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A Storage Hack for Bringing Stateful Apps to Kubernetes: Data That Follows Applications

Kubernetes, the open-source container orchestration system created by Google, is one of the most adopted technologies of the last decade. It is clear everyone loves this open-source platform, as the double-digit growth in adoption rate clearly demonstrates.

In fact, the Cloud Native Computing Foundation (CNCF) found that in 2019 84% ran Kubernetes containers in production, double from two years prior. This growth in adoption is unlikely to stop any time soon, seeing how Kubernetes is an efficient way to manage containers at scale, which translates into lower costs and increased cloud flexibility.

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Kubernetes and Running Stateful Workloads

Introduction

Kubernetes, as we know, is currently the most popular container orchestration tool used to scale, deploy, and manage containerized applications. In its initial days, Kubernetes was mostly used to run web-based stateless services.

However if you ever wanted to run stateful services like a database, you either had to run them in virtual machines (VM) or as a cloud-service. But with the rise of the kubernetes based hybrid-cloud, many users want to deploy stateful workloads also on top of kubernetes based clusters.

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Are You 12-Factor Application Ready?

The 12-Factor Application principles for flexible applications.

There are a lot of frameworks in app development, but not all of them are tailored for today’s cloud environment. Many of them lack modularity and flexibility; some don’t even leverage the benefits of using cloud computing. The 12-Factor application principles are designed specifically for modern, containerized cloud environments from the beginning. Each component is tailored to the flexibility of containers and cloud deployment, all while creating a standard for every team member—and third-party developers— to follow.

At the same time, the 12-Factor app creates a more straightforward approach to developing a cloud app with microservices. It takes into account the need for a positive user experience and how virtual environments can be utilized for higher availability.