From Feast to Fiasco: Demystifying the "docker-compose wordpress mysql connection refused" Error

Imagine your WordPress as a hungry customer at a fancy restaurant (MariaDB), while Docker acts as the waiter who takes the order. When the customer gets a "connection refused" error, it means the waiter couldn't reach the kitchen (MariaDB). Now, let's investigate the possible reasons for this culinary (and coding) conundrum.

Potential Culprits:

Sample Code Snippets:

Here's a peek at your docker-compose.yml file with some troubleshooting tweaks:

version: "3.8"

services:
  db:
    image: mariadb:latest
    restart: unless-stopped
    ports:
      - "3306:3306"
    environment:
      MYSQL_ROOT_PASSWORD: "your_strong_password"
      MYSQL_DATABASE: "your_database_name"
      MYSQL_USER: "your_database_user"
      MYSQL_PASSWORD: "your_database_password"

  wordpress:
    image: wordpress:latest
    restart: unless-stopped
    ports:
      - "80:80"
    environment:
      WORDPRESS_DB_HOST: "db" # Points to the MariaDB container name
      WORDPRESS_DB_NAME: "your_database_name"
      WORDPRESS_DB_USER: "your_database_user"
      WORDPRESS_DB_PASSWORD: "your_database_password"
    network: bridge # Optional, for improved networking

Relevant Problems and Solutions: