Buone feste 🎄

Un augurio di serene feste e felice nuovo anno. Colgo l’occasione per segnalarvi che sarò in ferie dal 24/12 all’8/1. A presto, Andrea Casarin andreacasarin.com Facebook | Twitter | Linkedin

Kubernetes state and metrics monitoring

When moving your workload from some VMs to a Kubernetes cluster you may find yourself losing grasp on what's happening, it happens to all of us. However K8S has some great ways to make sure you are on

Postgres, where and null

Some days ago I was working on a project which uses Postgres as DBMS. Postgres is great, but it has some significant differences if you are used to MySql. I learned one of them the hard way. While doing a

OpenSSH ssh-dsa and ssh-rsa

OpenSSH 8.8 is deprecating ssh-rsa and ssh-dss as key types. In the SSH protocol, the "ssh-rsa" signature scheme uses the SHA-1 hash algorithm in conjunction with the RSA public key algorithm. It is now possible to perform

Nginx caching on Kubernetes

Nginx ingress is one of the best ingress you can use on your K8S cluster, by default it comes with a lot of features but caching is not enabled. Let's see how to set up a simple static

Static assets optimization for websites

I recently restyled my website (this one!) switching from Wordpress to GhostCMS and SvelteKit (which are great,but that's a story for another day). In the process I wanted to reach some good speed to please both the

Ansible forks/serial on a task level

If your inventory contains the same host multiple times (think dynamic inventories or something defined via Terraform) and then you run a playbook against that (eg. target: all) you'll end up trying to run the same tasks simultaneously

eBPF application monitoring on Kubernetes

Just a quick one, since I recently found out about Pixie which is a super interesting opensource project recently bought by NewRelic. It's an agent which you can install on your k8s cluster (or on your standard VM)