In the previous post back in January on my flight simulator adventures, I’ve described my step from a small propeller plane to the somewhat more powerful turbocharged Daher TBM 930. While that doesn’t give a lot of benefits from a Visual Flight Rules (VFR) perspective, having a faster plane for Instrument Flight Rules (IFR) flying … Continue reading Reality Bites, Part 6: The G3000 Avionics on Steroids in That Simulator
Back in 2017, I wrote quite a number of blog entries about an upcoming technology: Virtual SIMs, also referred to as eSIMs. As with many network technologies, it took a number of years before things end up in the mass market. But it has finally happened, and an interesting ecosystem has grown around downloadable SIM … Continue reading Downloading an eSIM – in Practice – Part 1
In part 8 of this series on Kubernetes, I’ve used ‘Helm’ and ‘Helm Charts’ as an easy way to deploy a complicated Kubernetes Ingress configuration with a few commands. At the time, I left it at that and decided to come back later and explore ‘Helm’ in more detail. So here we go. In this … Continue reading Kubernetes Intro – Part 11 – Helm Charts Revisited
And I’m moving along with the exploration of how to use a managed Kubernetes cluster. In the previous episode, I’ve gone into the details of how to deploy applications into a cluster and hook them up to an Ingress load balancer, so they are reachable from the outside. In this episode, I want to expand … Continue reading Kubernetes Intro – Part 9 – Deploying Your Own App
Yes, this is already part 6 of my ongoing Kubernetes intro series. In part 5, I have moved ever deeper into the cloud by looking at how to create managed Kubernetes clusters in Amazon’s and Linode’s clouds. Containers and Kubernetes are all about scale, so one might wake up one day with many Kubernetes clusters … Continue reading Kubernetes Intro – Part 6 – Managing All Those Clusters
It’s amazing how in the past year or so, efforts in the telecom industry to move next generation systems into containers and manage them with Kubernetes have moved from theory to practice. The 5G core, for example, was specified by 3GPP in a cloud native way from the start, and even things like Open Radio … Continue reading Kubernetes Intro – Part 5 – A Cluster on Amazon and Linode
I’m almost happy with the basic hands-on understanding I have gained about Kubernetes about which I have written in part 1 to 3 of this series. I understand much better now how Kubernetes manages Docker containers, how it abstracts and manages the distribution of containers in a cluster of servers and how it makes services … Continue reading Kubernetes Intro – Part 4 – Persistent Storage
So here’s the story so far: In parts 1 and 2 of my Kubernetes intro story, we have set up a Minikube Kubernetes Cluster. We then deployed a container with an app inside, which was downloaded directly from the Kubernetes image hub, into our cluster. Our cluster is small, it only contains one worker node … Continue reading Kubernetes Intro – Part 3 – Create, Dockerize and Push Into the Cluster
When we are talking about the 5G Core and implementations based on containers the story does not end with Docker containers. As a 5GC is not only based on one server and needs lots of redundancy, a management (orchestration) tool is required to manage containers across a large number of servers. There are several tools … Continue reading Kubernetes Intro – Part 1
When LTE was launched a decade ago a clear cut was made from GSM security when it came to SIM cards and authentication. As far as I remember, LTE was the first system in which mutual authentication between network and devices became mandatory. Fortunately, by the time LTE came around the corner, most subscribers already … Continue reading Are New SIM Cards Required for 5G SA?