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In this article, we covered a comprehensive range of topics related to OpenShift and its foundation on Kubernetes technology. OpenShift enhances Kubernetes by providing an abstraction layer that simplifies the management of containerized applications. Below is a summary of the key areas we explored:

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1. Installation Methods

We began with how to install OpenShift using CodeReady Containers (now known as OpenShift Local), discussing both the free sandbox option and production-ready environments using Azure as an example. Although similar concepts apply across various cloud providers, we also touched on setups with bare metal and virtualization. These scenarios were not covered in depth due to limited hands-on data center opportunities, but if you have server hardware at home, you are encouraged to experiment with these methods. The automated installation process was highlighted, demonstrating how prerequisites are checked and the necessary code is executed for a streamlined setup.

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2. Projects, Users, and Namespaces

We explored the concept of projects within OpenShift—equivalent to Kubernetes namespaces—and discussed user configurations. Mastering these elements is essential for effective resource management within the platform.

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3. Build and Deployment Processes

This section examined the building and deployment workflows, drawing parallels with standard Kubernetes practices. For example, while Kubernetes uses ingress, OpenShift provides routes, which many users find simpler to use. Additionally, we reviewed essential networking components, including services and load balancers, and explained how routes compare to native load balancers in Kubernetes.

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4. Storage

We discussed the Container Storage Interface (CSI) in the context of both Kubernetes and OpenShift. The article outlined various approaches to storage management, including setting quotas, limits, and resource requests for CPU and memory allocation.

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5. Security and RBAC

Security was also a major focus, with an emphasis on role-based access control (RBAC) as a cornerstone in both Kubernetes and OpenShift environments. Establishing robust security practices is crucial for maintaining the integrity and resilience of modern, distributed systems.
With these fundamentals, you now have a solid understanding of core concepts applicable not only to OpenShift but also to broader Kubernetes environments.
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