DO016 – Red Hat OpenShift Virtualization Technical Overview — Lesson 2: Virtual Machine Creation, Lifecycle, Compute, Guest Access, and Monitoring

Learning Objectives

• Configure the principal services, objects, workflows, and controls for VM creation, VM lifecycle, and compute.
• Apply guest access and monitoring while preserving reviewable technical evidence.
• Recognize and correct the condition where a valid change produces the wrong outcome because variables, permissions, mapping, or sequencing are incorrect.

Detailed Topics

• VM creation: apply the concept to the course scenario, identify dependencies and controls, and record objective evidence of the result.
• VM lifecycle: apply the concept to the course scenario, identify dependencies and controls, and record objective evidence of the result.
• compute: apply the concept to the course scenario, identify dependencies and controls, and record objective evidence of the result.
• guest access: apply the concept to the course scenario, identify dependencies and controls, and record objective evidence of the result.
• monitoring: apply the concept to the course scenario, identify dependencies and controls, and record objective evidence of the result.

Instructor Demonstration

The instructor demonstrates virtual machine creation, lifecycle, compute, guest access, and monitoring by tracing architecture, commands, configuration, system messages, and evidence. The walkthrough tests how a valid change produces the wrong outcome because variables, permissions, mapping, or sequencing are incorrect and explains how to isolate the cause without masking related issues.

Hands-On Exercise

Implement the core workflow for Virtual Machine Creation, Lifecycle, Compute, Guest Access, and Monitoring and add the verified result to the virtualization capability assessment, VM architecture map, migration considerations, and next-step roadmap.

1. Confirm scope, versions, access, dependencies, assumptions, and acceptance criteria.
2. Perform the workflow while recording commands, configuration, output, events, and decisions.
3. Test the normal path and one course-specific exception or boundary condition.
4. Retest the correction and document rollback, ownership, and follow-up actions.

Scenario Analysis

• Identify which dependency most strongly influences VM creation in the stated scenario.
• Compare two approaches for guest access and explain the security, reliability, performance, and support trade-offs.
• Decide what evidence must be retained in the virtualization capability assessment, VM architecture map, migration considerations, and next-step roadmap before operational acceptance.

Troubleshooting Guidance

Begin with the first observable difference from the expected result. Check configuration, permissions, sequence, connectivity, and functional behavior separately, then correlate logs, events, commands, metrics, and configuration history. Treat the assumption that a valid change produces the wrong outcome because variables, permissions, mapping, or sequencing are incorrect as a hypothesis until a reproducible retest confirms the cause.

Validation Checklist

• The required configuration, permissions, sequence, connectivity, and functional behavior were checked and recorded.
• The normal path and a course-specific exception were tested.
• The virtualization capability assessment, VM architecture map, migration considerations, and next-step roadmap links conclusions to commands, configuration, logs, metrics, or other objective evidence.
• Corrective actions, rollback, ownership, and handover notes are complete.

Lesson Outcome

Learners can apply Virtual Machine Creation, Lifecycle, Compute, Guest Access, and Monitoring, explain the observed platform behavior, and support the result with a reviewable virtualization capability assessment, VM architecture map, migration considerations, and next-step roadmap.