This tutorial will explain how to install WordPress locally using docker.
Before you try this you need to make sure that you have docker installed in your system.

Create your project folder

mkdir wordpress-docker

Clone wpdiares/wordpress-xdebug

wp-diares/wordpress-xdebug using the official WordPress docker image and includes an extra configuration to enable xdebug which is a great tool that allows us to debug our custom code during development.

cd wordpress-docker
git clone https://github.com/wpdiaries/wordpress-xdebug.git xdebug

Create and edit docker-compose.yml

nano docker-compose.yml

version: '3.8'

services:

  wordpress:
    container_name: wordpress-wpd
    restart: always
    build:
      dockerfile: Dockerfile # this line is actually redundant here - you need it only if you want to use some custom name for your Dockerfile
      context: ./xdebug # a path to a directory containing a Dockerfile, or a url to a git repository

    ports:
      - "80:80"

    environment:
      VIRTUAL_HOST: mydomain.com, www.mydomain.com
      WORDPRESS_DB_HOST: db
      WORDPRESS_DB_NAME: mydbname
      WORDPRESS_DB_USER: mydbuser
      WORDPRESS_DB_PASSWORD: mydbpassword
      # Set the XDEBUG_CONFIG as described here: https://xdebug.org/docs/remote
      #For xdebug2 use remote_host
      # If you are using mac client_host = host.docker.internal
      XDEBUG_CONFIG: client_host=192.168.1.2

    depends_on:
      - db

    volumes:
      #this will create a www folder in wordpress-docker folder with your wordpress installation
      - ./www:/var/www/html

    networks:
      - backend-wpd
      - frontend-wpd


  db:
    container_name: mysql-wpd
    image: mysql:8.0.20
    command: --default-authentication-plugin=mysql_native_password
    restart: always

    environment:
      MYSQL_ROOT_PASSWORD: mydbrootpassword
      #MYSQL_RANDOM_ROOT_PASSWORD: '1' # You can use this instead of the option right above if you do not want to be able login to MySQL under root
      MYSQL_DATABASE: mydbname
      MYSQL_USER: mydbuser
      MYSQL_PASSWORD: mydbpassword

    ports:
      -  "3306:3306" # I prefer to keep the ports available for external connections in the Development environment to be able to work with the database
                     # from programs like e.g. HeidiSQL on Windows or DBeaver on Mac.

    volumes:
      - /opt/projects/wpd/mysql:/var/lib/mysql

    networks:
      - backend-wpd


networks:
  frontend-wpd:
  backend-wpd:

Edit hosts

You need to edit your hosts file and add the domain you specified in VIRTUAL_HOST in docker-compose.yml .

nano /etc/hosts
127.0.0.1 mydomain.com

Start docker and deploy containers

In your terminal type the following to start docker and deploy containers.
docker-compose up -d

Now open your browser visit the domain you specified and you should see the WordPress installation page