DO274: Introduction to Event-Driven Ansible — Lesson 3: Decision Environments, Event Streams, Controller Integration, and Workflow Actions

Learning Objectives

• Evaluate security, resilience, integration, and exception handling for decision environments, event streams, and controller integration.
• Apply workflow actions and credentials while preserving reviewable technical evidence.
• Recognize and correct the risk where the design works normally but fails under scale, dependency loss, policy enforcement, or integration delay.

Detailed Topics

• decision environments: apply the concept to an operations team automating responses to monitoring alerts and infrastructure events, record the relevant settings or decisions, and explain the operational consequence.
• event streams: apply the concept to an operations team automating responses to monitoring alerts and infrastructure events, record the relevant settings or decisions, and explain the operational consequence.
• controller integration: apply the concept to an operations team automating responses to monitoring alerts and infrastructure events, record the relevant settings or decisions, and explain the operational consequence.
• workflow actions: apply the concept to an operations team automating responses to monitoring alerts and infrastructure events, record the relevant settings or decisions, and explain the operational consequence.
• credentials: apply the concept to an operations team automating responses to monitoring alerts and infrastructure events, record the relevant settings or decisions, and explain the operational consequence.

Instructor Demonstration

The instructor demonstrates decision environments, event streams, controller integration, and workflow actions by tracing the relevant architecture, commands, configuration, messages, and evidence. The walkthrough highlights how the design works normally but fails under scale, dependency loss, policy enforcement, or integration delay and shows how to isolate the cause without masking dependent issues.

Hands-On Exercise

Introduce a controlled boundary condition and test recovery for Decision Environments, Event Streams, Controller Integration, and Workflow Actions. Add verified outcomes to the event source integration, tested Ansible Rulebooks, response workflow evidence, and operations guide.

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 decision environments in the stated scenario.
• Compare two approaches for workflow actions and explain the security, reliability, and support trade-offs.
• Decide what evidence must be retained in the event source integration, tested Ansible Rulebooks, response workflow evidence, and operations guide before operational acceptance.

Troubleshooting Guidance

Begin with the first observable difference from the expected result. Check security, integration, boundary conditions, and resilience separately, then correlate logs, events, commands, and configuration history. Do not accept the initial assumption that the design works normally but fails under scale, dependency loss, policy enforcement, or integration delay; confirm the cause with a reproducible retest.

Validation Checklist

• The required security, integration, boundary conditions, and resilience were checked and recorded.
• The normal path and a course-specific exception were tested.
• The event source integration, tested Ansible Rulebooks, response workflow evidence, and operations guide 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 Decision Environments, Event Streams, Controller Integration, and Workflow Actions, explain the observed Red Hat platform behavior, and support the result with a reviewable event source integration, tested Ansible Rulebooks, response workflow evidence, and operations guide.