Diego Pacheco Tech blog

The DORA DevOps Report 2021 is out. Thats a very interesting report about DevOps and SRE covering 32K professionals over the world during the COVID-19 Pandemic time. We are in difficult times and having this data is very very interesting. IMHO We lose the battle, like Agile but at the same time, the report shows some interesting findings which always gave me hope.  I have read this report since the beginning and always find it interesting and super useful. Today I want to do something slightly different, I made a video commenting on some of my thoughts on the report. I hope you guys like it, so let's get started!

Tickets! Some people love them others hate them. I for sure dont have much love, however, I can see both sides of the same coin. There are lots of tracking systems such as Bugzilla, Track, Jira, GitHub Issues, and many others. There are companies with complex workflows with lots of approvals and complicated steps.IMHO there is little value in complex workflows, I understand the reasons why companies might arrive there but still think is not the way. Tickets can be used for multiple reasons, some could be valid, and others could be actually bad practices, meaning hiding inefficiencies. Let's take a look at the 2 sides of the same coin.

Properties are around since java.  Properties are a persistent form of K/V pair which is mainly used for configuration. Configuration can be extrapolated all the way down to Feature Flags, Feature Toggles, and Canary. Java properties are cool because they are a simple API that allows you to do simple and yet powerful programing around them. There are 2 interesting projects enhancing properties such as Apache Commons Configuration and Netflix Archaius . These projects are pretty cool and give you killer functionally however the Java Stand SDK can also be pretty powerful if you have enough creativity and know-how to use it. So today I want to share a video exploring the Java Properties API in Depth showing how we can do some pretty powerful and simple configuration management for Dynamic Configurations, Feature Flags, Toggles, and more. So Let's get started!

I want to share my cents about the post: " On the Diverse And Fantastical Shapes of Testing ". First of all, I believe this is a very interesting subject and yet still see very few engineers talking about it. People mostly take tests for granted. Secondly, I would like to acknowledge the parts I agree with on this post mainly around the concept of Sociable and Solitary Unit Tests are quite useful and show be widespread. Also with the need for teams to have reliable, fast, Bounded(Isolated) and not Flacky on Justin tweet . Now that I acknowledge that, let me elaborate on what I think we are missing and why IMHO the pyramid is dated and we need a mentality shift. I have 4 points I want to elaborate on and give more context.

Git is a very powerful tool for source code version control. Often we do POCs and no one whats to waste time while you are doing a POC so often people dont pay much attention to their commit messages(including myself). However the POC grows and you reach the point to productionize the solution, all great but what you do with your poor commit messages? Good messages are critical for good configuration management, release management, and code hygiene. So what can we do? Well git rebase can rescue us. Git rebase is also useful in other use cases where you need to have a specific format of messages because your CI/CD tool does some validations or you are hunting a bug down and you want to drop a bad commit or you are cherry-picking commits to doing a chirurgical release. So I made a short video showing rebase commands in action. We also will use squash which is an interesting way to combine your commits in one for better trackability. So Let's get started.

This is the 3rd and final post on the Apache Mina series.  I highly recommend you check out posts I and II.  tcpdump is very important networking debugging tool. tcpdump allows us to capture traffic because on a specific port. Wireshark is a visual(there is a terminal version as well) network capture and analyzer tool. We will use tcpdump to capture traffic between our mina TCP server app and a telenet client session. We will use the tcpdump capture to feed Wireshark and we will use Wireshark to understand what's going on between the client and the server on the network stack. Wireshark has a killer feature to follow TCP flow: meaning you can see all exchanges from client and server. So I made a video showing in detail this whole thing. So Let's get started.

This is a very interesting game. Factorio is a game about automation. If you work as an engineering or DevOps/SRE or like Lean and Queue theory this is a game for you. Factorio is highly, highly, highly addictive. It's very much like real life with the need for Refactoring, Technical Debt, Architecture, the pressure to deliver, constant tech updates and you have to catchup, debugging why you product halt, and much more. You can either play alone or with friends. It's 100% fun, especially if you are in the tech industry like I'm. The game reminds me a lot of StarCraft 2 but much more focused on automation at scaling them battles and micro. So I made a quick video showing some of the ideas about the game and I hope you guys like it and have fun. Let's get started! 

SRE is pretty how right now. Several companies are interested in but do people really know what it means and how it can be done? Lots of people asked me about what I think about SRE and what's the relation with DevOps. So I record this video and hopefully will help you to understand what it means and grasp some of the basic concepts and practices.  If you are doing DevOps correctly you are doing SRE. SRE is like the DBA in the 90s easily one of the most important folks on the company keeping the business running and make sure users have a good experience in sense of no service disruption or no slowness. So let's get started!

Could-Native Microservices is not just about ISOLATION and small specialised services. In order to have full benefit from Cloud-Native Microservices, you will need to make sure you architecture and infrastructure are Anti-Fragile and the only way to make sure that happens is with Chaos Engineering and SRE / DevOps Engineering . Today I'm sharing the slide deck and a video version of the lecture I delivered on 1st AWS meetup in Porto Alegre and the 6th AWS Meetup in Sao Paulo this year. Enjoy!