Patrick van der Leer

Valetudo - bricking vacuums

pat.vdleer@gmail.com (Patrick van der Leer) — Sat, 20 Dec 2025 00:00:00 +0000

I bricked my Dreame Z10 Pro with the helped of Valetudo, brought to you by Soren Beye, a.k.a. “Hypfer”.

Creality CR-6 SE

pat.vdleer@gmail.com (Patrick van der Leer) — Thu, 10 Nov 2022 00:00:00 +0000

I smacked the living shit out of it and threw it across the room, I haven’t felt this good in a long time.

Server AP012

pat.vdleer@gmail.com (Patrick van der Leer) — Sun, 13 Feb 2022 00:00:00 +0000

Every once in a while you run into a problem that simply doesn’t make sense at all, each new piece of information contradicts the previous one while you continue to go down the rabbit hole. One of those situations that makes you completely doubt everything you know and do, well, here’s the tale of server AP012.

Docker minimal deployment setup

pat.vdleer@gmail.com (Patrick van der Leer) — Sat, 10 Jul 2021 00:00:00 +0000

I got into a situation where I got a minimal setup, fairly small VPS for a test/staging server which was behind a VPN. For a project I needed to deploy frontend services but rather than a Kubernetes setup I needed to get the same basic features on a simple bare VPS where I wasn’t even root at.

FAT32 over 2TB - USB vs SATA

pat.vdleer@gmail.com (Patrick van der Leer) — Tue, 04 May 2021 00:00:00 +0000

A number of years ago I started setting up a DIY NAS, before that I simply had a stack of external hard drives. At the time I switched a lot between Linux and Windows, the NTFS support wasn’t great and since life is too short to remove devices safely I usually just unplugged them causing Linux to refuse to mount since “the partition was still active”. So FAT32 it was…

The inner workings of an online casino

pat.vdleer@gmail.com (Patrick van der Leer) — Thu, 25 Mar 2021 00:00:00 +0000

Let’s take a look at how an online casinos actually works, and discus what they actually do and especially what they don’t.

Home Assistant, MQTT and SSL

pat.vdleer@gmail.com (Patrick van der Leer) — Mon, 15 Feb 2021 00:00:00 +0000

Setting up MQTT broker with SSL, the easy/lazy way.

Custom Helm chart in GitLab auto devops

pat.vdleer@gmail.com (Patrick van der Leer) — Wed, 06 May 2020 00:00:00 +0000

The default auto devops is based on 2 major parts, the auto-deploy-image and the auto-deploy-app . We’ll go through both of them and take a look the standard possibilities they provide.

Routing traffic in KinD

pat.vdleer@gmail.com (Patrick van der Leer) — Mon, 03 Feb 2020 00:00:00 +0000

How to route traffic via a reverse proxy, i.e. Nginx , in KinD .

Testing deployments with KinD

pat.vdleer@gmail.com (Patrick van der Leer) — Wed, 15 Jan 2020 00:00:00 +0000

A short post about how I use KinD to test my Kubernetes with Helm and Helmfile .

Gitlab CI/CD and Helm + file

pat.vdleer@gmail.com (Patrick van der Leer) — Sat, 14 Dec 2019 00:00:00 +0000

A short post about how I use GitLab CI/CD to automagically deploy to Kubernetes using Helm and Helmfile .

Gitlab CI/CD and PyPi

pat.vdleer@gmail.com (Patrick van der Leer) — Tue, 22 Oct 2019 00:00:00 +0000

A short post about how I use GitLab CI/CD to automagically test and deploy to PyPi .

Twelve-Factors in practice - Part V - Build, release, run

pat.vdleer@gmail.com (Patrick van der Leer) — Tue, 10 Sep 2019 00:00:00 +0000

The fifth of a 12 part series on how to use Twelve-Factor App in practice. I will be explaining and implementing https://12factor.net/build-release-run based on my experience on how to deal with pipelines.

Twelve-Factors in practice - Part IV - Backing services

pat.vdleer@gmail.com (Patrick van der Leer) — Mon, 09 Sep 2019 00:00:00 +0000

The forth of a 12 part series on how to use Twelve-Factor App in practice. This entry is, again, written in collaboration with my good friend and (twice/double) former coworker Mycha de Vrees.

We will be implementing https://12factor.net/backing-services based on my/our combined experience on how to deal with resources/services although is is going to be a short one.

Twelve-Factors in practice - Part III - Config

pat.vdleer@gmail.com (Patrick van der Leer) — Tue, 06 Aug 2019 00:00:00 +0000

The third of a 12 part series on how to use Twelve-Factor App in practice. This entry is, again, written in collaboration with my good friend and (twice/double) former coworker Mycha de Vrees. We will be implementing https://12factor.net/config based on my/our combined experience on how to deal with configuration.

Twelve-Factors in practice - Part II - Dependencies

pat.vdleer@gmail.com (Patrick van der Leer) — Tue, 23 Jul 2019 00:00:00 +0000

The second of a 12 part series on how to use Twelve-Factor App in practice. This entry is written in collaboration with my good friend and (twice/double) former coworker Mycha de Vrees.

Twelve-Factors in practice - Part I - Codebase

pat.vdleer@gmail.com (Patrick van der Leer) — Mon, 15 Jul 2019 00:00:00 +0000

The first of a 12 part series on how to use Twelve-Factor App in practice. This entry is written in collaboration with my good friend and (twice/double) former coworker Mycha de Vrees.

Setting up Gitlab Pages

pat.vdleer@gmail.com (Patrick van der Leer) — Wed, 10 Jul 2019 00:00:00 +0000

I started a while back with setting up Gitlab Pages for replacing my personal website and setting up some doc pages. Setting everything up and getting this website to work, especially on custom domain names, was quite the adventure.

How

pat.vdleer@gmail.com (Patrick van der Leer) — Mon, 01 Jan 0001 00:00:00 +0000

I always start by asking too many questions. Why? Because I want to form an idea or basic instinct of what you do. What might seem like a random question is actually not. It all has to do with improvement and preventing bolting doors shut which need to become grand openings later on.

For me it is important that everyone has their own role within a team. Everyone should know what they’re responsible for and because of this awareness we get things done. Your job should be what you’re good at. People don’t specialize in things they don’t care about. So by making someone responsible for a task which they are specialized in, they will deliver better results and improve themselves.

What

pat.vdleer@gmail.com (Patrick van der Leer) — Mon, 01 Jan 0001 00:00:00 +0000

I specialize as a DevOp, I don’t only write code but also implement and maintain it. By not just writing code my views on solutions is wider than most. I’m able to (at least) have an idea on what kind of hardware or platform the software is running on and thus taking into acount how this can affect the software.

The main programming languages I focus on are Python, PHP and to a lesser extent Javascript. For years I’ve focussed on PHP because of the eCommerce platform Magento. I’ve started at the bottom, building relatively small and simple webshops and grew into a bigger role at a larger organization being responsible and being part of an international development team building software for an international telecom provider.

Who

pat.vdleer@gmail.com (Patrick van der Leer) — Mon, 01 Jan 0001 00:00:00 +0000

Ever since I was a little kid it was clear I would end up in IT, I followed in the footsteps of my dad as a system admin and grew to become a programmer. The only thing still missing is the USB port in the back of my neck.

My autism may scare off potential clients/employers at first but I believe it makes me better in my job. My brain is actually wired to see things in absolutes, which is programming all about,and apply the real (fuzzy) world to it. I see the world differently which is a big added value to a project and I’m not affected nor governed by emotions.