Docker Image Tutorial

In this article, I'll show you how to build and run a Docker image. Docker is a valuable tool for developing and deploying applications. It can seem complicated when you're first getting started, so I'll map out the process step-by-step for you. I'll be using Python code examples, but you can easily adapt this tutorial to your language of choice.

Install Docker

If you want to follow along, you'll need a system with Docker installed on it. For a Windows or macOS desktop, you can download and install the program from the Docker Desktop website. With Linux, you can install it using the package manager for your distribution. I'll be using examples from the Linux command line, but they'll be simple enough that you can adapt them to Windows or Mac.

Feature Flags in Rails: Get Started Quickly and Easily

Creating dynamic applications with Rails (or any language + framework combo) has become more of an ongoing process than a single event. Users often require the best experience when using apps, and this often means that a team of developers ought to continue improving their code on a regular basis. Feature flags in Rails are the way to deliver new functionality and, well, features to users without risking the user experience factor.

There are various reasons why using feature flags has become the norm these days, but you should be clear on when and how to implement them to your feature deployment scenario. This article will help you understand the benefits of using feature flags. We’ll also show you an easy way to have them ready and waiting when using Rails. You may as well get acquainted now since they seem to be here to stay.