Finding Images to Use

Explore how to find and select trustworthy Docker images for services like Postgres. Understand the use of Docker Hub and CLI commands to identify official images that ensure security and updates for your Rails projects.

We'll cover the following...

- Postgres
- Using Docker Hub
- Using the Docker CLI
- 🍀 Practice

Throughout the course, we use a number of different known images. You may be wondering how you would find images to use if you had to do this yourself. It is important for you to be able to figure things out for yourself, so let’s delve into this now.

Postgres

Imagine we want to run a Postgres database, and we need to find an image that provides it. There are two ways you can go about finding images: using Docker Hub, Docker’s online service for storing images or Docker’s command-line interface (CLI). Let’s look at both in ...

1.Introduction

2.A Brave New World

3.Running a Rails App in a Container

4.Fine-Tuning Our Rails Image

5.Describing Our App Declaratively with Docker Compose

6.Beyond the App: Adding Redis

Assessment

7.Adding a Database: Postgres

8.Playing Nice with JavaScript

9.Testing in a Dockerized Environment

10.Advanced Gem Management

11.Some Minor Irritations

Assessment

12.The Production Landscape

13.Preparing for Production

14.A Production-Like Playground

Project

15.Deploying to the Cloud

Assessment

16.Closing Thoughts and Next Steps

17.APPENDIX

Finding Images to Use

Postgres