RH065 – Running Containers with Red Hat Technical Overview — Lesson 2: Podman Lifecycle, Rootless Containers, Networking, Storage, and Pods

Learning Objectives

• Configure the main services, objects, and controls involved in Podman, rootless containers, and networking.
• Apply storage and pods while preserving reviewable technical evidence.
• Recognize and correct the risk where a valid command creates the wrong outcome because variables, identity, or sequencing are incorrect.

Detailed Topics

• Podman: apply the concept to a Linux operations group introducing secure daemonless container workflows on RHEL, record the relevant settings or decisions, and explain the operational consequence.
• rootless containers: apply the concept to a Linux operations group introducing secure daemonless container workflows on RHEL, record the relevant settings or decisions, and explain the operational consequence.
• networking: apply the concept to a Linux operations group introducing secure daemonless container workflows on RHEL, record the relevant settings or decisions, and explain the operational consequence.
• storage: apply the concept to a Linux operations group introducing secure daemonless container workflows on RHEL, record the relevant settings or decisions, and explain the operational consequence.
• pods: apply the concept to a Linux operations group introducing secure daemonless container workflows on RHEL, record the relevant settings or decisions, and explain the operational consequence.

Instructor Demonstration

The instructor demonstrates podman lifecycle, rootless containers, networking, storage, and pods by tracing the relevant architecture, commands, configuration, messages, and evidence. The walkthrough highlights how a valid command creates the wrong outcome because variables, identity, or sequencing are incorrect and shows how to isolate the cause without masking dependent issues.

Hands-On Exercise

Implement the core workflow and compare expected versus observed behavior for Podman Lifecycle, Rootless Containers, Networking, Storage, and Pods. Add verified outcomes to the container tooling assessment, operational command guide, security checklist, and adoption plan.

1. Confirm the scope, versions, access, dependencies, and success criteria.
2. Perform the workflow while recording commands, settings, output, and platform events.
3. Test one expected case and one controlled exception specific to this lesson.
4. Retest the correction and document ownership, rollback, and follow-up actions.

Scenario Analysis

• Identify which dependency most strongly influences Podman in the stated scenario.
• Compare two approaches for storage and explain the security, reliability, and support trade-offs.
• Decide what evidence must be retained in the container tooling assessment, operational command guide, security checklist, and adoption plan before operational acceptance.

Troubleshooting Guidance

Begin with the first observable difference from the expected result. Check configuration, permissions, sequencing, and functional behavior separately, then correlate logs, events, commands, and configuration history. Do not accept the initial assumption that a valid command creates the wrong outcome because variables, identity, or sequencing are incorrect; confirm the cause with a reproducible retest.

Validation Checklist

• The required configuration, permissions, sequencing, and functional behavior were checked and recorded.
• The normal path and a course-specific exception were tested.
• The container tooling assessment, operational command guide, security checklist, and adoption plan links conclusions to commands, configuration, logs, or other objective evidence.
• Corrective actions, rollback steps, ownership, and handover notes are complete.

Lesson Outcome

Learners can apply Podman Lifecycle, Rootless Containers, Networking, Storage, and Pods, explain the observed Red Hat platform behavior, and support the result with a reviewable container tooling assessment, operational command guide, security checklist, and adoption plan.