SonarQube Architecture and Workflow Overview
This article explains SonarQube's main components—including server processes, database, plugins, and scanners—and describes the end‑to‑end workflow that integrates code analysis into development, CI/CD pipelines, reporting, and operational monitoring.
Component Overview
1. SonarQube server: consists of three programs—WebServer (configuration and management), SearchServer (search results for the UI), and ComputeEngineServer (analysis service that stores results in the database).
2. SonarQube database: stores configuration data.
3. SonarQube plugins: extend functionality.
4. SonarScanner: code scanning tool; multiple instances can be used.
Workflow
The diagram shows how SonarQube integrates with other ALM tools. Developers write code in an IDE and run local analysis with SonarLint. Code is committed to SCM (Git, SVN, TFVC, etc.). The CI server triggers a build and runs the SonarScanner for analysis. The analysis report is sent to the SonarQube server, which processes and stores results in its database and displays them in the UI. Developers review, comment, and address issues via the UI to reduce technical debt. Managers receive reports, and Operations use the API to configure and extract data and monitor the server via JMX.
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