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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Custom logs from a GCP Function do not contain execution-id","articleBody":"I am not sure if this is a bug or a misconfiguration issue but we are unable to get the `execution-id` in our logs. GCP's own function logs like startup/teardown/timeout contain it however our own logs don't. This makes it impossible to correlate all logs from an instance. \r\n\r\nExample (GCP function startup log)\r\n```\r\n{\r\n  insertId: \"000000-a51b0cd9-1f4d-4396-b812-4b35c8878b69\"\r\n  labels: {\r\n    execution_id: \"j57c7yk340qq\"\r\n  }\r\n  logName: \"projects/PROJECT-ID/logs/cloudfunctions.googleapis.com%2Fcloud-functions\"\r\n  receiveTimestamp: \"2021-06-30T17:37:16.202805413Z\"\r\n  resource: {\r\n    labels: {\r\n      function_name: \"FUNCTION-NAME\",\r\n      project_id: \"PROJECT-ID\",\r\n      region: \"REGION\"\r\n    }\r\n    type: \"cloud_function\"\r\n  }\r\n  severity: \"DEBUG\"\r\n  textPayload: \"Function execution started\"\r\n  timestamp: \"2021-06-30T17:37:05.341077546Z\"\r\n}\r\n```\r\nWe also tried setting a custom label in `CloudLoggingHandler` with a `trace-id` however GCP's own logs don't reflect the custom `trace-id`. This makes me think that GCP is using a separate logger which attaches the `execution-id` and our logs are isolated from that logger. \r\n\r\n#### Environment details\r\n\r\n  - OS type and version: N/A\r\n  - Python version: 3.7.9\r\n  - pip version: 21.1.2\r\n  - `google-cloud-logging` version:  2.3.1\r\n\r\n#### Steps to reproduce\r\n\r\n  1. Create and attach `CloudLoggingHandler` to a logger in a GCP function\r\n  2. Log an `INFO` message\r\n  3. Verify the log does not contain `execution-id` inside `labels`\r\n  \r\n#### Code example\r\nA simplified version of our logging setup and a basic event-trigger function.\r\n\r\n```python\r\nimport logging\r\n\r\nimport google.cloud.logging\r\nfrom google.cloud.logging_v2.handlers.handlers import CloudLoggingHandler\r\n\r\n\r\nclass FunctionLogger(logging.Logger):\r\n\r\n    def __init__(self, level=logging.NOTSET):\r\n        super().__init__(\"logger_name\", level)\r\n\r\n        client = google.cloud.logging.Client()\r\n\r\n        self._handler = CloudLoggingHandler(client)\r\n\r\n        self.propagate = False  # prevent logging from root logger\r\n        self.addHandler(self._handler)\r\n\r\n\r\ndef handler(event, context=None):\r\n    \"\"\"function entry point\"\"\"\r\n    logger = FunctionLogger()\r\n\r\n    logger.info(\"Test message\")\r\n```\r\n\r\nThanks!!","author":{"url":"https://github.com/amertkara","@type":"Person","name":"amertkara"},"datePublished":"2021-06-30T18:06:38.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/343/python-logging/issues/343"}