Develop a simple Kubernetes operator from scratch — When a task operating in a Kubernetes cluster becomes repetitive, it probably means that we are not taking advantage of all the features that Kubernetes offers, because it is designed for automation. Normally, these tasks are performed by human operators, who have deep knowledge of how the system ought to…

Continuous Integration and Continuous Deployment pipelines are automated processes, part of de DevOps ecosystem, that can help you improve the quality of your software through its whole lifecycle and make production deployments in a more predictable and efortless way. In this article, we are going to configure GitHub Actions for…

Concurrency in Go — When a program or an algorithm is concurrent, it means that it is designed to be decomposed into smaller parts that will be executed in independent processes in parallel. In other words, as Rob Pike said: “Concurrency is about dealing with lots of things at once. Parallelism is about doing…

In this article we will deploy an Internet of Things application in a a bare metal Kubernetes cluster made of Raspberry Pis. We will also deploy a monitoring system for having metrics about this infrastructure. If you are curious about the implementation details of the application to be deployed, check…

In this article, we’ll have a look at a feature that I’ve implemented in an Internet of Things platform. It consists of displaying a real-time chart of the measurements performed in the registered things of the platform. Architecture For this case, a “thing” is a Raspberry Pi with temperature and humidity…

Arrays are part of our daily basis as programmers. Let’s magine that you are building and Ecommerce application and at some point you have an array like the following one: const skus = [ { "productId": 1, "colorId": 1, "sku"…