Mastering Vim -is hard- has never been easier.

Welcome to the second part of this series aimed to make you a better Vim user! If you have no idea about Vim, you should begin with the first part. In this article, I’ll explain many more concepts, some of them making Vim truly special compared to other editors. Who wasn’t blown away discovering Vim’s macros?

In this article, I'll discuss 5 very confusing mistakes that have caused me to waste significant amounts of time when using the command-line tool known as 'grep' to search for things. I have chosen to document these mistakes in detail because they are mistakes that beginners are very likely to make at some point, but also to not be able to debug on their own. The root causes of these mistakes are: Not knowing what flavour of regular expression that grep is currently using (and/or not understanding what features that flavour supports); Not considering the escaping rules of your shell; Issues with character encodings.

A deep dive into how we found and fixed an issue on Quay.io

This is just a simple demonstration to get a basic understanding of how kubernetes works while working step by step

We had the chance to see quite a bit of clusters in our years of experience with kubernetes (both managed and unmanaged - on GCP, AWS and Azure), and we see some mistakes being repeated. No shame in that, we’ve done most of these too!
I'll try to show the ones we see very often and talk a bit about how to fix them.

This is a hands-on introduction to Kubernetes. Browse the examples:
pods labels replication controllers deployments services service discovery health checks environment variables namespaces volumes secrets logging jobs nodes Want to try it out yourself? You can run all this on Red Hat’s distribution of Kubernetes, OpenShift. Follow the instructions here for a local setup or sign up for openshift.com for an online environment.

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