View audit logs for Anthos clusters

This document describes how to view log entries produced by Binary Authorization for Anthos clusters. These entries can be used to troubleshoot the system setup and use.

Preview

This product or feature is subject to the "Pre-GA Offerings Terms" in the General Service Terms section of the Service Specific Terms. Pre-GA products and features are available "as is" and might have limited support. For more information, see the launch stage descriptions.

Note: To use this document, you must configure your Anthos clusters user cluster to forward log entries to Cloud Audit Logs. To enable Cloud Audit Logs, you must configure the cloudAuditLogging section of your user cluster configuration file to properly forward log events. If your Anthos clusters clusters are not configured to forward log entries, you can view local audit logs by using keyword searches. Entries in local logs are formatted as described in this document.

This document describes how to use Cloud Audit Logs to query for log entries. You can also query log entries through the Cloud Audit Logs API.

View Cloud Audit Logs entries

1. In the Google Cloud console, go to the Cloud Audit Logs page.

   Go to Cloud Audit Logs

2. Select the Google Cloud project you configured in the cloudAuditLogging section of your user cluster configuration file.

3. Enter a filter. You can find example filters for Binary Authorization for Anthos clusters log entries in the following sections.

4. Select the activity log:

   1. Select the Log name combo box.

   2. Enter externalaudit.googleapis.com in the text box.

   3. Select the log named externalaudit.googleapis.com.

   4. Click Add.

   5. Make sure you select the time period when the events would have occurred.

5. Click Run Query.

View rejected Deployment log entries

To find Cloud Audit Logs entries for rejected Deployments, use the following query:

resource.type="k8s_cluster"
(protoPayload.methodName="io.k8s.core.v1.pods.create" OR
 protoPayload.methodName="io.k8s.core.v1.pods.update")
protoPayload.response.status="Failure"

View dry run log entries

To find Cloud Audit Logs entries related to Pod create or update with dry run enabled, use the following query:

resource.type="k8s_cluster"
(protoPayload.methodName="io.k8s.core.v1.pods.create" OR
 protoPayload.methodName="io.k8s.core.v1.pods.update")
labels."binaryauthorization.googleapis.com/dry-run"="true"

View breakglass log entries

To find Cloud Audit Logs entries related to Pod create or update with breakglass enabled, use the following query:

resource.type="k8s_cluster"
(protoPayload.methodName="io.k8s.core.v1.pods.create" OR
  protoPayload.methodName="io.k8s.core.v1.pods.update")
(labels."binaryauthorization.googleapis.com/break-glass"="true" OR
  protoPayload.request.metadata.labels."image-policy.k8s.io/break-glass"="true")