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AWS_DEFAULT_REGION

INTERNAL_IP

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SWARM_TOKEN

BUCKET

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Cloud

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This course is your field manual for building Rails applications with Docker. 

To kick things off, you’ll start by learning the basics of Docker like architecture, images, and containers. You will then be introduced to Docker Compose and use it to build up to a multiservice application with Redis.

You will then work to get your Dockerized setup to play nice with JavaScript, using both the standard asset pipeline and webpacker, Rails’ newest approach for integrating modern JavaScript front ends.

Lastly, you will learn how to prepare your Rails app for production. Once ready, using Docker’s own tools, you will provision machines, create a cluster, deploy the app, and scale the app’s resources to meet its changing needs.

By the end of the course, you will be able to confidently use Docker in any of your further projects.

Docker for Rails Developers

## Orchestration layers

There are currently two competing orchestration layers that can be used with Docker: **Swarm** and **Kubernetes**. Both have many similarities but also significant differences. 

## Swarm



# Orchestration layers

There are currently two competing orchestration layers that can be used with Docker: **Swarm** and **Kubernetes**. Both have many similarities but also significant differences. 

# Swarm



Learn about the two orchestration layers that can be used with Docker.

A Tale of Two Orchestrators: Swarm and Kubernetes

Introduction

A Brave New World

Running a Rails App in a Container

Fine-Tuning Our Rails Image

Describing Our App Declaratively with Docker Compose

Beyond the App: Adding Redis

Docker for Rails Developer—Exam 1

Adding a Database: Postgres

Playing Nice with JavaScript

Testing in a Dockerized Environment

Advanced Gem Management

Some Minor Irritations

Docker for Rails Developer—Exam 2

The Production Landscape

Preparing for Production

A Production-Like Playground

Deploying to the Cloud

Docker for Rails Developer - Exam 3

Closing Thoughts and Next Steps

APPENDIX

A Tale of Two Orchestrators: Swarm and Kubernetes

Orchestration layers

Swarm