GCS configuration

[killme2008]

Traffic between Greptime and GCS should be free as long as they are in the same region, even if a region-level endpoint is not configured: Google Cloud VPC Network Pricing.

Please ensure you have configured Private Google Access if your instances do not have a public IP and need to access external services via VPC.

Thanks for sharing. Maybe we can add an FAQ item to our documents.

Originally posted by @killme2008 in #5656