This step by step tutorial is based on the official kubeadm tutorial and few other resources I found online. Add comments if something is not working or you have problems, I also found very useful the k8s slack channel. This is the first of three articles, the other two are

Soon or later we may need to encrypt files, here a quick way to encrypt/decrypt file from the command line.

In several occasions you may need to postpone the execution of some web requests, for performance reasons, timelines in response or resource consumption. In few PHP projects I found very useful the script below. It uses a scripts directory to read all the sh files from. Each file in the scripts directory gets moved to a running directory before execution. At the end of the execution it checks the return value and based on the result moves the sh file to the completed directory or the failed…