fix(logging): allow nil or custom zones in resource detection (#3997)

googleapis · May 3, 2021 · aded90b · aded90b
1 parent dcfadaf
commit aded90b
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/logging/logging.go b/logging/logging.go
@@ -404,7 +404,11 @@ func monitoredResource(parent string) *mrpb.MonitoredResource {
 }
 
 func regionFromZone(zone string) string {
-	return zone[:strings.LastIndex(zone, "-")]
+	cutoff := strings.LastIndex(zone, "-")
+	if cutoff > 0 {
+		return zone[:cutoff]
+	}
+	return zone
 }
 
 func globalResource(projectID string) *mrpb.MonitoredResource {