Enterprise organizations are increasingly modernizing OpenStack-based private cloud environments to adopt Kubernetes and OpenShift platforms for cloud-native application delivery. However, migrating workloads from OpenStack to OpenShift introduces challenges related to application dependencies, networking, storage, security, workload compatibility, operational processes, and infrastructure governance. This paper proposes a structured migration framework for transforming OpenStack cloud infrastructure into an OpenShift-based enterprise cloud platform. The framework covers workload discovery and classification, dependency assessment, application containerization, storage and networking migration, identity and security integration, CI/CD transformation, operational monitoring, and workload validation. The proposed approach uses phased migration strategies to reduce service disruption and operational risk while enabling organizations to gradually transition from traditional infrastructure-oriented cloud operations to Kubernetes-based platform engineering. The framework also addresses coexistence between OpenStack and OpenShift during the migration period and provides criteria for workload prioritization, migration readiness, validation, rollback, and post-migration optimization. The proposed methodology provides enterprises with a practical approach for modernizing OpenStack environments while improving application portability, deployment agility, scalability, and operational consistency.

OpenStack, OpenShift, Kubernetes, Cloud Modernization, Cloud Migration, Enterprise Cloud, Containerization, Platform Engineering, Infrastructure Automation, Workload Migration, Hybrid Cloud, DevOps

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