Application Modernization and Rabbits

What do rabbits have to do with modernizing a monolith? This talk uses a surprising analogy to show a step-by-step journey from a legacy application to agile microservices.

#1about 3 minutes

Using a rabbit cage analogy for modernization

An analogy of expanding a rabbit cage illustrates the benefits of moving from a monolith to a microservices architecture.

#2about 2 minutes

Exploring the benefits and strategies of modernization

Modernization improves agility, user experience, and costs, with strategies ranging from retiring applications to refactoring them into microservices.

#3about 4 minutes

A 10-year-old Java e-commerce modernization example

A demonstration of a 10-year-old Java EE e-commerce application and the eight-step journey to modernize it into a containerized, microservices-based system.

#4about 3 minutes

Using IBM tools to containerize a monolith

The IBM Cloud Transformation Advisor and WebSphere Application Migration Toolkit help automate the process of moving a legacy Java application into a container.

#5about 3 minutes

Decoupling the UI and migrating to Open Liberty

The application's front-end is separated from the back-end using REST APIs, and the runtime is migrated from WebSphere to the open-source Open Liberty.

#6about 6 minutes

Applying the Strangler Pattern for microservices

The Strangler Fig Pattern is used to incrementally replace parts of the monolith, starting with the catalog service identified by the Mono2Micro tool.

#7about 3 minutes

Implementing an event-driven architecture with Kafka

Apache Kafka is used for asynchronous communication between the new catalog microservice and the remaining monolith to avoid tight coupling and synchronous calls.

#8about 3 minutes

Improving performance with reactive programming and Quarkus

Adopting reactive programming with Quarkus and the OpenJ9 JVM significantly improves application response time and memory efficiency for new microservices.

#9about 5 minutes

Modernizing the user interface with micro frontends

The monolithic front-end is broken down into independent micro frontends using Vue.js and Single SPA to enable separate deployment and development cycles.

#10about 2 minutes