Technical – Luke LogBook

November 12, 2021November 12, 2021

Docker Image Migration script

Docker is changing.. and as all the changes in this period, things are getting shittier. So recently the announced two shitty things:

1. Docker desktop is not gonna be free anymore for companies above 250 employees

2. They messed up again the way how you can manage and define docker teams and image repo in the docker registry.

Regarding 1, we are just waiting that everyone start to migrate to free alternative (eg Rancher ). For number 2, this article will help to save a shitload of money.

May 27, 2021May 28, 2021

Socket Families

This is a short article to clarify few things on sockets. I had to do some research to work with those classes, especially when you do some more advance uses. Lets start with some basic.

March 4, 2021March 4, 2021

Debugging Go Code in docker-compose

This is a small guide to clarify the setup needed to debug Go code running in a container in docker-compose using Delve debugger . Basically lets suppose that you have 3 service running in three different containers:

February 4, 2021February 4, 2021

Whatsapp vs Signal vs Telegram

The recent privacy policy changes by Whatsapp has triggered a big migration towards similar platforms such as Signal and Telegram. But are those really better? Why? In this article we will see what are the strong and weak points of each of them from a privacy prospective.

December 9, 2020December 9, 2020

Run a GUI program at Startup on LXDE

Have you ever needed to launch a GUI program that run at startup and goes directly into full screen mode? Probably not.. but if you do, just continue reading this post..

October 9, 2020October 9, 2020

Unable to Grant Privileges on MariaDB

WordPress requires an SQL like database. On RPI there is no MySQL database, but there is an equivalent fully compatible DB called MariaDB. After a fresh install there’s no password set up initially for the user root, so is very important to fix that. You should use the secure installation script that come along.

May 20, 2020May 20, 2020

Variables in Bash

Lets talk about variables in bash scripts. Nothing super technical, but this is just a small clarification article for a such useful features. But lets start from the beginning. .. What are bash variable and why a user or developer should care about it? Continue reading “Variables in Bash”

April 11, 2020April 11, 2020

GIT_2 : Workflows: branch and fork

In the last article we discussed some basic git concept. Now I want to introduce some GIT workflows to be used while developing code in teams, that uses Pull Requests and code reviewers. In particular I want to explain how to keep the master history clean and how to avoid all those ugly merges and unnecessary commits that a lot of teams have in their master history.

April 11, 2020April 11, 2020

GIT_1 : (not so) Basic Concepts

If you are a programmer and if your team consist of more than 1 person, then you are probably using GIT. There are two ways to use git: the wrong way and the right way. If you never used “rebase” command or if you never squashed any of your commits or if you never heard about forks, then you are probably using it wrong. Ah before we start, I assume that you are familiar with basic git terminology.

July 6, 2019September 22, 2019

Hardware-based authentication: Yubikey configuration

In the last article I gave a quick overview of the hardware tokens and the yubikey. Today we will go more in details and we will see how to set and use GPG keys on the yubikey. Continue reading “Hardware-based authentication: Yubikey configuration”