Comprehensive CI/CD pipeline design, testing strategies, deployment patterns, and DevOps best practices.

• Covers five core pipeline stages: build, test, security scanning, staging deployment, and production deployment with examples for each
• Includes four deployment strategies: blue-green, canary, rolling, and feature flags for zero-downtime releases and gradual rollouts
• Provides testing pyramid guidance with unit, integration, and end-to-end test layers, plus parallelization and flaky test handling techniques
• Addresses security throughout the pipeline: secrets management, SAST/DAST scanning, dependency checking, and access controls
• Covers environment management, infrastructure as code, caching optimization, monitoring metrics, and rollback procedures