Docker Introduction

Docker and Containers

Docker Engine is an extremely powerful tool that allows developers to containerize applications. Docker themselves call containers,

a standard unit of software that packages up code and all its dependencies so the application runs quickly and reliably from one computing environment to another.

Containers are able to run

Getting Started With Docker

To get into using docker I first went to Play with Docker and made an account. Once you're in, you can run a new instance and create your very own Docker server.

Using Microservices and APIs in Docker

For this lab, I used Docker to create an application that displays articles from a news API. These are the steps I took:

• Create a new instance in Play with Docker

• Run git clone https://github.com/heyMP/news-api-workshop && cd news-api-workshop to clone the repo with the news API.

• Run cp dot.env.example dot.env to configure custom settings for the application.

• Login and get an API key from that you will put into the dot.env file that was created in the last step.

• Open port 4000 and copy the link of the page that failed to load. Paste the link in the same dot.env file

The file should look similar to this, except with your own API key

• Run the docker-compose up command to run the application

• Open port 80 and your application should come up and look like this: