The CTO of my new company recommended the Udemy course “Go: The Complete Developer’s Guide (Golang)”. I started today and here are some notes I made. Hello World in Go We start by writing a Hello World and studying all the elements. package main import "fmt" func main() { fmt.Println("Hello World!") } How do we run code? go run main.go runs the program go build main.go compiles it to an executable ...

For month’s I considered to learn Go, and today I finally started. I doubted for a long time, because I figured it would be better to dive deeper into Python. However, when I reflected on it, I realized I’m able to do the things I want to do in Python. I can create scripts to manipulate data, and I can string different tools and libraries together if I need to. So how deep do I actually need to go as a DevOps Engineer? ...

I’m a little obsessed with controlling everything with my keyboard. That’s why I loved AwesomeWM so much on my Arch Linux setup, I hardly used my mouse anymore. One thing I loved about my setup was the ability to control my music from the keyboard from anywhere. This is a feature I picked up from the awesome-copycats theme for AwesomeWM. This was one of the first things I missed when I made my switch to MacOS. ...

My new employer kindly sponsored me with a new 16-inch MacBook Pro M2. I chose 32GB Ram and the base model with 12 CPU and 19 GPU cores and 1TB of hard disk. These specifications will suit my needs well. I’ve been daily driving Linux for a year now, and it has been such an incredible journey. Building my own Arch Linux system taught me much about Linux and what it means to maintain a system yourself. I will undoubtedly miss my custom AwesomeWM configuration and the freedom that Arch provides. ...

Last week I accepted a job offer! I’ve been hired as a DevOps Engineer by Fullstaq. Fullstaq specialises in Kubernetes and Cloud Native, so I’m really happy I could join their team. I’ll be doing projects for a variety of clients, and I think it will be a great place to learn and gain more experience in the Kubernetes and CNCF space. Fullstaq has been delightfully welcoming and great to work with so far. The future looks bright! ...

This guide uses the official getting started guide with a few modifications. This installation is only for lab purposes. Running ArgoCD in a production environment requires more configuration. Install argocd and argocd cli kubectl create namespace argocd kubectl apply -n argocd -f https://raw.githubusercontent.com/argoproj/argo-cd/stable/manifests/install.yaml My VM is running on arm architecture, so I need these commands to install the argocd cli on ubuntu. curl -sSL -o argocd-linux-arm64 https://github.com/argoproj/argo-cd/releases/latest/download/argocd-linux-arm64 sudo install -m 555 argocd-linux-arm64 /usr/local/bin/argocd rm argocd-linux-arm64 Change the service type to LoadBalancer ...

You can get a free 24GB ram VM from Oracle. What better place for your own Kubernetes lab that is always available? See this article to create your VM. Here are the steps I took to install a single node kubernetes cluster on the Ubuntu VM. Installation sudo apt-get update sudo apt install apt-transport-https curl Install containerd sudo mkdir -p /etc/apt/keyrings curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null sudo apt-get update sudo apt-get install containerd.io Remove the default containerd configuration, because it creates errors when running kubeadm init. ...

A few weeks ago someone gave me a tip. Oracle actually has a really good free tier offering. You can host a 4CPU 24GB VM for free! This is perfect for a lab environment. I spent my evening creating the VM and setting up a kubernetes cluster from scratch. Use this video to claim your free vm: https://www.youtube.com/watch?v=NKc3k7xceT8

Today I added a harddisk I had lying around because I needed some more space. On my Arch Linux system I have all my drives encrypted like a good boy. It can be a bit tricky when you are adding them because you need to configure a few different files and add different UUID’s in each of them. Here are the steps I follow to add a new disk. Note that this how to assumes that you already have set up your system with dm-crypt. ...

For the past few months I’ve been stuyding every hour of free time that I had. Now that I reached my certification goals for now, I finally had some time to do a chore I had been meaning to do for a long time. My Arch Linux system is fully encrypted, and I make backups. But I was still doing it a bit haphazardly, usually every Friday. I wanted to automate this for a long time now, but I never got round to it. Today I made the first steps, but it is still in progress. ...