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Google Stackdriver logging advanced filter to view logs across multiple Compute Engine instances by instance name
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| resource.type="gce_instance" | |
| logName="projects/my-project-name/logs/apache-error" | |
| labels."compute.googleapis.com/resource_name":"-web-" | |
| textPayload:"execution time" |
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Use case: I'm a developer troubleshooting an error on a cluster of web servers, and I want to view the Apache logs from all servers, in chronological order.
The Stackdriver Logging docs only show you how to select instances by their instance ID. Finding each server's ID is a hassle, especially for a large cluster, and it is especially impractical for managed instance groups that auto-scale. This filter allows you to select log entries from an arbitrary group of servers with a partial name match. For example, assume that your servers are Google Compute Engine instances that are named [region]-[zone]-web-[id].
logNameselects the log (use auto-complete to find the exact name)labelsselects the servers by a partial name matchtextPayloadsearches within each log entry (in this case, for PHP processes that exceeded the max execution time)