The title might state something trivial, but the consequences may be unexpected. Let me frame the issue. The problem Working in an organization normally means to collaborate with other people. …

Using one node as reverse proxy is a bottleneck. Introducing IPVS I can improve the performance of a website. — Today I want to talk about how I spotted a performance bottleneck in a my infrastructure (DockerLab) and found a way to prevent that. All started during a performance test on a website hosted on DockerLab. Let me present the scenario: a static website is served by 4 Nginxs that…

In my life I have seen a lot of conflicts born from the misunderstanding. For misunderstanding I mean when two or more people want to achieve a common goal (e.g. an holiday together, a work project…), but in their minds the idea to accomplish it is different. I will do…

Have you ever wanted to create your CI/CD pipeline at home? — I was developing the project web-infrared (https://github.com/fabrizio2210/web-infrared) and I decided to create a reliable environment where develop. For reliable I mean that I can write new code, even in distance of months, without breaking the old features. web-infrared is basically a web service that exposes API and a web page…

Introduction — I want to describe my hiring path for the people that know me and maybe it can be interesting for those who are trying to get hired as an SRE (Site Reliability Engineer). The hiring process lowers the uncertainty There is a nice article about SRE hiring (https://www.usenix.org/system/files/login/articles/login_june_07_jones.pdf), …

https://github.com/fabrizio2210/web-infrared — Where the idea comes from From day to day my TV remote control begun not to work properly. So I decided to create my own remote control with a Raspberry Pi Zero. The requirements are: accessible by mobile phone no need to install nothing on mobile possibility to control several devices It follows that should…

Recently I have been exploring the DevOps world. In my path I encountered the Continuous Integration and Continuous Deployment. In order to understand what they mean, I attended a course on Udemy by Ali Rizavi and read some articles around. You can find the references on bottom of this article…

Introduction Nowadays computer science is very advanced; and I expect to be able to simplify my life by automating and integrating several components. For example, have you ever thought about keeping track of your tenants’ payments and sending an email to those who forgot to pay the rent? I found N26…

An infrastructure of distributed systems where you can run your containerized services. https://github.com/fabrizio2210/ansible-DockerLab Introduction I am Unix system administrator and, as a lot of people in my field, I treasure a project as a baby at home. This project is important for me because it aims to create a supporting infrastructure…