add scan timestamp for openshift metrics to payload

PiperOrigin-RevId: 853963107

Author: Google Cloud Agent for Compute Workloads Dev

internal/openshiftmetrics/openshiftmetrics.go

@@ -91,6 +91,7 @@ func (o *OpenShiftMetrics) CollectMetrics(ctx context.Context, versionData Metri
 	payload := &ompb.OpenshiftMetricsPayload{
 		Version:      versionData.PayloadVersion,
 		AgentVersion: versionData.AgentVersion,
+		ScanTimestamp: tspb.Now(),
 	}
 	logger := log.CtxLogger(ctx)
 	logger.Debugw("Base metric payload", "payload", payload)

protos/openshiftmetrics/openshiftmetrics.proto

@@ -53,6 +53,8 @@ message OpenshiftMetricsPayload {
   ResourceListContainer nodes = 13;
   // The cloud credential config of the Openshift cluster.
   CloudCredentialConfig cloud_credential_config = 14;
+  // The UTC timestamp when the metric payload was generated.
+  google.protobuf.Timestamp scan_timestamp = 15;
 }
 
 // General container for K8 resources.
@@ -342,7 +344,8 @@ message Affinity {
   }
 }
 
-// Reference: https://docs.redhat.com/en/documentation/openshift_container_platform/4.10/html/authentication_and_authorization/managing-cloud-provider-credentials
+// Reference:
+// https://docs.redhat.com/en/documentation/openshift_container_platform/4.20/html/authentication_and_authorization/managing-cloud-provider-credentials
 message CloudCredentialConfig {
   ResourceMetadata metadata = 1;
   Spec spec = 2;