How to Install WordPress with Docker Compose (Fast, Secure & Scalable)

Introduction:

Looking for a lightning-fast, isolated, and reproducible WordPress setup? Docker Compose is the best way to run WordPress without bloated local server stacks like XAMPP or MAMP.

In this guide, you’ll learn:
Step-by-step Docker Compose WordPress setup (with code examples)
Best practices for security & performance
How to persist data (so you don’t lose your site)
Troubleshooting common Docker issues

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Why Use Docker Compose for WordPress? (Local)

	Docker	XAMPP/MAMP
Startup Time	2-5 sec	30-90 sec
Resource Usage	300MB	1GB+
Multiple Projects	Easy	Painful

🚀 Faster than traditional setups – No manual Apache/MySQL/PHP configs.
🔒 Isolated containers – No conflicts with other dev environments.
📦 Reproducible deployments – Same setup works on any machine.
⚡ Easy scaling – Need Redis or Nginx? Just add a service.

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Prerequisites

Before starting, ensure you have:

• Docker installed (Download Docker)
• Docker Compose (included with Docker Desktop)
• Basic terminal knowledge (you’ll run a few commands)

Step 1: Create a docker-compose.yml File

Create a new directory for your project and add this optimized docker-compose.yml:

version: '3.8'
        
services:
  db:
    image: mysql:8.0
    volumes:
      - db_data:/var/lib/mysql
    environment:
      MYSQL_ROOT_PASSWORD: your_root_password
      MYSQL_DATABASE: wordpress
      MYSQL_USER: wordpress
      MYSQL_PASSWORD: wordpress
    networks:
      - wordpress_network
        
wordpress:
    depends_on:
      - db
    image: wordpress:latest
    ports:
      - "8000:80"
    volumes:
      - wp_data:/var/www/html
    environment:
      WORDPRESS_DB_HOST: db
      WORDPRESS_DB_USER: wordpress
      WORDPRESS_DB_PASSWORD: wordpress
      WORDPRESS_DB_NAME: wordpress
    networks:
      - wordpress_network
        
volumes:
  db_data:
  wp_data:
        
networks:
  wordpress_network:
    driver: bridge

Key Optimizations in This Setup:

🔹 Persistent volumes (db_data, wp_data) – Prevents data loss on container restart.
🔹 Isolated network – Improves security by separating WordPress & MySQL.
🔹 Latest stable versions – Uses MySQL 8.0 and WordPress latest.

Step 2: Launch WordPress with Docker Compose

Run this command in your project directory:

docker-compose up -d

• -d runs containers in the background (detached mode).
• Wait ~30 seconds for MySQL to initialize.

Access WordPress:
👉 Open http://localhost:8000 in your browser.