Building a Production-Ready SonarQube Scanner Plugin for Devtron CI/CD

This article details how to build a custom, production-ready SonarQube scanner plugin for Devtron CI/CD that works across multiple languages (Java, Python, JS, TS, Go), enforces quality gates to block failed deployments, and ensures secure token handling. The architecture separates the sonar-scanner binary (in a container image) from the runtime shell script logic, enabling script updates without image rebuilds. Key implementation details include Alpine container setup with proper dependencies, common gotchas, and a reusable design requiring minimal per-app configuration.