KubeCon Archives - credativ®

Once again a KubeCon has come to an end

This year, the CNCF hosted the meeting in the French capital. In the south of Paris at the PARIS EXPO PORTE DE VERSAILLES, over 12,000 participants came together again this year.

In addition to various talks and unconferences, there was also a wide range of Contribfests slots, which made it easier for interested parties to get involved in various projects. The thematic focus this year was clearly on Artificial Intelligence and Machine Learning.

Wednesday morning started at 9 am. All keynotes had one thing in common: the topic of AI/ML! Here are a few titles: “Accelerating AI Workloads with GPUs in Kubernetes”, “Build an Open Source Platform for AI/ML” or “Optimizing Performance and Sustainability for AI”. In addition to the keynotes, participants were also offered plenty of talks on the topic of AI and ML. Anyone interested in this topic could find what they were looking for at any time during the three days in the “Paris” room. The new white paper on “Cloud Native AI” was also announced during the keynotes.


Anyone wishing to enter the conference first had to pass through security, consisting of metal detectors and possible bag checks.

Unfortunately, there was again the problem of overcrowded rooms this year. Several times during the day it was necessary to reschedule spontaneously, as the selected talk was unfortunately already overcrowded and admission was no longer possible. Unfortunately, this also applied to some keynotes in the morning.

A few impressions

The CNCF Storage TAG and the Storage SIG reported on current developments in the storage sector and mentioned various white papers (“CNCF Storage Whitepaper, Performance and Benchmarking whitepaper, Cloud Native Disaster Recovery whitepaper, and the Data on Kubernetes whitepaper.”). Among other things, it was shown how “PersistendVolumeAttributes” can be used to adjust PersistentVolume attributes, for example to adjust the number of IOPS for a volume during operation.

In the Contribfest slot on Metal3 (Metal Kubed), the maintainers of the project gave a first insight and showed how a development environment can be set up. Among other things, Metal3 offers a ClusterAPI (CAPI) implementation that can be used to manage bare-metal systems. Ironic, which originates from the OpenStack project, is used in the background.

At the “From UI to Storage” talk Thanos maintainers gave an insight into the current implementation and potential future improvements.

In the “CRI-O Odyssey”, the CRI-O maintainers talked about innovations within the Container Runtime. This included the topic of “Confidential Containers” and “Podman-in-Kubernetes”. The topic of WASM integration was also on the agenda.

The maintainers of Fink reported on “Fink on Kubernetes” and how the system is used to classify objects like astroids or supernovas in the field of astronomy.

In the talk “eBPF: Abilities and Limitations”, not only general misconceptions were clarified, but also ways to work around existing limitations were pointed out. In addition, the question of whether eBPF touring is complete was raised and a version of Conway’s “Game of Life” in eBPF was presented.

Those who have always wanted to know how Istio mTLS can be implemented in multi-cluster environments with the help of SPIRE found what they were looking for in room D. After a short introduction to SPIFFE and SPIRE, it was shown how Istio components can be connected to the SPIRE agent.

Maintainers of operator-sdk talked about current innovations in operator-SDK and OLM V1. Particularly interesting were the changes in the Operator Lifecycle Manger that have been introduced in version 1 (previously version 0). Among other things, OLM v1 is now able to manage packaged operators via Helm, even without prior preparation by the operator maintainers.


In addition to many interesting talks, there were plenty of opportunities for lively discussions with other conference attendees and exchanges with exhibitors or project maintainers.

We are already looking forward to KubeCon 2025 in London!


For the first time ever, one of our colleagues had the chance to visit the North American edition of KubeCon and CloudNativeCon in Chicago this year.

Our colleague Michael Sprengel who already works 8 years for credativ and has gained a lot of experiences with Kubernetes and the development of Kubernetes controllers in that time, is sharing his experiences from KubeCon and CloudNativeCon North America 2023.

So with no further ado, let’s hand it over to our colleague Michael.

Come fly with me back to Chicago

Hi folks, my name is Michael Sprengel – Professional Service Consultant here at credativ – and I want to share my experiences with you from this year’s KubeCon / CloudNativeCon in North America. So come with me and let me give you a first person view of all the talks and things that I was able to experience here in Chicago. You may not had the chance to visit the North American edition of KubeCon so far, so this is the best chance for you to get some insights which could make you think of also attending KubeCon and CloudNativeCon next year then.

Those editions will take place in Paris and Salt Lake City.

Chicago – The Windy City

The good thing about such conferences is not only the possibility to attend talks and learn about new technologies that you can use in daily projects but it’s also an opportunity to learn new cultures and leave with a bag full of new memories.

This year, the conference took place in Chicago that is also known as the Windy City. I was lucky enough to arrive on Saturday, so that I had a chance to pack my backpack and pay Chicago a visit a day before the conference started. Hereby, I was able to check some of Chicago’s well known sights like for example Lake Michigan or the mighty Millennium Park in the center of Downtown Chicago.

The only downfall to this was that Chicago’s Cloud Gate that is also known as The Bean. This landmark is currently under construction at, so that I could only take a picture through some construction fences. But other than that, the city has a lot to offer like Deep Dish and Thin Crust Pizza or some university you may want to visit. Chicago is definitely worth it.

Day 1: Operator Day

Besides of this wonderful city, the actual conference has also a lot to offer. If you’re lucky enough to get a All-access pass for KubeCon, you can already visit some CNCF-hosted Co-located events near the venue. But don’t worry. Even if you don’t have such a pass, you can attend some virtual events already.

For me personally, I attended the so called Operator Day by Canonical. It’s a full day event that takes place from 9am to 4pm. It gave me some pretty good insights in implementing Kubernetes operators the Canonical way by using Juju.

Unfortunately, the current edition from Chicago isn’t online so far, but you can check out the last Operator Day from Europe by watching the videos below:

Day 2: First experiences from the venue

The second day was really mind blowing. If you never attended such a conference before, you will be surprised by the amount of talks as well as by the size of the actual venue.

After arriving at the venue, I had a chance to grab a breakfast and a coffee as well as attend the Opening Remarks in which leading Kubernetes and CNCF developers, engineers and ambassadors highlight the latest and greatest changes in Kubernetes and the CNCF space. Here, you could really feel how Machine Learning and AI is influencing Kubernetes and how features are added to this project to better support ML/AI.

Next to this, you have a big variety of talks that you can attend or you can go to the Solutions Showcase where all the major companies and sponsors have their booth. There, you can talk to maintainers or get in touch with companies that are using CNCF related projects or Kubernetes in their business. Typically some booths also offer so called Lightning Talks. These are like general talks but they tend to be shorter than the usual ones and they are mostly focusing on hands on sessions or live demos.

Day 3/4: Talks, talks and some more talks

In general, I was able to attend a lot of talks during the conference. Some of them were exactly what I was expecting and others however surprised me. Thereby, I visited the following talks:

Day 1

Day 2

Day 3

The Service Mesh Battle Scars talk was one of the talks that surprised me, because it was basically and public battle between the maintainers of the biggest Service Mesh solutions in Kubernetes.

  1. Cilium
  2. Istio
  3. linkerd

It surprised me because it was quite interesting to see how each of those projects were arguing differently to specific topics like transport encryption as well as Sidecar, Sideless or Ambient mode. As an attendee, you could really get a feeling of what thoughts each project put into specific topics before realizing them. Especially the topic about encryption caught my attention. Istio and linkerd simply use mTLS for encryption, whereas Cilium now tries to use TLS for the initial handshake while using the resulting encryption key for IPSec to implement transport encryption. This concept led to a heavy discussion if this approach is still considered to be secure since Cilium is only reusing some part of TLS instead of using it completely and usually reusing well known and accepted security algorithms is always preferred in modern IT.

Next to this, it was also pleasing to attend the Spotify talk in which Tim Hansen explained how the engineers at Spotify implement GitOps and what effort it takes to create a new project / repository that should be deployed on production. Spotify uses some self-written solutions to achieve this and overcome some limitation that already existing solutions might have. For building and deploying for example, Spotify uses their own CI/CD solution Tingle. Tingle was created in 2017 to serve as the centralized CI/CD system for backend, data and web services and it thereby replaced 200 stand-alone Jenkins machines. More information about this, can be found here:

How We Improved Developer Productivity for Our DevOps Teams

Although this talk mainly focused on Spotify and their GitOps tools, the presenter also showcased open source tools which helps to accomplish similar functionality without relying on Spotify’s own tools.

Overall, the majority of talks really helped me to broaden my knowledge regarding Kubernetes and the solutions out there. Only some talks didn’t match my expectation, but even then you still have plenty of other talks to choose from.

Get the first person view

If you want to get an idea of how such a conference looks like, I create three videos which let you experience the conference similar to what I was able to experience. Give it a try and visit KubeCon and CloudNativeCon 2023 with me again!


Having the opportunity to travel to Chicago and experience KubeCon and CloudNativeCon for the first time was an one in the lifetime experiences. You not only have the chance to get insights to so many CNCF related projects but it’s also a good opportunity to get in touch with developers, engineers, managers and other people who use Kubernetes on daily basis. If you have the chance to visit such a conference, I would highly recommend to take the chance and attend them.

On KubeCon and CloudNativeCon, I learned a lot about new stuff and got an idea of design decision that probably will help me to solve some upcoming challenges in one of my own projects and which I wouldn’t know about if I hadn’t attended this conference. Thereby, one quote from Dr. Angel Diaz, VP Technology Capabilities & Innovation at Discover Financial Services really stick to my head:

Code, Community, Culture

And this is what it’s all about. You not only learn new stuff that you can use in your code, but you become a part of a community and get use to a culture which enables you to contribute to projects that are the baseline of most of our daily projects.

With a lot of Deep Dish Pizza in my stomach and a lot of new knowledge in my head, I’m happy to return from KubeCon North America and start working on my Kubernetes projects again.

Thanks for sticking around with me and I hope to see you on next year’s KubeCon and CloudNativeCon, too.

And by the way, if you’re searching for experts in Kubernetes and CNCF related topics, give our sales department a call and we might be able to help you with that.