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Course Description
Develop microservice-based applications in Java EE with MicroProfile and OpenShift
Building on Red Hat Application Development I: Programming in Java EE (AD183), the introductory course for Java EE application development, Red Hat Application Development II: Implementing Microservice Architectures (DO283) emphasizes learning architectural principles and implementing microservices in Java EE, primarily based on MicroProfile with WildFly Swarm and OpenShift.
You will build on Java EE application development fundamentals and focus on how to develop, monitor, test, and deploy modern microservices applications. Many enterprises are looking for a way to take advantage of cloud-native architectures, but many do not know the best way to go about it. These enterprises have monolithic applications written in Java Enterprise Edition (JEE).
Objectives
- Deploy and monitor microservice-based applications.
- Implement a microservice with MicroProfile.
- Implement unit and integration tests for microservices.
- Use the config specification to inject data into a microservice.
- Create a health check for a microservice.
- Implement fault tolerance in a microservice.
- Secure a microservice using the JSON Web Token (JWT) specification.
Audience
This course is designed for Java developers.
Prerequisites
- Attend Introduction to OpenShift Applications (DO101) or demonstrate equivalent experience
- Attend Red Hat Application Development I: Programming in Java EE (AD183) or demonstrate equivalent experience
- Be proficient in using an integrated development environment such as Red Hat® Developer Studio or Eclipse
- Experience with Maven is recommended, but not required
Content
Outline for this course
Describe microservice architectures
Describe components and patterns of microservice-based application architectures.
Deploy microservice-based applications
- Deploy portions of the course case study applications on an OpenShift cluster.
Implement a microservice with MicroProfile
- Describe the specifications in MicroProfile, implement a microservice with some of the specifications, and deploy it to an OpenShift cluster.
Test microservices
- Implement unit and integration tests for microservices.
Inject configuration data into a microservice
- Inject configuration data from an external source into a microservice.
Create application health checks
- Create a health check for a microservice.
Implement fault tolerance
- Implement fault tolerance in a microservice architecture.
Develop an API gateway
- Describe the API gateway pattern and develop an API gateway for a series of microservices.
Secure microservices with JWT
- Secure a microservice using the JSON Web Token specification.
Monitor microservices
- Monitor the operation of a microservice using metrics, distributed tracing, and log aggregation.