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Gain insights into Docker's architecture, images, and containers. Learn about running databases, using WordPress and Node.js with Docker, and confidently apply Docker in web development projects.

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Docker is the most useful web development tool you’re not using. This course is your guide for building all kinds of web applications with Docker.

You will be introduced to Docker basics including its architecture, images, and containers. Then you'll run various databases and view them via CLI or Adminer. Next, you will learn how easy it is to use WordPress with Docker. After that is the Node.js app and its live editing and debugging with Chrome's devTools. Finally, you will make your own project to practice your Docker knowledge.

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

Docker for Web Developers

# Docker Hub
For the most part, Docker Hub is to Docker what Github is to Git.

You will primarily use Docker Hub to locate and use application images like Apache, PHP, Node.js, Python, MySQL, or MongoDB. However, it's also possible to push your own application images to Docker Hub.


# Why push an image to Docker Hub?

In reality, many developers never will. Your `Dockerfile` can be added to any project repository to build an application image during development or as part of a production deployment process.

However, pushing an image to Docker Hub offers several benefits:

1. It is easier to distribute a pre-built and tested image with your team.

1. The image can be pulled on production servers. Deployment is simpler and faster because the image has already been built.

1. A published image can be used by anyone. Your application can be shared with users, clients, and other developers throughout the world.

Docker Hub allows you to create any number of public repositories. These appear in search results and can be used by anyone.  But remember you will be distributing your application's source code.

You can also create one private repository and [purchase more if necessary](https://hub.docker.com/billing/plan). Access to private repositories can be granted to named organizations and individual Docker Hub users.

> 📌 You can make your Docker Hub account [here](https://hub.docker.com/).

# Docker Hub alternatives

As well as Docker Hub, there are plenty of alternative hosted and self-hosted container registries. All provide private repositories with varying price points:



This chapter uses Docker Hub, but the process is similar to other repositories. Typically, you will log into a different system and/or specify a URL when pushing the image.


Learn what Docker Hub is, how pushing images helps, and what alternatives you can use. 

Knowing Docker Hub 

Learn what Docker Hub is, how pushing images helps, and what alternatives you can use.

Knowing Docker Hub

Why Docker for Web Developers?

Introduction

What is Docker?

Launch a MySQL Database with Docker

WordPress Development with Docker

Application Development with Docker

Push Your Docker Image to a Repository

Docker Orchestration on Production Servers

Docker CLI Commands

Dockerfile and Docker Compose

Project: Never-Ending Quizzery

Assessment - Docker for Web Developers

APPENDIX

Knowing Docker Hub

Docker Hub

Why push an image to Docker Hub?