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.
Docker with IPv6 and Resource Isolation
To experiment with Docker and IPv6 in "production", I decided to migrate this tiny blog to our (unreleased) Docker-based Pequod Cloud Solution. I will briefly describe how the setup looks like.
USB WLAN on Xubuntu 13.10
In order to connect my old desktop PC (now connected to TV screen), I had to buy either a long ugly CAT cable, buy two powerline adapters or buy a WLAN adapter. I decided to go for a wireless USB adapter.
XFCE desktop switch with Super key
After upgrading to Xubuntu 14.04 my beloved shortcut Super+1 (left "Windows" key and "1" key) to switch to the first workspace/desktop did not work anymore.
Copying a large file via SSH
SCP is great for copying files between hosts, but what if you want to up/download a large file through a limited bandwidth connection without waiting for completion?
Checking for file existence on potentially hanging NFS mounts
NFS mounts can be annoying as they tend to "hang" (for various reasons). Here I show how I replaced os.path.exists(..) with a better solution for potentially hanging paths.