How to Scale your Legacy Applications with Kubernetes

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Photo by Lorenzo Herrera on Unsplash


Legacy applications

A legacy application or system is “An information system that may be based on outdated technologies, but is critical to day-to-day operations. Replacing legacy applications and systems with systems based on new and different technologies is one of the information systems (IS) professional’s most significant challenges. As enterprises upgrade or change their technologies, they must ensure compatibility with old systems and data formats that are still in use“ —


How to scale a legacy application

“A divide-and-conquer algorithm recursively breaks down a problem into two or more sub-problems of the same or related type, until these become simple enough to be solved directly. The solutions to the sub-problems are then combined to give a solution to the original problem” —

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Technical solution — Kubernetes

Solution 1 — Modern technology

Solution 2 — Kubernetes

“Kubernetes, also known as K8s, is an open-source system for automating deployment, scaling, and management of containerized applications.” —

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If you have a similar problem, but you can write your application from scratch, go for modern technologies such as Apache Spark. If you cannot, use Kubernetes instead.


Senior Data Engineer/Scientist at TomTom. MSc in Telecommunications Engineer, Ph.D. in Computer Science.

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