# nu nl (blogs) — RSS Amplifier Recent posts from the 2 feeds in the RSS Amplifier directory that cover nu nl. Page: Feed: --- ## [Where did those 800 pods come from?](https://www.tibobeijen.nl/2026/07/18/where-did-those-800-pods-come-from/) _2026-07-18 · TBNL_ Recently I merged a pull request that was like any other pull request. But things unfolded quite differently. Things didn’t break, but could have. Things shouldn’t have happened, but did. The typical unlikely combination of factors, involving Argo CD ApplicationSets and mysterious AWS EKS Fargate nodes, resulting in some head-scratching, troubleshooting and interesting take-aways. In… ## [Individual Thought Patterns: "Going caveman" and "you do you"](https://www.tibobeijen.nl/2026/05/15/individual-thought-patterns-caveman-technology-and-you-do-you/) _2026-05-15 · TBNL_ During my weekly long runs I listen to podcasts. Mostly about tech or music, and a couple of months ago I listened to an episode that contained some quotes that kept resonating: “Going caveman” and “you do you”. Let’s unpack what they mean in the context of working in tech, the AI-ification of everything, and the state of the world today1. A bit of background The… ## [Introducing the Zen of DevOps](https://www.tibobeijen.nl/2026/02/23/introducing-the-zen-of-devops/) _2026-02-23 · TBNL_ Introduction Over the past ten years or so, my role has gradually shifted from software to platforms. More towards the ‘ops’ side of things, but coming from a background that values APIs, automation, artifacts and guardrails in the form of automated tests. And I found out that a lot of best practices from software engineering can be adapted and applied to modern ops practices as well.… ## [Introducing the Zen of DevOps](https://www.tibobeijen.nl/2026/02/23/introducing-the-zen-of-devops/) _2026-02-23 · TBNL_ Introduction Over the past ten years or so, my role has gradually shifted from software to platforms. More towards the ‘ops’ side of things, but coming from a background that values APIs, automation, artifacts and guardrails in the form of automated tests. And I found out that a lot of best practices from software engineering can be adapted and applied to modern ops practices as well.… ## [Reflecting on certification and Golden Kubestronaut](https://www.tibobeijen.nl/2025/12/17/reflecting-on-certification-golden-kubestronaut/) _2025-12-17 · TBNL_ Recently I passed the last of the exams that grants the Golden Kubestronaut title. And it was quite the journey. About fifteen years ago, I dabbled a bit in certification via PHP and Zend. Back then, PHP tried to be corporate Java, including the design patterns and certifications that come with it. And I went along! Let’s say it has been a phase, in which I built quite some monstrosities 1. ## [What do the C4 architecture model and blastbeats have in common?](https://www.tibobeijen.nl/2025/04/15/what-do-c4-architecture-model-and-blastbeats-have-in-common/) _2025-04-15 · TBNL_ Past Friday I had a focus day, hardly any meetings and time to do some scheduled deep work. Also, Fridays in general are ‘release day’, which always means anticipating on new album drops1. This Friday saw the luxury of two excellent new albums being released: Biographyte by Cytotoxin and Aspiral by Epica. Both albums where ‘a lot is happening’. For a bit of context: I work… ## [FastFlowConf recap](https://www.tibobeijen.nl/2025/04/04/fastflowconf-recap/) _2025-04-04 · TBNL_ Introduction Past week, I attended FastFlowConf, “a Team Topologies Conference”. As the Team Topologies site describes itself: Team Topologies is the result of years of research into how successful leaders design team-of-teams organizations delivering business outcomes through technology Team Topologies, to me, feels like a logical evolution of Agile. Most practices described in the… ## [FastFlowConf recap](https://www.tibobeijen.nl/2025/04/04/fastflowconf-recap/) _2025-04-04 · TBNL_ Introduction Past week, I attended FastFlowConf, “a Team Topologies Conference”. As the Team Topologies site describes itself: Team Topologies is the result of years of research into how successful leaders design team-of-teams organizations delivering business outcomes through technology Team Topologies, to me, feels like a logical evolution of Agile. Most practices described in the… ## [East, west, north, south: How to fix your local cluster routes](https://www.tibobeijen.nl/2025/03/24/east-west-north-south-fix-local-cluster-routes/) _2025-03-24 · TBNL_ Introduction Recently I needed to test a Keycloak upgrade. This required me to deploy both the new Keycloak version and a sample OIDC application on my local Kubernetes setup. And it pointed me to a thing I kept postponing: Improve my local development DNS, routing and TLS setup The challenge Until recently, I used urls like keycloak.127.0.0.1.nip.io:8443. This points to 127.0.0.1 port 8443 which… ## [Study tips for becoming a Kubestronaut](https://www.tibobeijen.nl/2025/02/12/study-tops-for-becoming-a-kubestronaut/) _2025-02-12 · TBNL_ Introduction At KubeCon 2024 in Paris, CNCF introduced the Kubestronaut program. Quoting: The Kubestronaut program recognises community leaders who have consistently invested in their ongoing education and grown their skill level with Kubernetes. Individuals who have successfully passed every CNCF’s Kubernetes certifications – CKA, CKAD, CKS, KCNA, KCSA – will receive the title of “Kubestronaut”… ## [Hire AI-Powered Freelancers Fast (Sponsored)](https://crawlproof.com/a/dguz5MQa1DYK) _2025-02-12 · **Sponsored**_ Browse and hire skilled professionals using AI tools — free to post, free to apply. ## [Infra pull requests that make a DIFFerence](https://www.tibobeijen.nl/2025/01/10/infra-pull-requests-that-make-a-difference/) _2025-01-10 · TBNL_ Introduction These days, applying Infrastructure as Code (IaC) changes is typically automated by using pipelines or GitOps. This Infrastructure Lifecycle shares some characteristics with the Software Development Lifecycle: It starts with defining a goal, which is then followed by authoring of code, checks and tests, and a code review step. However, there are also some aspects that make the…