Why OpenShift Interviews Are Different
Unlike generic Kubernetes interviews, OpenShift interviews test your knowledge of the entire Red Hat enterprise ecosystem — from cluster installation (IPI/UPI) and security (RHACS, SCCs) to storage (ODF/Ceph), networking (Routes vs Ingress), and migration (MTV/Forklift). Interviewers expect real-world troubleshooting experience, not just textbook answers.
Top Interview Topics & Sample Questions
1. Architecture & Installation
- Explain the difference between IPI and UPI installation methods
- What are the key components of an OpenShift 4.x control plane?
- How does the Machine Config Operator work?
2. Security & Authentication
- What are Security Context Constraints (SCCs) and how do they differ from Kubernetes PSPs?
- Explain HTPASSWD, LDAP, and Keycloak SSO integration with OpenShift
- How does RHACS provide cluster security? What is a network policy in OpenShift?
3. Migration (VMware to OpenShift)
- Describe the MTV (Migration Toolkit for Virtualization) process
- What is the difference between warm and cold migration?
- How do you validate post-migration workloads?
4. Storage & Networking
- Explain ODF with Ceph — how do you configure a StorageCluster?
- What is the difference between a Route and an Ingress in OpenShift?
- How does the OVN-Kubernetes network plugin work?
5. GitOps & CI/CD
- How would you implement GitOps with ArgoCD on OpenShift?
- Explain OpenShift Pipelines (Tekton) vs Jenkins
Common Mistakes to Avoid
- Answering with vanilla Kubernetes concepts — always use OpenShift-specific terms (DeploymentConfig, BuildConfig, Routes)
- Not mentioning Operators — they are fundamental to OpenShift
- Skipping troubleshooting scenarios (CrashLoopBackOff, ImagePullBackOff)
- Ignoring AIOps / OpenShift AI — increasingly asked in 2026 interviews
Preparation Strategy (4-Week Plan)
- Week 1: Architecture, installation, and core concepts
- Week 2: Security (RHACS, SCCs), authentication, networking
- Week 3: Storage (ODF), migration (MTV), GitOps
- Week 4: Mock interviews, troubleshooting scenarios, AIOps
OCPLocal provides 100+ real interview questions with mock sessions conducted by industry professionals, giving you the confidence to crack any OpenShift interview.