Tomas Fernandez

If you can’t decide if testing in production is a foolish or a genius idea, this tutorial will definitely help.

Change is inevitable, and while commits on Dockerfiles are easy to control, the impact of those changes on the resulting image are not. Fortunately, where there’s a need, there’s a tool.

Learn how to build and deploy a face-recognition application using serverless functions in AWS. Along the way, we’ll discover the Serverless Application Model, how to test Lambdas, and optimize monorepo CI/CDs.

In this article, I’d like to talk about one of the most complex forms of testing, one that will tell us when we have met our software design goals: Acceptance Testing.

Without security in your CI/CD, sooner or later, a vulnerability will sneak in, and before you know it, someone will be mining at your expense.

A recent survey by Red Hat found that more than half of the Kubernetes environments are misconfigured. Even worse, about 90% of respondents had at least one security incident last year, leading to the very first wave of Kubernetes-native malware. In this tutorial, we present three tools to validate and secure your Kubernetes deployments.

We don’t pay attention to containers — until something breaks. Structure tests let us check container vital before deployment.

Is your CI/CD pipeline slow? Do wait times make you feel unproductive? Parallel testing is an indispensable technique for reducing wait times. And mastering it is key to getting the most out of CI/CD.

Is Earthly the Docker Killer? Docker is great, as long someone else writes all the shell scripts and Dockerfiles. Earthly is a new build tool that works on top of Docker and brings a much welcome friendlier user experience.

A tutorial showing how to configure TypeScript to work in a monorepo and building everything with CI/CD.

Do you have multiple JavaScript or Node projects in one repo? If so, you need to learn how to use Lerna – the JavaScript monorepo manager.

Learn how to build Python projects and monorepos at scale with the Pants Build System.

AWS App Runner is a service for people just wanting to run their containers without hassles. In this post, we’ll learn how to use this far-simpler-than-ECS-and-Fargate alternative, explore how it fares against its competitors and, of course, how to continuously deploy software with Semaphore.

Monorepos are coming into mainstream, and JavaScript is one of the reasons. Learn how to leverage Semaphore’s monorepo innovations.