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Code Quality Overview

SonarQube helps teams check code quality and security issues as part of normal development and CI/CD work. It is useful when you want automated feedback on bugs, vulnerabilities, code smells, duplication, and quality gates.

SonarQube is one option in a much larger market — this section also maps the surrounding ecosystem of open-source linters, security scanners, and paid SaaS platforms so you can combine them deliberately.

What This Section Covers

  • Installing SonarQube on Ubuntu
  • Connecting SonarQube to PostgreSQL
  • Integrating scans into Jenkins pipelines
  • Open-source tools and libraries — ruff, ESLint, Checkstyle, SpotBugs, Semgrep, Gitleaks, Trivy, JaCoCo, and how to wire them into CI
  • Paid and SaaS platforms — SonarCloud, GitHub Advanced Security (CodeQL), Snyk, Codacy, Qlty, DeepSource, Codecov, Veracode, Checkmarx

Why Teams Use SonarQube

  • Finds quality and security issues early
  • Supports many programming languages
  • Adds quality gates to pull request and pipeline workflows
  • Makes technical debt easier to track over time
  1. Install SonarQube
  2. Configure the database and service
  3. Connect Jenkins
  4. Add analysis to a pipeline
  5. Enforce a quality gate

Tip

For production use, plan for enough memory, persistent storage, backups, and proper access control from the start.