Re: Konflux: What is the right time?

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On Sat, Mar 8, 2025, at 2:50 AM, Richard W.M. Jones wrote:

> I didn't watch his talk, but this all sounds very vague.  And that the
> fact that it's "container first" and an internal project first is
> worrying too. 

One very important thing to understand here is that Konflux is built on *top* of https://tekton.dev/ which itself is built on top of Kubernetes https://kubernetes.io/ which are well documented and established FOSS projects used by multiple organizations, with a wealth of knowledge and tooling built on top of both of them. Which is not true of Koji.

Just one example: In the past we've hit issues where some RPMs take a lot more CPU/RAM to build than others.

In Kubernetes, projects like https://github.com/kubernetes/autoscaler/tree/9f87b78df0f1d6e142234bb32e8acbd71295585a/vertical-pod-autoscaler exist to automatically track and scale the requested resources for pods (containers) based on historical or inferred usage. Because Tekton builds (tasks) are just pods ( https://tekton.dev/docs/pipelines/podtemplates/ ) these techniques work for them.

But for Koji, there's no such ecosystem, and only ad-hoc bespoke ways to tell the system how much resources a particular build requires.

Strongly related to this is that Koji is a bespoke task manager mostly used to build RPMs, but has little to do with running generic workloads (especially relevant: integration tests running in containers) so we end up with disjoint infrastructure. With Tekton it's way more obvious how to e.g. build a container (or an RPM which is installed into a built container) and then run tests on that container before e.g. promoting it on, within the same cluster or CI job.

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