Docker and Containers for Rails Developers

Setting up a Rails application across different development machines often leads to the classic "it works on my machine" dilemma. By learning how to containerize your Rails environment, you can ensure consistent, reproducible development and deployment workflows. This text-based course guides you from containerization novice to confidently running Rails applications inside Docker. You will start with the fundamental concepts of images and containers before moving on to practical configurations tailored specifically for the Rails ecosystem. What you'll learn: - Understand the core differences between Docker images, containers, and virtual machines. - Configure a Dockerfile specifically optimized for Rails applications using modern best practices. - Manage database dependencies and environment variables using Docker Compose. - Apply multi-stage builds to minimize image size and improve deployment efficiency. - Persist application data and assets using Docker volumes. - Troubleshoot common containerization errors in a Rails development workflow. You will begin by learning fundamental container terminology and architecture. From there, you will progress through step-by-step written guides to build, run, and connect a Rails application with a database container, culminating in production-ready multi-stage configuration patterns. This course is designed for Rails developers who are new to Docker and containerization. No prior DevOps or Docker experience is required. Start reading today to simplify your Rails development workflow with Docker.