Every now and then I come across the requirement to build Docker containers inside a Docker container. More often than not, this happens when I need to build Docker images as part of a Jenkins pipeline - where the Jenkins master (or agent) is running inside a Docker container.

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Once you've worked with Docker for a while, you have probably noticed that it eats disk space like a whale. And when that disk space runs out, everything on your server usually grinds to a halt.

Let's get it right from the start: Containers can take you to horrible, horrible places.

But they are also awesome. They make shipping and deploying your application much easier.

This post is your survival guide to the editor Vim.

In this post I'll show you how to expose a locally running development server on the Internet. This is something I use often to run external tests against an app I'm building with Python and Flask.

I got tired of existing dynamic DNS services, so I built my own - with a twist. Me and at least 3 of my friends think it's cool.

Working with cellular data, I used to have problems with hanging SSH sessions for a decade. That is, until a friend of mine introduced me to mosh.

Terraform is a great tool for building infrastructure in the cloud. Ansible is a beautifully simple agentless (and serverless) configuration management tool. A common use case is to build servers with Terraform, and have Ansible configure them. Unfortunately Terraform lacks a provisioning plugin for Ansible - but fear not, they can be used together fairly trivially by using the local-exec provisioner of Terraform.