Summary

Implement an independent process to monitor CRIO container log file rotations that can be used to publish total_bytes_logged metrics in prometheus format. The motivation for moving away from a Ruby implementation is Ruby is not efficient in tracking file rotations. Also collectors can change over time so making metric computation outside of fluentd for logging total_bytes_logged is more preferred.

Acceptance Criteria

• Alternate entrypoint into CLO that runs the exporter process
• Integrated into CLO deployment of fluentd as an additional container
• Exposed metric endpoint that is consumable by Prometheus
• Exposed metric of total_bytes_logged
• Documented metric

Notes

• Exporter process being added to CLO as a workaround to the overhead in setting up an additional container process