Kubernetes Fails: 3 ways to kill your clusters
Kubernetes has its virtues and is worth investing in, but it is undoubtedly complex and comes with many operational challenges. We faced many of them on our journey towards "cloud native" at Zalando.
Many Kubernetes Clusters
As a reply to Zalando's "Running 80+ clusters in production" post, someone asked whether this (80+ clusters) would not defeat "the purpose"? My answer would not fit in a Tweet, so here it is as a blog post.
Accelerate: Software Delivery Performance
The Accelerate book is about "measuring software delivery performance — and what drives it — using four years of groundbreaking research and rigorous statistical methods". I'll try to explain why I see the book as a blueprint for platform teams and how it relates to developer experience.
Why Kubernetes?
There was a recent blog post by Matthias Endler on why you might not need Kubernetes. I'll try to explain why I believe Kubernetes is worth a close look, even if you just want to run some containers.
Tale of a Hacker News Post
I posted my previous blog post about Kubernetes failure stories on Hacker News (HN) last Sunday, exactly one week ago. Here is what happened afterwards.
Kubernetes Failure Stories
I started to compile a list of public failure/horror stories related to Kubernetes. It should make it easier for people tasked with operations to find outage reports to learn from.
One month of Kubernetes VPA
This is a small report of what I observed after one month of using the Kubernetes Vertical Pod Autoscaler (VPA) for a simple application (only a single pod).
Black Swan
I'm currently reading the book "Black Swan" by Nassim Nicholas Taleb. That led me to the realization that we deal with a lot of Black Swan events in technology.
Rebooting this blog
There is a large gap on this blog --- no posts since 2014! I don't even try to explain, so I will just try to reboot his blog and post more regularly. I took a close look at Hugo to replace Nikola as the static site generator. Hugo looks easy to use, but in the end I came to the conclusion that the content (writing blog posts!) should be the focus and I don't want to go down the rabbit hole of replacing my static site generator and/or theme (for now).
Pequod Single Node Cluster as Vagrant Box
Installing and configuring a private Platform as a Service (PaaS) usually is not an easy task. Testing our (unreleased) Docker-based Pequod cloud solution becomes easier with our new single-node-cluster Vagrant box. I'll show you how to get a "complete" trial Pequod cluster up and running with Vagrant.