Walter developed the WAF Event Logging File Enablement feature for the tigera/operator repository, focusing on improving log manageability and observability within Kubernetes environments. He introduced the FelixConfigurationSpec flag, WAFEventLogsFileEnabled, allowing operators to control whether WAF event logs are written to a file. Walter updated the controller logic in Go to automatically derive this flag’s value based on the state of sidecar injection and WAF enablement, streamlining configuration management. This work enhanced operational ergonomics by enabling easier troubleshooting and auditing of WAF events. The feature demonstrated depth in API development and effective integration with Kubernetes configuration workflows.