Eventually this should be added to the documentation by the Harness product documentation specialists
The Harness delegate will try to upload its logs to GCP logging for easier troubleshooting for the Harness support team. As you can see, we suggest that customers whitelist logging.google.com in our docs here: Whitelist Harness Domains and IPs | Harness Developer Hub.
Some customers elect to block this log upload. This is OK, but it will continuously appear in the delegate logs. We have a delegate environment variable that suppressed this logging. Just add the below parameter to the env section of the delegate yaml and reload the pod:
STACK_DRIVER_LOGGING_ENABLED=false