Install and configure Docker Compose

Instructor

Julian

Instructor

Jamie

We're going to install a MySQL database to persist our data. And we'll install it using Docker and Docker compose, which is a great platform agnostic way to install and manage development databases.

Keep in mind that we'll only be using Docker for local development. We'll use a hosted database for staging and production, and we'll host our Next.js application using Vercel, which does not need Docker.

Install Docker if you don't already have it by following their getting started guide, based on your operating system.

Create a file called docker-compose.yml and define a service called database. It will describe a MySQL image, along with environment variables like database name and credentials. It will also expose the service on port 3306.

Here's what the final result should look like:

version: "3"

services:
  database:
    platform: linux/x86_64
    image: mysql
    restart: always
    environment:
      - MYSQL_DATABASE=mydb
      - MYSQL_ROOT_PASSWORD=password
      - MYSQL_USER=user
      - MYSQL_PASSWORD=password
    ports:
      - "3307:3306"

Run docker compose up to start and expose the database. You can now access it using the following URL: mysql://root:password@localhost:3307/mydb

#5 Install and configure Docker Compose