Passing log metadata and log severity levels from Container Optimized OS to Cloud Logging

Question

I am running a containerized application with the standard Python logger on aCOS on GCE. I followed the official documentation and connected my logger to Cloud Logging via --metadata google-logging-enabled=true option used during the creation of VM with the container.

However, all of my logs appear as Default severity, regardless of their actual type, which is being logged in jsonPayload.message, under level.

Example:

{
  "insertId": "d941eraehq2oe74vz",
  "jsonPayload": {
    "cos.googleapis.com/container_name": "klt-ingest-tfpo",
    "message": "{\"message\":\"Faulty nested document: unclosed token: line 1, column 0\",\"level\":\"ERROR\",\"name\":\"Parser\",\"pathname\":\"\\/app\\/src\\/parsers\\/parser.py\",\"lineno\":252,\"time\":\"2023-03-01T19:59:44.714053\"}\n",
    "cos.googleapis.com/container_id": "50a03fa8815bbc6b15dfe2bfac78c826721460b878ded8788f93c157ff0d872f",
    "cos.googleapis.com/stream": "stderr"
  },
  "resource": {
    "type": "gce_instance",
    "labels": {
      "zone": "ZONE",
      "project_id": "PROJECT_NAME",
      "instance_id": "INSTANCE_ID"
    }
  },
  "timestamp": "2023-03-01T19:59:45.538228300Z",
  "labels": {
    "compute.googleapis.com/resource_name": "45a5a431640f"
  },
  "logName": "PROJECT_NAME/logs/cos_containers",
  "receiveTimestamp": "2023-03-01T19:59:50.755964042Z"
}

Is there a way for Cloud Logger to pick up the log severity type from the logs, other than using google's logging client inside the module?

I presume I could also filter by contents of jsonPayload - is there a way to access the level field inside it?

Passing log metadata and log severity levels from Container Optimized OS to Cloud Logging

0 Answers0