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How Do We Run Our Rails App?

Quiz: A Brave New World

Running a Rails App in a Container

6 Lessons

Go hands-on with running and configuring Rails apps in Docker containers efficiently.

Dockerfile Creation and Explanation

Defining Our First Custom Image

Running a Rails Server with Our Image

Quiz: Running a Rails App in a Container

Fine-Tuning Our Rails Image

6 Lessons

Enhance your skills in optimizing Docker images for Rails applications with caching and CMD improvements.

A Default Command

.dockerignore File

The Image Build Cache

Caching Issues

Quiz: Fine-Tuning Our Rails Image

Describing Our App Declaratively with Docker Compose

8 Lessons

Take a closer look at managing Rails apps with Docker Compose for efficient development.

Getting Started with Compose

Launching the Rails app

Mounting a Volume Using Compose and Sharing Images

Starting and stopping services

Other Common Tasks

Quiz: Describing Our App Declaratively with Docker Compose

🍀 Challenge

Beyond the App: Adding Redis

6 Lessons

See how it works to integrate Redis with Rails using Docker for enhanced functionality.

Starting a Redis Server

Making a Manual Connection to Redis Server

Learning How Containers Communicate

Our Rails App and Redis Communication

Quiz: Beyond the App: Adding Redis

Docker for Rails Developer—Exam 1

Assessment

Adding a Database: Postgres

7 Lessons

Master the steps to integrate Postgres with Rails using Docker, ensuring secure, persistent configurations.

Starting a Postgres Server

Connecting to Postgres from a Separate Container

Creating Our App Databases

Restarting Our Rails Server with Database

Decoupling Data From a Container

Quiz: Adding a Database: Postgres

Playing Nice with JavaScript

6 Lessons

Learn how to use Docker, Webpacker, React, and RSpec for Rails JavaScript integration.

Front-End Options

Compiling Assets with Webpacker

A Hello World React App

Running Tests: Configuring RSpec

Quiz: Playing Nice with JavaScript

10.

Testing in a Dockerized Environment

8 Lessons

Get started with integrating RSpec, system tests, and JavaScript support in Dockerized Rails.

Ruby Testing Framework: RSpec

Our First Test using RSpec

Setting Up Rails System Tests

Running Tests: Providing Support for JavaScript

Seeing the Tests Run

Debugging

Quiz: Testing in a Dockerized Environment

11.

Advanced Gem Management

5 Lessons

Go hands-on with efficient gem management techniques using Docker for Rails projects.

The Downside to Our Existing Approach

Solution To Manage Gems Effectively

Testing The New Method Of Gem Management

Quiz: Advanced Gem Management

12.

Some Minor Irritations

5 Lessons

Grasp the fundamentals of managing Rails server start-up and shutdown in Docker environments.

Rails Server not starting?

Server Not Shutting Down Gracefully

Quiz: Some Minor Irritations

Closing Thoughts on Docker in Development

Docker for Rails Developer—Exam 2

Assessment

14.

The Production Landscape

10 Lessons

Gain insights into Docker's impact on operations, orchestration tools, and deployment strategies.

The “Ops” in DevOps

Container Orchestration

A Tale of Two Orchestrators: Swarm and Kubernetes

IaaS vs. CaaS

Provisioning Your Infrastructure

CaaS Platforms

Serverless for Containers

How to Decide What’s Right for Me?

Quiz: The Production Landscape

15.

Preparing for Production

5 Lessons

Follow the process of configuring, building, and distributing Docker images for Rails production.

Configuring a Production Environment

A Production Image

How to make Custom Image

Quiz: Preparing for Production

16.

A Production-Like Playground

10 Lessons

Master the steps to simulate, configure, deploy, and scale Docker environments for Rails apps.

Production-Like Environment

Exploring the Docker Machine

Introducing Docker Swarm

Describing Our App to Swarm

Migrating the Database

Deploying Our App on a Swarm

Tasks and Swarm’s Scaling Model

Scaling Up the Service

Quiz: A Production-Like Playground

17.

Deploying to the Cloud

8 Lessons

Step through Docker Swarm deployment on AWS and DigitalOcean, including scaling, visualizing, and resource cleanup.

The Cloud: Our Final Frontier

Deploying to AWS

Visualizing Containers

Scaling Up

Cleaning Up

Deploying to DigitalOcean

Quiz: Deploying to the Cloud

Docker for Rails Developer - Exam 3

Assessment

19.

Closing Thoughts and Next Steps

3 Lessons

Discover the logic behind Docker's capabilities, continuous learning areas, and efficiency enhancements.

Reflection on Journey

What Should I Learn About Next?

What More Can I Learn?

20.

APPENDIX

3 Lessons

Go hands-on with Docker installation, platform differences, and finding reliable Docker images.

Installing Docker

Platform Differences

Finding Images to Use

Course Author

The Pragmatic Programmers

Show License and Attributions

Project

Integrate Elasticsearch in the Ruby on Rails Application

intermediate

1 hour 45 min

Project

Integrate Elasticsearch in the Ruby on Rails Application

In this project, we’ll learn to create an interactive platform for displaying and searching products using Ruby on Rails and Elasticsearch.

intermediate

1 hour 45 mins

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