PPTAM$\eta$: Energy Aware CI/CD Pipeline for Container Based Applications

TL;DR

PPTAMη is an automated CI/CD pipeline that integrates energy measurement into container-based microservice development, enabling developers and researchers to monitor and analyze energy consumption across code changes.

Contribution

It introduces PPTAMη, a novel pipeline that automates energy measurement in GitLab CI for containerized applications, facilitating energy-aware development and research.

Findings

Energy consumption can be effectively measured at each commit.

The pipeline provides actionable insights for developers and researchers.

Energy trends correlate with code changes and refactorings.

Abstract

Modern container-based microservices evolve through rapid deployment cycles, but CI/CD pipelines still rarely measure energy consumption, even though prior work shows that design patterns, code smells and refactorings affect energy efficiency. We present PPTAM$\eta$, an automated pipeline that integrates power and energy measurement into GitLab CI for containerised API systems, coordinating load generation, container monitoring and hardware power probes to collect comparable metrics at each commit. The pipeline makes energy visible to developers, supports version comparison for test engineers and enables trend analysis for researchers. We evaluate PPTAM$\eta$ on a JWT-authenticated API across four commits, collecting performance and energy metrics and summarising the architecture, measurement methodology and validation.