Friedrich’s “Fred” Notes

Friedrich "Fred" Clausen

I am a build and infra automation engineer working to become a better all-round developer. This blog is a record of my travels in both the development, infrastructure, and computer science mathematics space. The info on this blog may be correct or it may not; happy to get feedback either way.

Chefspec Basics - Initial notes

This post sums up the various aspects of writing Chefspec tests so that when I forget I can quick check here. Hopefully this will be of use to others. All e...

Rundeck - Authentication and Authorisation Notes

Rundeck has a powerful authentication and authorisation infrastructure making it suitable for use in organisations with many different teams. For example the...

Docker with Test Kitchen Notes

While Docker is not meant to be a “faster VirtualBox” I think it can be useful for improving the speed of test Chef cookbooks. It is a good compliment to u...

Bash history expansion cheatsheet

Often I forget the precise letter incantation for a particular bash history expansion shortcut and the bash manual page is crying out for a tabular form of ...

Switch Frames in Selenium

I’ve noticed that I was getting inexplicable “ElementNotFound” errors in Selenium when trying to swith frames after having previously switched a frame else w...