AD258: Introduction to Red Hat JBoss Enterprise Application Platform 8 — Lesson 2: Application Deployments, Configuration Model, Datasources, and Messaging

Learning Objectives

• Explain the structures, services, data, settings, roles, and dependencies governing deployment lifecycle and configuration hierarchy.
• Implement and validate JDBC datasources, resource adapters, and messaging resources using reviewable evidence.
• Evaluate the condition where a change succeeds in one environment but fails elsewhere because inventory, policy, version, or runtime assumptions differ and select a proportionate corrective response.

Detailed Topics

• deployment lifecycle applied to the course scenario, expected platform behavior, dependencies, controls, and evidence.
• configuration hierarchy applied to the course scenario, expected platform behavior, dependencies, controls, and evidence.
• JDBC datasources applied to the course scenario, expected platform behavior, dependencies, controls, and evidence.
• resource adapters applied to the course scenario, expected platform behavior, dependencies, controls, and evidence.
• messaging resources applied to the course scenario, expected platform behavior, dependencies, controls, and evidence.

Instructor Demonstration

The instructor traces an application operations team standing up a managed JBoss EAP 8 environment for enterprise Java workloads. The walkthrough connects navigation, commands, configuration logic, system messages, and evidence captured in the JBoss EAP 8 platform build record, deployment checklist, security baseline, and operations runbook. It also tests the exception where a change succeeds in one environment but fails elsewhere because inventory, policy, version, or runtime assumptions differ.

Hands-On Exercise

Complete a controlled Red Hat exercise covering Application Deployments, Configuration Model, Datasources, and Messaging and preserve the verified result in the JBoss EAP 8 platform build record, deployment checklist, security baseline, and operations runbook.

1. Confirm scope, prerequisites, versions, identities, dependencies, and acceptance criteria.
2. Execute the workflow while recording commands, settings, outputs, events, and system messages.
3. Test normal behavior, one boundary condition, and the stated exception.
4. Document corrections, evidence, ownership, retest criteria, rollback, and handover actions.

Scenario Analysis

• Identify which object, service, policy, setting, or sequence most strongly influences deployment lifecycle.
• Compare two defensible responses and explain technical, security, operational, and support trade-offs.
• Determine how the JBoss EAP 8 platform build record, deployment checklist, security baseline, and operations runbook should be approved, retained, retested, and updated.

Troubleshooting Guidance

Start where expected behavior first differs from the observed result. Check prerequisites, identity, configuration order, version compatibility, connectivity, status, resource limits, and evidence separately. Treat “a change succeeds in one environment but fails elsewhere because inventory, policy, version, or runtime assumptions differ” as a hypothesis until commands, logs, settings, and retest outcomes confirm the cause.

Validation Checklist

• Required platform components, identities, permissions, settings, and dependencies are present.
• The JBoss EAP 8 platform build record, deployment checklist, security baseline, and operations runbook connects each conclusion to objective, reviewable evidence.
• Normal processing, a boundary condition, dependency behavior, and the stated exception were tested.
• Corrections, ownership, retest criteria, rollback, documentation, and operational handover are complete.

Lesson Outcome

Learners can apply Application Deployments, Configuration Model, Datasources, and Messaging, explain the resulting platform behavior, and defend the outcome through the JBoss EAP 8 platform build record, deployment checklist, security baseline, and operations runbook.