docs(day-2): Flatcar talk

content/.templates/talk.md

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+---
+title: Title
+weight: <index of talk on the day>
+tags:
+ - <tag>
+---
+
+<!-- {{% button href="https://youtu.be/rkteV6Mzjfs" style="warning" icon="video" %}}Watch talk on YouTube{{% /button %}} -->
+<!-- {{% button href="https://docs.google.com/presentation/d/1nEK0CVC_yQgIDqwsdh-PRihB6dc9RyT-" style="tip" icon="person-chalkboard" %}}Slides{{% /button %}} -->
+
+TODO:

content/_index.md

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+---
+archetype: home
+title: Cloud Native Rejekts & KubeCon + CloudNativeCon Europe 2026
+---
+
+All about the things I did and sessions I attended at Cloud Native Rejekts and KubeCon/CloudNativeCon EU 2026 in Amsterdam.
+
+This "blog" certainly contains a bunch of tyops.
+This is what typing the notes blindly in real time get's you.
+Every year I tell myself that I will fix them afterwards: To be fair I fix most of them but not all and that's fine.
+
+## How did I get there?
+
+I attended Cloud Native Rejekts and KubeCon + CloudNativeCon Europe 2026 in Amsterdam.
+
+Why? Because learning about all new things in the world of cloud is really important and war stories help to avoid mistakes that other's already made.
+I enjoyed [last year's experience](https://kubecon25.nicolai-ort.com) and [the year before](https://kubecon25.nicolai-ort.com), so I wanted to go again.
+
+And I managed to get a free ticket by being accepted as a speaker at the Platform Engineering Day Europe 2026 🥳.
+(Alto I already convinced my business parter that the company would pay for my ticket before I got the news)
+
+## And how does this website get it's content
+
+```mermaid
+graph LR
+    Nicolai<-->|Watches|Talk
+    Nicolai-->|"Takes notes (and typos) + commits"|Repo
+    Repo-->|Triggers|Actions
+    Actions-->|Builds image and pushes to|Registry
+    Flux-->|Detects new image|Registry
+    Flux-->|Rolls out new image|Kubernetes
+```
+
+## Changelog™️
+
+- 2026-03-21: Inital repo and deployment setup + Cloud Native Rejekts
+
+## Style Guide
+
+The basic structure is as follows: `day/event-or-session`.

content/day-1/_index.md

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+---
+archetype: chapter 
+title: Day -1
+weight: 3
+---
+
+This year there was only one day of Cloud Nativ Rejekts. So this was a down day. Well if your define finishing two talks downtime. But certainly no conference today.
+
+Also this is the day that most my friends (that are attending KubeCon) arrived.

content/day-2/01_opening.md

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+---
+title: Title
+weight: 1
+tags:
+ - rejekts
+ - keynote
+---
+
+<!-- {{% button href="https://youtu.be/rkteV6Mzjfs" style="warning" icon="video" %}}Watch talk on YouTube{{% /button %}} -->
+<!-- {{% button href="https://docs.google.com/presentation/d/1nEK0CVC_yQgIDqwsdh-PRihB6dc9RyT-" style="tip" icon="person-chalkboard" %}}Slides{{% /button %}} -->
+
+The basic welcome statements logistical stuff.
+Also a bit of history on how we ended up in MiroÄs offices (they kinda saved this year's Rejekts Europe because they were missing sponsors and a location).
+And a big shoutout to the goga-chad Artem who personally sponsored the event in addition to the corporate sponsors.

content/day-2/02_type1fun.md

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+---
+title: Type 1 Fun with Type 1 Hypervisors: The comeback of hardware-backed isolation
+weight: 2
+tags:
+ - rejekts
+ - virtualization
+ - sponsor
+---
+
+<!-- {{% button href="https://youtu.be/rkteV6Mzjfs" style="warning" icon="video" %}}Watch talk on YouTube{{% /button %}} -->
+<!-- {{% button href="https://docs.google.com/presentation/d/1nEK0CVC_yQgIDqwsdh-PRihB6dc9RyT-" style="tip" icon="person-chalkboard" %}}Slides{{% /button %}} -->
+
+A talk by EDERA - one of the sponsors of Cloud Natice Rejekts.
+
+## The types of fun
+
+1. Just fun (fun to do, fun to remember)
+2. Fun after you're finisehed, pain while you're at it
+3. Not any fun (not while doing it, not afterwards) -> Maybe a good story
+
+## Hypervisors
+
+> I skipped the basic ideas of hypervisors in these notes
+
+- **Type 2**: Runs on an existing OS and virtualizes devices to an emulated system -> Security/Isolation depends on the host-os
+- **Type 1**: Runs on the hardware (manages hardware partitioning) -> Security/Isolation is in the hypervisor seperated from all other management stuff
+
+## Kubernetes joins the game
+
+- Background: Kubernetes is built for containers and not for deep isolation
+- Existing solutions: KubeVirt (manage KVM through KubeAPI)m kada Containers (Deeper Sandbox), GVisor (emulated syscalls)
+- EDERA's idea: Their own CRI (container runtime interface) that makes vm management transparent and can run vms alongside containers
+- Potential Problems:
+  - Kubernetes assumes that cgropups exist 
+  - Kublet assumes some calls for observability exist
+  - Scheduling between shared pod-memory and isolated vm-memory
+- Their solutions:
+  - Processes: They have to fake a running process on the kubelet level even if the vm is owned by the hypervisor below
+  - Metrics: DRA and their own metrics server that bypasses kubelet in favor of the cri
+
+## Questions/Answers
+
+- Their hypervisor is a fork of zen with some rust additions
+- Live Migrations: They support it but kubernetes doesn't (so if you use the hypervisor outside of kubernetes it works)

content/day-2/03_cloudagnostic.md

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+---
+title: Cloud-agnostic provisioning for fun and sovereignty 
+weight: 3
+tags:
+ - rejekts
+ - multicloud
+ - sovereign
+ - flatcar
+---
+
+<!-- {{% button href="https://youtu.be/rkteV6Mzjfs" style="warning" icon="video" %}}Watch talk on YouTube{{% /button %}} -->
+<!-- {{% button href="https://docs.google.com/presentation/d/1nEK0CVC_yQgIDqwsdh-PRihB6dc9RyT-" style="tip" icon="person-chalkboard" %}}Slides{{% /button %}} -->
+
+A talk by Thilo - flatcar maintainer and cool guy.
+The talk consisted of multipe demos and a warning of this being the alpha version of the talk but most things worked out fine.
+
+## Baseline
+
+- **Why selfhost:** Why not? Cost efficiency, vendor independence, sovereignty requirements, customization, ....)
+- **Why our stack is kubernetes:** FOSS, community driven, versatile, stable, broad ecosystem, ...
+- **You can run it on any host**: Baremetal, Private Clouds (OpenStack, Proxmox),m Public Clouds (AWS, GCP, Azure, Stackit, Akamai)
+- **Choose your favorite OS**: Flatcar, Ubuntu, ...
+
+## The demo
+
+- **Problem:** Sovereignty is hard to proove
+- **This talks demo:** Cloud agnostic provisioning of kubernetes clusters on localhost (QEMU), Hetzner and Akamai
+- **How**: Just use one shared flatcar snapshot to provision on all cloud/localy
+- **QEMU Specual**: Qemu is not really a vm orchestrator, so wee need a little hack to enable cross-vm networking (not needed on other hypervisors/clouds)
+- **In-place updates**: Through kured (kubernetes update and reboot daemon)
+
+## Why Flatcar is cool
+
+- One config for many environments
+- Seamless migration to other cloud-providers and cross-clopud c,usters
+- Community driven and CNCF-backed
+- Managed updates
+- Airgapping
+- Extendability through sysext
+
+## What is **real** sovereignty
+
+- You can operate it youirself?
+- You can keep it stable?
+- Is your stack well stewarded/maintained and can you join?
+- Can you own it (fork, etc)?

content/day-2/_index.md

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+---
+archetype: chapter 
+title: Day -2
+weight: 2
+---
+
+The saturday was dominated by Cloud Native Rejekts hosted at Miro's offices in Amsterdam, ~1-2km from the convention center.
+It's a small "B-Side" community-event that features talks rejected (hence the name) from KubeCon alongside original talks.
+They have high selection standards leading to a high talk-quality.
+
+This being a smaller event (I'd guess sub 200 attendees) makes it a very good start to the week.
+Good talks, nice people (and not too many people) enables interesting conversations without being complete mental overload.
+And each year's attendees tend to overlap quite a bit so it's an opportunity to reconnect. 
+
+## Talk recommendations
+
+- TODO:
+
+## Other stuff I learned or people i talk to
+
+- TODO:

content/day0/_index.md

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+---
+archetype: chapter 
+title: Day 0
+weight: 4
+---
+
+Day 0 of KubeCon aka CloudNativeCon aka the day on which the co-located events happen.
+As it tends to happen every year, I spent most of my time at the platform engineering day (with a short visit to argocon).
+
+This day also included my highlight of the conference (I'm writing this on the same day and I'm alkready sure): I presented a talk at the Platform Engineering Day: 
+
+## Talk recommendations
+
+- 
+
+## Other stuff I learned or people i talk to
+
+- 

content/day1/_index.md

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+---
+archetype: chapter 
+title: Day 1
+weight: 5
+---
+
+Day 1 of the main KubeCon event startet with a bunch of keynotes from the cncf themselfes.
+
+## Talk recommendations
+
+- TODO.
+
+## Other stuff I learned or people i talk to
+
+- 

content/day2/_index.md

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+---
+archetype: chapter 
+title: Day 2
+weight: 6
+---
+
+TODO:
+
+## Other stuff I learned or people i talk to
+
+- Isovalent
+- Kubermatic
+- Portworx
+- Fastly
+- Syseleven
+- Netbird
+- VMware
+- Stackit
+- Harness
+- Mia Platform
+- and many, many more...

content/day3/_index.md

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+---
+archetype: chapter 
+title: Day 3
+weight: 7
+---
+
+The last day of KubeCon - aka the day everone leaves early.
+But not me and - and this is the first KubeCon I can say this - not my work-friends.
+
+## Talk recommendations
+
+- TODO:
+
+## Other stuff I learned or people i talk to
+
+- TODO:

content/lessons_learned/_index.md

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+---
+archetype: chapter 
+title: Lessons Learned
+weight: 8
+---
+
+Not related to any talk directly, but i can recommend this [Blog Post](https://smudge.ai/blog/ratelimit-algorithms) and [Video](https://www.youtube.com/watch?v=8QyygfIloMc&) about rate limiting.
+
+TODO: