Terraform chaos engineering

2023-06-03

I first saw

kubedoom

and thought it was pretty cool, so I decided to do the same for Terraform, knowing that I was working with it for professional projects.

The principle is very simple, each enemy represents a Terraform resource, if an enemy dies, the associated resource is destroyed.

How it works ?

The main program is tf-doom', which creates a UNIX socket, listens to it and simultaneously launches an X11 virtual server (Xvfb), a VNC server (x11vnc) attached to this X session and psdoom (DOOM writing to the UNIX socket).

Everything we've just described will be encapsulated in a Docker container.

The binaries Xvfb and x11vnc are used to create a cross-platform graphical access to psdoom inside the container.

psdoom will continuously write to the UNIX socket to signal tf-doom to send Terraform resource information. When an enemy is killed, psdoom writes the associated resource name to the socket.

Demo

This demo has been realized with the test Terraform project, every steps to reproduce it are detailed in the README file on the repository.

Links

https://github.com/theobori/tf-doom