Tomás Dias Almeida notes

Books

Wed, 25 Dec 2024 21:33:43 +0100

2024

Never Split the Difference: Negotiating as if Your Life Depended on It.
Author: Chris Voss, Tahl Raz
A book about negotiation and learning how to deal with different type of people. Good one if you want to try to negotiate better.

PyConES 2024: my impressions of my first time in a python conference!

Sun, 06 Oct 2024 21:54:45 +0100

PyconEs 2024 in Vigo

PyConES is the annual Python conference in Spain, and it is organized by the Python Spain association. The Python community in Vigo is quite active and so, they were invited to host PyConES 2024. Just to mention too, Python Vigo was a pillar to the creation of VigoTech Alliance, the meta community of tech communities in Vigo.

Keeping the long story, Confluent was an sponsor (and a colleague had a talk), so I had no excuses to not attend it. If you do not want to hear more, the TL;DR is that I was impressed by the number of people, the quality of the talks and the organization. Congrats to everyone involved!

How to Use Confluent for Kubernetes to Manage Resources Outside of Kubernetes

Thu, 08 Feb 2024 21:54:45 +0100

Article in Confluent Blog

My first article on Confluent Blog How to Use Confluent for Kubernetes to Manage Resources Outside of Kubernetes talks about how to manage your Confluent resources like RBAC, topics, schemas and connectors using Kubernetes in Confluent components living outside Kubernetes.

The article is complemented with a full demo and I hope it can be an inspiration if you are familiar with Kubernetes and uses Confluent components in VM machines or similar.

Moving to GitHub Actions

Mon, 15 Jan 2024 21:54:45 +0100

Why

Travis CI is blocking this blog to be generated, why? I do not know, I have credits for it, but it cannot be used, so I am forced to tick a task in my list and move to GitHub actions.

Disabling Travis CI

Removing GitHub <-> Travis CI integration

Go to https://github.com/settings/installations
Search “Travis CI” and click Configure
Scroll down and click in the “Uninstall” button
Go to https://github.com/settings/apps/authorizations
Search “Travis CI” and click Revoke

Deleting Travis CI

According to this forum question, there is no UI option.
Send a mail to support@travis-ci.com requesting the account deletion.

Add GitHub Actions

That is the easiest part as Hugo created a nice tutorial. I followed it and that is the reason why you are able to read this blog post.

Migrating From Junit4 to Junit5

Mon, 20 Jun 2022 22:14:25 +0200

In 2019, I gave a talk at Netcentric Summit about Junit5 migration and its advantages. You can check the content here:

Video: Netcentric | JUnit 5, mockito 2 and AEM Mocks, is it true for you?
Blog post: JUnit 5: leveraging new features for testing

After 3 years, I wanted to revisit the procedure to migrate from junit4 to junit5, so let’s do it! The result was this PR.

Steps

1. Dependencies

1.2 Main pom.xml

In the main pom.xml, replace

My summary about AWS queues

Sun, 29 May 2022 12:40:26 +0200

I was doubting about writing this post because AWS is evolving really fast and this post will be probably old very fast. So, I am adding the AWS documentation, so, please take your time to check the official documentation to confirm my findings (and if possible, write me a message so I can update it if needed).

SQS

AWS SQS is a simple 1:1 queue, so it delivers messages from A to B.

About me & this page

Sun, 29 May 2022 10:00:00 +0100

Hello, I am Tomás. I work as Customer Success Technical Architect (CSTA, read like “siesta”) at Confluent. As CSTA, I help companies to keep their data in motion using Confluent products and Apache Kafka.

Before Confluent, I worked as senior software engineer and team lead at Netcentric being the bridge between the business necessities and the development team. My main tasks included participating in business meetings to guide the client about how to take advantage of Adobe products, supporting the team to work better, and designing and implementing solutions.

Creating an archetype from an existing project

Sat, 29 May 2021 15:13:31 +0200

If you are creating a cloud of microservices or are in an environment where you have to generate multiple maven projects or modules, it is very useful to create archetypes to handle these new modules/projects creation.

What is an archetype?

A Maven archetype is a templated project. Maven offers several archetypes that allow you to create new maven modules ready to run in few seconds.

How to use a generic archetype?

Archetype usage is quite simple. If you want to generate an archetype based on the default list, just run:

Introducing myself to Kubernetes

Fri, 02 Apr 2021 20:51:10 +0200

I am starting my journey with kubernetes (k8s) and I want to share the tutorials and blog posts that I read. In that way I can find them easily too 😬.

Kubernetes basics:

A Beginner’s Guide to Kubernetes: a very complete guide about the kubernetes basics and how they work internally.
An introduction to Kubernetes.: defines kubernetes, pod, deployment, service, ingress, job, kubernetes control plane and when to NOT use k8s.

Kubernetes tools:

Developer Tooling for Kubernetes in 2021: Helm, Kustomize, and Skaffold. Important point here: kustomize is part of kubectl calling kubectl -k, so it will, possibly, become the standard.
How To Manage Your Kubernetes Configurations with Kustomize
Expose Your App to The Internet Using Ingress Controller
kaniko - Build Images In Kubernetes

This list will grow, but if you found any error or want to help me to improve this article, please comment the pull request

Debugging AEM: java code in IntelliJ

Sun, 31 Jan 2021 19:38:11 +0100

When you are working on Adobe AEM, you usually have to debug some sling or OSGi classes to understand what is happening “behind the scene”. IntelliJ allows you to download source code and attach it to IntelliJ, but sometimes you cannot do it (you do not have internet access, your vpn to your nexus is down, etc…).

This trick allows you to import the jar bundles into IntelliJ and debug them without downloading the sources!

Mocking a http post server with node.js

Wed, 06 Jan 2021 21:55:47 +0100

Sometimes we need to contact remote servers and send him some data. It is hard to test the whole feature if the remote server does not offer you a sandbox environment.

An easy way to do it is creating a mock http server and for me, the easiest way of doing it is with node.js

Install node.js

Node.js offers a great page for downloading it, I prefer to use it the package manager options. For macOS, I use brew:

Mocking static methods (and constructors) using Mockito 3.5.0+

Wed, 30 Dec 2020 23:22:39 +0100

Since version 3.4.0, Mockito allows us to mock static methods, so you do not need to add powermock as dependency for most of your necessities.

I will not discuss why we should avoid static methods or helper class with static methods, as several articles do it quite well (1, 2, 3, etc..), we need to deal with static methods in the real world of development and mockito helps us to create unit tests when these static methods are involved.

Presentations

Sat, 26 Dec 2020 12:18:52 +0100

2021

Netcentric Summit 2021

Blog post: Kustomize & Crossplane: maximizing the utility of Kubernetes

2019

Netcentric Summit 2019

Blog post: JUnit 5: leveraging new features for testing

2017

VigoJUG 2017: Make Java Great Again!

Showing hidden files and folder on Finder (MacOS)

Sat, 26 Dec 2020 11:49:09 +0100

One thing that I miss from Windows is the Windows Explorer (yes, I like it). Finder is not as good as Windows Explorer…

Permanent solution

I like to see all my files, so to do it on MacOS , open a terminal and type

defaults write com.apple.Finder AppleShowAllFiles true
killall Finder

Revert changes

This setting is persisted even after a restart, so if you want to go back to your previous status (hidden files are hidden), open a terminal again and type:

Creating a blog using Hugo, travis-ci and Github pages

Thu, 24 Dec 2020 12:58:00 +0100

How I created this blog

As many github blogs born and die, my first post is how I created this blog using hugo as static page generator, travis-ci as CI/CD and github pages as page hosting.

As I do not want to have 2 separate repositories as proposed by Claudio Jolowicz in his tutorial, I will use the possibility to host the source under main and the page itself under another branch. Github proposes as a standard to use gh-pagesfor the content itself, so I will follow it.