Description
Hey everyone
We’re excited to announce Kubero v3, a major update that brings significant improvements and introduces a major architectural change: Kubero will be built on NestJS!
Why
Kubero was initially built as a Proof of Concept during Heroku's major outage in 2022. Although there was an improvement in v2 are some parts of the code still the same. And let's be honest: They are not best practice of coding.
Why NestJS?
NestJS is a progressive Node.js framework designed for scalability and maintainability. By leveraging modern development patterns, NestJS helps us bring a more robust, testable, and developer-friendly experience to Kubero. It should be compatible, since it uses Express and PassportJS
Key Benefits of Moving to NestJS
- Modular Architecture: The NestJS framework allows us to better organize and scale Kubero’s features while maintaining cleaner codebases.
- Enhanced Performance**: With built-in support for asynchronous operations and optimized routing, Kubero is now faster and more responsive.
- Improved Developer Experience: NestJS provides a structured, opinionated approach that simplifies development, testing, and maintenance.
- Scalability: Designed with enterprise-grade applications in mind, NestJS enables us to future-proof Kubero for even larger and more complex deployments.
- Extensive Ecosystem: The NestJS ecosystem, with its integration libraries and support, helps us provide powerful new features faster and more efficiently.
All features should be migrated. Even the API should have a backward compatibility.
You can follow the progress in this branch here:
https://github.com/kubero-dev/kubero/pull/619/files
Activity
mms-gianni commentedon Feb 10, 2025
Making some progress here ... still a lot of work to do.
Some routes will change

jfmatth commentedon Feb 12, 2025
Love to see the improvements. I'll have to give v3.0 alpha+ a try 😄
mms-gianni commentedon Feb 12, 2025
Great to hear you @jfmatth . I'll let you know 😉
Hit the 20K mark. And still a lot to do.

mms-gianni commentedon May 26, 2025
Hit the 30K Mark.
Added many tests to have some more confidence:
mms-gianni commentedon Jun 10, 2025
Phuu ... What a ride.
But I'm finally very happy with the result. So I'm preparing the release.
jfmatth commentedon Jun 10, 2025
Very exciting @mms-gianni keep up the great work. Looking forward to it.
mms-gianni commentedon Jun 24, 2025
Simplified User administration in V3
sansavision commentedon Jun 25, 2025
Looks awesome, how much time left do you think?
mms-gianni commentedon Jun 26, 2025
@sansavision To honest its a bit hard to predict.
Initially, I planned to release at the end of April, then moved it to May. I was somewhat dissatisfied with releasing v3 without additional features, focusing only on the new code. It passed all tests, works as expected, and is currently running on the demo.
You can try the image
ghcr.io/kubero-dev/kubero/kubero:v3.0.0-rc.9
. It supports seamless rollforward and rollback, even without upgrading the Operator.To test it, simply change the tag in the Kubero CRD