DevOps Intermediate

What is SonarQube?

A platform for continuous code quality inspection that detects bugs, vulnerabilities, and code smells through static analysis.

SonarQube analyzes source code for quality issues across 30+ programming languages. It identifies bugs, security vulnerabilities, code smells (maintainability issues), duplications, and test coverage gaps.

Quality Gates define pass/fail criteria for builds. Integration with CI/CD pipelines blocks deployments that do not meet quality standards. SonarCloud offers a hosted version for open-source projects.

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Container Registry

A storage and distribution service for container images, similar to a package repository but for Docker images.

A structured analysis conducted after an incident to understand what happened, why, and how to prevent recurrence — without assigning blame.

A popular log management platform combining Elasticsearch (search), Logstash (processing), and Kibana (visualization).

A tool for defining and running multi-container Docker applications using a YAML configuration file.

Kubernetes Secret

A Kubernetes object for storing sensitive data like passwords, tokens, and certificates, with base64 encoding and optional encryption at rest.

Immutable Infrastructure

An approach where servers are never modified after deployment — changes require building and deploying entirely new server instances.

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