WeAreDevelopers Logo WeAreDevelopers
Sign in
For You LIVE
WeAreDevelopers LIVE • Mar 23, 2021

Application Modernization and Rabbits

Niklas Heidloff

Managing a legacy monolith is like keeping a growing rabbit population in a crowded cage. Discover how to iteratively untangle systems into event-driven microservices without boiling the ocean.

Pause
Mute Enter Fullscreen
#1 about 3 min

Application modernization explained through rabbit habitats

Expanding rabbit cages into connected hutches illustrates the agility and efficiency of migrating from monoliths to microservices architectures.

#2 about 3 min

Five core strategies for handling legacy applications

Retiring, migrating, or refactoring older monolithic applications balances cost with the need for competitive software delivery.

#3 about 2 min

Comparing a legacy e-commerce application with modernized architecture

Side-by-side demonstrations of a monolithic Dojo toolkit application and a fully containerized microservices structure clarify the transition path.

#4 about 3 min

Taking incremental steps in an application modernization journey

Breaking a massive architectural overhaul into smaller verifiable phases limits operational risk and proves immediate value.

#5 about 4 min

Migrating monolithic workloads from virtual machines to containers

Tools like cloud transformation advisor automate the generation of container configurations and identify necessary code updates for modern runtimes.

#6 about 3 min

Decoupling interfaces and upgrading to open source application runtimes

Separating interface logic using the backend for frontend pattern and adopting community-supported software reduces licensing costs and simplifies scaling.

#7 about 3 min

Adopting the strangler pattern for initial microservices extraction

Incrementally peeling off high-traffic user flows from legacy systems preserves core application stability while scaling specific functions.

#8 about 4 min

Using runtime analysis tools to identify optimal microservice boundaries

Analyzing method invocation chains helps isolate standalone technical domains and prevents the creation of brittle distributed monoliths.

#9 about 3 min

Implementing event-driven architectures to decouple remote service components

Replacing synchronous rest calls with asynchronous messaging and database caching ensures separate architectural domains can function independently.

#10 about 4 min

Selecting efficient java virtual machines and reactive application frameworks

Adopting memory-optimized engines and reactive endpoints drastically reduces container resource consumption and improves high-volume request handling.

#11 about 5 min

Decomposing monolithic user interfaces into responsive micro front ends

Federated interface architectures allow individual technical teams to deploy specific graphical components without blocking broader application releases.

#12 about 2 min

Cloning and deploying the modernized application architecture locally

Accessing sample scripts and open source repositories jumpstarts practical exploration of containerized deployment models.

Matching moments

5:06 min

Modernizing legacy applications through proactive leadership

Babette Wagner Babette Wagner · Coffee With Developers

5:02 min

Transforming legacy monoliths into modern software systems

Henning Schwentner · LIVE

1:43 min

Incremental frontend modernization avoiding full rewrites

Alexander Günsche Alexander Günsche · LIVE

44 sec

Modernizing a legacy Java ERP monolithic architecture

Simon Martinelli Simon Martinelli · World Congress 2026 Europe

1:32 min

Overcoming modernization challenges in aging monolithic codebases

Igor Minar Igor Minar +1 · World Congress 2025

1:59 min

Transforming to a cloud-native modular application architecture

Annette Schelten Annette Schelten +1 · World Congress 2025

More from WeAreDevelopers LIVE

WeAreDevelopers LIVE - Is CSS Catching Up to Flash? thumbnail
1:03:33
10 days ago

WeAreDevelopers LIVE - Is CSS Catching Up to Flash?

Chris Heilmann, Daniel Cranney, Bramus Van Damme

WeAreDevelopers LIVE - Project Chopin: Make Your Team and Agents Play Along thumbnail
1:21:17
17 days ago

WeAreDevelopers LIVE - Project Chopin: Make Your Team and Agents Play Along

Chris Heilmann, Daniel Cranney, Krzysztof Cieślak

Fake or News - AI Toothbrushes, Carrier Pigeon Tech & Life on Mars - Krzysztof Cieślak thumbnail
4:23
18 days ago

Fake or News - AI Toothbrushes, Carrier Pigeon Tech & Life on Mars - Krzysztof Cieślak

Chris Heilmann, Daniel Cranney

WeAreDevelopers LIVE - Open Source Agent Toolkits thumbnail
1:00:38
24 days ago

WeAreDevelopers LIVE - Open Source Agent Toolkits

Chris Heilmann, Daniel Cranney, Eddie Jaoude

Fake or News - AI Music Detectors, Translating Ancient Languages & Tiny Heads in Teslas - Eddie Jaoude thumbnail
6:16
25 days ago

Fake or News - AI Music Detectors, Translating Ancient Languages & Tiny Heads in Teslas - Eddie Jaoude

Chris Heilmann, Daniel Cranney

Fake or News: AI Agents Hire Each Other, Spider-Man Ads in Cars & RAM Thieves - Marc Plogas thumbnail
5:46
about 1 month ago

Fake or News: AI Agents Hire Each Other, Spider-Man Ads in Cars & RAM Thieves - Marc Plogas

Chris Heilmann, Daniel Cranney, Marc Plogas

Related videos

How to Destroy a Monolith? thumbnail
26:45
World Congress 2025 • about 1 year ago

How to Destroy a Monolith?

Babette Wagner

Goodbye Microservices, Hello Self-Contained Systems thumbnail
14:08
World Congress 2026 Europe • 3 months ago

Goodbye Microservices, Hello Self-Contained Systems

Simon Martinelli

2021: Familiar APIs on Kickass Runtimes #slideless thumbnail
37:55
LIVE • over 5 years ago

2021: Familiar APIs on Kickass Runtimes #slideless

Adam Bien

Seven Myths, Three Reasons, One Goal thumbnail
46:48
World Congress 2021 • about 5 years ago

Seven Myths, Three Reasons, One Goal

Stefan Priebsch

Building high performance and scalable architectures for enterprises thumbnail
58:23
LIVE • about 6 years ago

Building high performance and scalable architectures for enterprises

Luka Samaržija, Ivan Sokol

Web-Fragments: incremental micro-frontends migration approach for enterprise thumbnail
32:17
World Congress 2025 • about 1 year ago

Web-Fragments: incremental micro-frontends migration approach for enterprise

Igor Minar, Natalia Venditto

Related articles

From learning to earning

Jobs that call for the skills explored in this talk.