How to painlessly set up your Ruby on Rails dev environment with Docker

You've likely heard about Docker terms like containers, images, services, volumes, network, Dockerfile, docker-compose file, right? Or you've watched some videos about what it is, but you're not sure how can it apply to your daily life as a developer?That's what I first thought after watching videos about Docker. Not only can Docker run web-apps, servers, and databases, but it can also be a local development environment! I wrote this article not only so you can learn how to do it, but also for me, so I won't forget it. Let's get started!.