Wordpress and PhpMyAdmin inside Docker container

Let's see how to run WordPress and PHPMyAdmin inside a Docker container.
Part of the Docker for web developers course.

We will first create an environment file. Its purpose will be to save sensitive credentials data:
.env

MYSQL_ROOT_PASSWORD=mysql_root
MYSQL_ROOT=wp_user
MYSQL_PASSWORD=wp_password

Now it is time for the docker-compose.yml file where we will be describing our containers(services):

version: '3.3'

services:
  db:
      image: mysql:latest
      env_file: .env
      environment:
        - MYSQL_DATABASE=wordpress
      volumes:
          - dbdata:/var/lib/mysql
      command: --default-authentication-plugin=mysql_native_password

  wordpress:
    depends_on:
      - db
    image: wordpress:latest
    env_file: . env
    environment:
      - WORDPRESS_DB_HOST=db
      - WORDPRESS_DB_USER=$MYSQL_USER
      - WORDPRESS_DB_PASSWORD=$MYSQL_PASSWORD
      - WORDPRESS_DB_NAME=wordpress
    volumes:
      - wordpress:/var/www/html
    ports:
      - "80:80"
   
  phpmyadmin:
    depends_on:
      - db
    image: phpmyadmin/phpmyadmin:latest
    env_file: .env
    environment:
      PMA_HOST: db
      MYSQL_ROOT_PASSWORD: $MYSQL_ROOT_PASSWORD
    ports:
       - 3333:80

  volumes:
    wordpress:
    dbdata:

Then you can launch: docker-compose up This will create networks between containers, volumes (to store persistent data), will pull images, configure them in order to create and run the containers.
We will be bringing up MySQL, PHPMyAdmin, and docker containers(services).

You'll need to wait a bit until everything is initialized and then you can browse:
http://127.0.0.1:80 for WordPress
as well as
http://127.0.0.1:3333 for PHPMyAdmin. Please note that for the PHPMyAdmin we need to use user: root, and password: mysql_root

Congratulations and enjoy learning !