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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

## Key points

What you learned in this chapter:

1. The Docker server manages containers. It's an isolated wrapper around an application, which seems similar to a virtual machine but is more lightweight.

1. Containers are launched from a single image template configured by a Dockerfile. Images for hundreds of applications are available on Docker Hub.

1. Custom images can also be made.

1. Containers are stateless, but can attach to Docker disk volumes or bind-mounted folders on the host OS.

1. Containers can expose application ports and communicate over internal Docker networks. Ports can also be exposed to the host OS.

1. Docker Compose can be used to launch multiple containers at once.

1. Orchestration tools such as Docker Swarm and Kubernetes can be used to launch and scale containers across multiple systems in production environments.

1. Docker is practical during development. However, it's not necessarily essential or practical to use it for every application component on production systems.

# Key points

What you learned in this chapter:

1. The Docker server manages containers. It's an isolated wrapper around an application, which seems similar to a virtual machine but is more lightweight.

1. Containers are launched from a single image template configured by a Dockerfile. Images for hundreds of applications are available on Docker Hub.

1. Custom images can also be made.

1. Containers are stateless, but can attach to Docker disk volumes or bind-mounted folders on the host OS.

1. Containers can expose application ports and communicate over internal Docker networks. Ports can also be exposed to the host OS.

1. Docker Compose can be used to launch multiple containers at once.

1. Orchestration tools such as Docker Swarm and Kubernetes can be used to launch and scale containers across multiple systems in production environments.

1. Docker is practical during development. However, it's not necessarily essential or practical to use it for every application component on production systems.

Let's discuss what we have covered so far.

Quick Recap

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

Quick Recap

Key points