Category Software Engineering

In the Developer Interview series, we talk to engineers who use Semaphore and pick their brains about how they work, what wisdom they would like to pass on, and the most challenging problems they’ve faced during developing. This month, we had a chat with Jeffrey Chupp, the Director of Engineering at Dribbble.

In the Developer Interview series, we talk to engineers who use Semaphore and pick their brains about how they work, what wisdom they would like to pass on, and the most challenging problems they’ve faced during developing. This month we had a chat with Avichay Eyal, the man behind Slim.js – the fastest open source […]

Adoption of serverless technology is surely growing, with emerging product companies who built on top of it. One of them is CloudZero, a Semaphore customer, who recently wrote a detailed article about their experience in achieving continuous delivery for their all-serverless system.

Introduction In this tutorial, we’ll be looking at one of the main use cases for test doubles in Elixir: aiding in the interaction between domain logic and impure components that exist over the boundaries of an application. Tests relying on such components are usually brittle, and need to reach out to external resources whose state […]

At Semaphore, for years we’ve been happy to support open source projects with a free continuous integration service. Today we’re increasing the free CI/CD capacity on all open source organizations from 2 to 4 Boxes.

Earlier, we launched Semaphore Boosters, a feature that allows you to automate parallelizing your RSpec and Cucumber tests in a few clicks. The feature has helped many teams to reduce their Rails CI build times by as much as 2 hours in some cases. Initially, the feature was available only to some users. It has […]

This post is adapted from Rails Testing Handbook, a free ebook on building sustainable Rails apps with BDD. In this tutorial, we will guide you through the process of generating a new Rails 5 application, with all the necessary tools to set up a behavior-driven development (BDD) flow. We will set up 5 tools that […]

Introduction This tutorial is the last in a series of tutorials concerning the container orchestration tool, Docker Swarm. In this series, we’ve already seen how to establish a Swarm cluster, schedule services to the cluster’s nodes, make those services consumable from within and outside the cluster, and update and rollback services in-flight. We’ve mainly focused […]

Ruby on Rails was the first major web framework to include automated tests as part of every new project. The effects have been enormously positive. Many developers have learned to write tests well, which in turn helped them get better at design. Experienced developers were drawn by Rails’ focus on productivity and beautiful code. Their […]

Introduction In this tutorial, we’ll cover how to create a server with Amazon Web Services, do configuration management with Ansible, deploy Rails applications with Capistrano, and how to do continuous integration with Semaphore. All the code from this tutorial is available in a repository on GitHub. If you get stuck, you can always compare it […]

If you’ve been using PhantomJS for continuous integration, please switch to Headless Chrome. Semaphore provides recent versions of both Chrome and chromedriver preinstalled out of the box.

This is a guest post by Brendon Murphy, CTO at Kajabi. Read it to find out how Kajabi got to a 10-minute CI build for 100k lines of Rails code and got rid of tedious manual test suite balancing with Semaphore Boosters, fully automated parallel CI for Rails. Kajabi is a SaaS company positioned squarely […]