What is OpenShift clusters? - RHEL OS https://www.hacktheforum.com/rhel-os/what-is-openshift-clusters/ Hack The Forum Discussion Board en Thu, 16 Apr 2026 10:19:38 +0000 wpForo 60 What is OpenShift clusters? https://www.hacktheforum.com/rhel-os/what-is-openshift-clusters/#post-19895 Sun, 19 Oct 2025 11:44:46 +0000 An OpenShift cluster is a managed environment that runs containerized applications using Kubernetes at its core, with enterprise-grade tools and services provided by Red Hat to support deployment, scaling, monitoring, and security.

Red Hat OpenShift is a Kubernetes platform built for enterprises. It provides all the capabilities of Kubernetes (the open-source container orchestration system) but with:

  • A built-in developer-friendly web UI

  • Enterprise support and lifecycle management

  • Integrated CI/CD, logging, and monitoring

  • Security hardening (like SELinux, RBAC, OAuth, etc.)

  • Tools for managing both infrastructure and applications

A cluster is a group of machines (physical or virtual), organized to work together, where:

  • Some machines are control plane nodes (also called masters)

  • Some are worker nodes, where applications actually run

Each cluster includes:

Component Role
Control Plane Manages the overall cluster (scheduler, API server, etcd DB)
Worker Nodes Run application workloads (pods, services, containers)
etcd A distributed key-value store to keep Kubernetes state
Router / Ingress Routes external traffic to services inside the cluster
Image Registry Stores container images inside the cluster
Monitoring & Logging Collects metrics and logs from workloads and nodes

 

An OpenShift cluster is:

  • A Kubernetes-based platform enhanced by Red Hat

  • A group of machines that work together to run, scale, and manage containerized applications

  • Designed to help developers and operations teams build, deploy, and run applications securely and efficiently

  • Available on premises, in the cloud, or hybrid environments

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