Designing Deployment Strategies like Blue/Green, Canary, and Feature Flags Optimized for Large-Scale, High-Traffic Systems
DOI:
https://doi.org/10.63282/3050-9262.IJAIDSML-V7I1P123Keywords:
Progressive Delivery, Blue/Green, Canary Release, Feature Flags, SLO, Error Budget, Service Mesh, Deployment Safety, Rollback Automation, High-Traffic SystemsAbstract
Modern large-scale, high-traffic systems demand deployment strategies that minimize user impact while enabling rapid and frequent releases. Progressive delivery techniques such as blue/green deployments, canary releases, and feature flags have emerged as industry-standard practices to reduce deployment risk while preserving velocity. Prior research and industry reports show that staged exposure and fast rollback mechanisms significantly reduce change failure rates and improve recovery times in distributed systems [1], [5]. This paper presents a metrics-driven framework for designing and operating these deployment strategies in production-grade systems. We integrate service-level objectives (SLOs) [3], error budgets [4], and DORA metrics [5] with automated traffic shaping, observability, and governance. Through real-world-inspired case studies, we demonstrate how progressive delivery reduces blast radius, improves mean time to recovery (MTTR), and enables safe experimentation at scale. Finally, we discuss future directions including AI-assisted rollout optimization and policy-as-code deployment governance.
References
[1] Google, “Release Engineering,” Site Reliability Engineering (SRE) Book, 2016.
[2] Google, “Canarying Releases,” SRE Workbook, 2018.
[3] Google, “Service Level Objectives,” SRE Book, 2016.
[4] S. Thurgood et al., “Implementing SLOs,” SRE Workbook, 2018.
[5] N. Forsgren, J. Humble, and G. Kim, “Accelerate: State of DevOps 2019,” DORA, 2019.
[6] M. Fowler, “Feature Toggles (Feature Flags),” 2017.
[7] Kubernetes, “Deployments,” kubernetes.io Documentation, updated 2025.
[8] Argo Project, “Argo Rollouts,” 2025.
[9] Argo Rollouts Docs, “Canary Deployment Strategy,” 2025.
[10] Argo Rollouts Docs, “BlueGreen Deployment Strategy,” 2025.
[11] Istio, “Traffic Shifting,” Istio Documentation, 2025.
[12] Envoy Proxy, “Traffic Shifting/Splitting,” Envoy Documentation, 2025.
[13] Spinnaker, “Using Spinnaker for Automated Canary Analysis,” 2021.
[14] Netflix Technology Blog, “Automated Canary Analysis at Netflix with Kayenta,” 2018.
[15] Google Cloud Blog, “Introducing Kayenta,” 2018.
[16] Microsoft, “Safe Deployment Practices,” learn.microsoft.com, 2022.
[17] Microsoft Azure Blog, “Advancing Safe Deployment Practices,” 2020.
[18] Microsoft, “Safe Deployments,” Azure Well-Architected Framework, 2025.
[19] LaunchDarkly Docs, “Kill switch flags,” 2025.
[20] T. Rahman et al., “Exploring Influence of Feature Toggles on Code Complexity,” ACM, 2024.
