Java Spring Boot — Lesson 4: Security, Testing, Actuator, Resilience, Containers, and Deployment

Technical Scope

• Spring Security filter chain, authentication, authorization, JWT, and method security
• unit, slice, integration, repository, controller, and Testcontainers testing
• Actuator health, metrics, tracing, logging, and alert readiness
• resilience patterns, Docker images, configuration, deployment, rollback, and runbook

Instructor Demonstration

Demonstrate Spring Security filter chain, authentication, authorization, JWT, and method security within a secure order-management REST service built with Spring Boot, persisted transactionally, tested across layers, observed in production, and packaged for container deployment, then capture the exact configuration, command, transaction, report, trace, or code evidence that proves the expected result.

Applied Workshop

Implement a controlled workshop covering unit, slice, integration, repository, controller, and Testcontainers testing and Actuator health, metrics, tracing, logging, and alert readiness, then test a failure, exception, or business-control scenario involving resilience patterns, Docker images, configuration, deployment, rollback, and runbook.

1. Confirm the environment, identities, data, dependencies, controls, and expected result.
2. Complete the product-specific configuration, development, analysis, or business-process task.
3. Capture commands, configuration, output, logs, transactions, reports, or test evidence.
4. Explain the operational, security, performance, data-quality, or business trade-off.

Validation Standard

The Security, Testing, Actuator, Resilience, Containers, and Deployment result must be reproducible, traceable to approved inputs, and consistent with expected Oracle product or business-process behavior.

• The intended target, scope, and ownership are verified.
• The result is supported by reproducible evidence and expected-value checks.
• Security, performance, reliability, data quality, and support impact are reviewed.
• Unexpected behavior is investigated before acceptance or release.

Failure Analysis

Diagnose issues in Spring Security filter chain, authentication, authorization, JWT, and method security, unit, slice, integration, repository, controller, and Testcontainers testing, Actuator health, metrics, tracing, logging, and alert readiness, or resilience patterns, Docker images, configuration, deployment, rollback, and runbook without making an unverified production change.

Learners isolate the smallest proven cause, apply a reversible correction, rerun validation, and record the preventive action.

Practical Outcome

Complete a validated implementation or analysis for Security, Testing, Actuator, Resilience, Containers, and Deployment and defend the result with documented evidence.