Modern CI/CD on AWS focuses on building fast, secure, and reliable deployment pipelines using services like CodePipeline, CodeBuild, and CodeDeploy. A production-ready pipeline should include multiple gated stages—source, build, automated unit and integration testing, security scanning, staging deployment, manual approval, and production release—supported by monitoring and automatic rollback. Best practices include embedding security checks early, using blue/green deployments for zero downtime, enforcing least-privilege IAM and network isolation, and sending targeted notifications. Because the pipeline itself is a critical production system, it should be secured, monitored, and managed with the same rigor as application code to ensure predictable, low-risk releases.

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