mirror of
https://github.com/NVIDIA/dgx-spark-playbooks.git
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145 lines
4.5 KiB
Python
145 lines
4.5 KiB
Python
#
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# SPDX-FileCopyrightText: Copyright (c) 1993-2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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# SPDX-License-Identifier: Apache-2.0
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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import json
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import logging
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import sys
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import traceback
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from datetime import datetime
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from typing import Any, Dict, Optional
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class JsonFormatter(logging.Formatter):
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"""
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Formatter that outputs JSON strings after parsing the log record.
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"""
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def __init__(self, **kwargs):
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self.default_keys = {
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'timestamp': 'asctime',
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'level': 'levelname',
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'message': 'message'
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}
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self.default_keys.update(kwargs)
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def format(self, record: logging.LogRecord) -> str:
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"""
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Format the log record as JSON.
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"""
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log_record = {}
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log_record['timestamp'] = datetime.utcnow().isoformat() + 'Z'
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log_record['level'] = record.levelname
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log_record['logger'] = record.name
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if isinstance(record.msg, dict):
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log_record['message'] = record.msg.get('message', '')
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for key, value in record.msg.items():
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if key != 'message':
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log_record[key] = value
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else:
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log_record['message'] = record.getMessage()
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if record.exc_info:
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log_record['exception'] = {
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'type': record.exc_info[0].__name__,
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'message': str(record.exc_info[1]),
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'traceback': traceback.format_exception(*record.exc_info)
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}
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for key, value in record.__dict__.items():
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if key not in ['msg', 'args', 'exc_info', 'exc_text', 'stack_info', 'lineno',
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'funcName', 'created', 'msecs', 'relativeCreated', 'levelname',
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'levelno', 'pathname', 'filename', 'module', 'name', 'thread',
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'threadName', 'processName', 'process']:
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log_record[key] = value
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return json.dumps(log_record)
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def setup_logger(name: str = 'backend',
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level: int = logging.INFO,
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log_file: Optional[str] = 'app.log') -> logging.Logger:
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"""
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Set up a JSON logger with console and file handlers.
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Args:
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name: Logger name
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level: Logging level
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log_file: Path to log file (None for no file logging)
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Returns:
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Configured logger instance
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"""
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logger = logging.getLogger(name)
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logger.setLevel(level)
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logger.propagate = False
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for handler in logger.handlers[:]:
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logger.removeHandler(handler)
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console_handler = logging.StreamHandler(sys.stdout)
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console_handler.setFormatter(JsonFormatter())
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logger.addHandler(console_handler)
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if log_file:
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file_handler = logging.FileHandler(log_file)
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file_handler.setFormatter(JsonFormatter())
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logger.addHandler(file_handler)
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return logger
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logger = setup_logger()
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def log_request(request_data: Dict[str, Any], endpoint: str) -> None:
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"""
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Log an API request with structured data.
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"""
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logger.info({
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'message': f'API request to {endpoint}',
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'endpoint': endpoint,
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'request_data': request_data
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})
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def log_response(response_data: Dict[str, Any], endpoint: str, status_code: int = 200) -> None:
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"""
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Log an API response with structured data.
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"""
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logger.info({
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'message': f'API response from {endpoint}',
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'endpoint': endpoint,
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'status_code': status_code,
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'response_data': response_data
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})
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def log_error(error: Exception, endpoint: str = None, request_data: Dict[str, Any] = None) -> None:
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"""
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Log an error with structured data.
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"""
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error_data = {
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'message': f'Error: {str(error)}',
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'error_type': error.__class__.__name__,
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}
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if endpoint:
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error_data['endpoint'] = endpoint
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if request_data:
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error_data['request_data'] = request_data
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logger.error(error_data, exc_info=True) |