Angelesen #50 – Kubernetes and Space!

Sonntagabend, knapp vor acht Uhr: Hier kommen die Links der Woche: Mal schauen, ob ich die wöchentliche Veröffentlichung hinkriege, ich streiche derzeit einfach die Artikel raus, welche mir nach ein paar Tagen missfallen, und versuche so um die 10-15 interessantesten Artikel der Woche drin zu behalten.

Ansonsten gibt es gute Links und Artikel zu allem, was mit Kubernetes zusammenhängt, drüben bei Cloud-Native.

Go Ahead, Millennials, Destroy Us (

One of my students once asked me, when I was teaching the writing of political op-ed essays, why adults should listen to anything young people had to say about the world. My answer: because they’re afraid of you. They don’t understand you. And they know you’re going to replace them.

That op-ed hits close to home

TunSafe: Experimental WireGuard VPN Client for OSX (

This is the web page for the experimental early release of the TunSafe WireGuard Client for OSX. Warning: This is pre-release software. Use at your own risk.

Wireguard for OSX! By far the most advanced VPN Client so far.

European clocks lose six minutes after dispute saps power from electricity grid (

The continental network had lost 113GWh of energy since mid-January because Kosovo had been using more electricity than it generates. Serbia, which is responsible for balancing Kosovo’s grid, had failed to do so, ENTSO-E said.

113GWh wer zum Teufel braucht so viel Strom!
Ok Witz bei seite, spannend zu sehen wie lange es dauert, bis man rausfindet wo der fehlende Strom herkommt (oder eben nicht). Bleibt nur zu hoffen, dass keine “wichtige” Infrastruktur auch zu billig Produziert wird und auf einen Quarz verzichtet.

How we discovered a database leak in one of the biggest Swiss hosting provider (

During the development of our new security SaaS, allowing anyone to check the security level of its own servers, we ran tests on one of our own websites. Since the website is hosted by one of the biggest hosting provider in Switzerland, we didn’t expect to find any critical vulnerabilities. It turned out we were wrong.

Very sad to see such neglects at big swiss hosters. But it also shows how important good security processes are.

World-first firing of air-breathing electric thruster (

In a world-first, an ESA-led team has built and fired an electric thruster to ingest scarce air molecules from the top of the atmosphere for propellant, opening the way to satellites flying in very low orbits for years on end.

Scheduling in Kubernetes (

This process informs about the trade-offs engineers made in the implementations. Knowing a tool’s strengths and weaknesses helps better design systems on top of it; it exposes potential failure modes and helps debug critical errors when they occur. It also reveals brilliant ideas, tricks, patterns and conventions used in production systems.

Interesting walk trough on the k8s scheduling implementation

Volk beerdigt No Billag (

Über Ganz schlechte Verlierer und Noch schlechtere Verlierer

kube-ops-view: Kubernetes Operational View – read-only system dashboard for multiple K8s clusters (

Goal: provide a common operational picture for multiple Kubernetes clusters.

Render nodes and indicate their overall status (“Ready”)
Show node capacity and resource usage (CPU, memory)

The one tool I’m fanboying now for more than a week. Simply gives me a high-level overview when things hit the fan and the K8s cluster gets out of hand. The only thing that bugs me at the moment is that it’s not really built for nodes that feature a lot of containers ;)

This Glorious Madman Stuffed A Tesla Drivetrain Into A 1981 Honda Accord (

While the Teslonda’s main parts came from the Model S, other parts were often bought based on what fit in a given space and still work with the car. They didn’t plan this build so much as put things together and see what fits. Belosic’s final build sheet has a hilarious variety of donor vehicles as a result.

Tesla Drivetrain in a Honda Accord… well why not?

February 28th DDoS Incident Report (

Between 17:21 and 17:30 UTC on February 28th we identified and mitigated a significant volumetric DDoS attack. The attack originated from over a thousand different autonomous systems (ASNs) across tens of thousands of unique endpoints. It was an amplification attack using the memcached-based approach described above that peaked at 1.35Tbps via 126.9 million packets per second.

Great Post-Mortem on the 1.35Tbps DDoS which hit Github

Taking a sabbatical changed my life. Here’s why you should do it too (

The problem is that most people do not realize that taking a break is an option and most people do not ask for such things since they assume that the company will not support it. Moreover, in our competitive work environment, we fear we would be ‘left behind’ in the invisible race we are all running in the name of ambition.

An interesting take on sabbaticals

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