Backend logging: - Centralized JSON logging config with LOG_LEVEL env var - Request logging middleware: user, method, path, status, duration, request_id - Fixed all 9 silent except:pass blocks to log warnings with tracebacks - Celery workers use same structured JSON format Infrastructure: - Loki 3.3.2 for log storage (30-day retention) - Promtail 3.3.2 for Docker container log shipping - Grafana 10.3.1 with auto-provisioned Loki datasource - Grafana on port 3002 (admin/pedshub_grafana) Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
52 lines
1.7 KiB
Python
52 lines
1.7 KiB
Python
"""Centralized structured JSON logging for backend and Celery workers."""
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import logging
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import logging.config
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import sys
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def setup_logging(level: str = "INFO"):
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"""Configure all Python loggers to output structured JSON to stdout."""
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try:
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from pythonjsonlogger.json import JsonFormatter
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formatter_class = "pythonjsonlogger.json.JsonFormatter"
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formatter_fmt = "%(asctime)s %(name)s %(levelname)s %(message)s"
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except ImportError:
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# Fallback if python-json-logger not installed
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formatter_class = "logging.Formatter"
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formatter_fmt = "%(asctime)s [%(levelname)s] %(name)s: %(message)s"
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config = {
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"version": 1,
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"disable_existing_loggers": False,
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"formatters": {
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"json": {
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"class": formatter_class,
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"format": formatter_fmt,
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"datefmt": "%Y-%m-%dT%H:%M:%S",
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},
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},
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"handlers": {
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"console": {
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"class": "logging.StreamHandler",
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"stream": "ext://sys.stdout",
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"formatter": "json",
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},
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},
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"root": {
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"level": level.upper(),
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"handlers": ["console"],
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},
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"loggers": {
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# Quieten noisy libraries
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"uvicorn.access": {"level": "WARNING"},
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"uvicorn.error": {"level": level.upper()},
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"chromadb": {"level": "WARNING"},
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"httpcore": {"level": "WARNING"},
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"httpx": {"level": "WARNING"},
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"celery": {"level": level.upper()},
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"sqlalchemy.engine": {"level": "WARNING"},
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},
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}
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logging.config.dictConfig(config)
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logging.getLogger(__name__).debug("Logging configured: level=%s", level)
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