How to prepare for the Certified Kubernetes Administrator (CKA) exam
Nov 23, 2022
The Certified Kubernetes Administrator (CKA) exam evaluates your ability to operate a Kubernetes (K8s) cluster and your knowledge of how to run jobs over the cluster.
Why K8s deployments need `matchLabels` keyword
Oct 27, 2022
To create a Kubernetes deployment, we must specify the
matchLabels field, even though its value must match the one we specify in the template. But why? Cannot Kubernetes be smart enough to figure it out without us being explicit?
Managing Helm CRDs with Terraform
Aug 27, 2022
terraform, helm, and kubernetes
Helm is a remarkable piece of technology to manage your Kubernetes deployments, and used along Terraform is perfect for deploying following the GitOps strategy.
Why you should contribute to GitLab
May 4, 2022
Contributing to any open-source project is a great way to spend a few hours each month. I started more than 10 years ago, and it has ultimately shaped my career in ways I couldn’t have imagined!
Managing Rust crates in private Git repositories
Mar 19, 2022
rust and gitlab
Rust is all hot these days, and it is indeed a nice language to work with. In this blog post, I take a look at a small challenge: how to host private crates in the form of Git repositories, making them easily available both to developers and CI/CD systems.
The inconsistencies of AWS EKS IAM permissions
Dec 15, 2021
aws and security
AWS EKS is a remarkable product: it manages Kubernetes for you, letting you focussing on creating and deploying applications. However, if you want to manage permissions accordingly to the shared responsibility model, you are in for some wild rides.
How to make Terraform waiting for cloud-init to finish on EC2 without SSH
Aug 19, 2021
aws and terraform
Terraform is a powerful tool. However, it has some limitations: since it uses AWS APIs, it doesn’t have a native way to check if an EC2 instance has completed to run cloud-init before marking it as ready. A possible workaround is asking Terraform to SSH on the instance, and wait until it is able to perform a connection before marking the instance as ready.
Adding comments to the blog
Aug 17, 2021
After years of blogging, I’ve finally chosen to add a comment system, including reactions, to this blog. I’ve done so to make it easier engaging with the four readers of my blabbering: of course, it took some time to choose the right comment provider, but finally, here we are!
Reading env variables from a Tauri App
Aug 15, 2021
“Build smaller, faster, and more secure desktop applications with a web frontend” is the promise made by Tauri. And indeed, it is a great Electron replacement. But being in its first days (the beta has just been released!) a bit of documentation is still missing, and on the internet there aren’t many examples on how to write code.
Integrating JetBrains Qodana with GitLab pipelines
Feb 14, 2021
JetBrains Qodana is a new product, still in early access, that brings the “Smarts” of JetBrains IDEs into your CI pipeline, and it can be easily integrated in GitLab.