OpenCart Docker Setup Guide

This guide will help you set up OpenCart using Docker and Docker Compose.

Prerequisites

• Docker installed on your system
• Docker Compose installed on your system
• Basic understanding of Docker concepts

Setup Instructions

1. Create a new directory for your OpenCart project mkdir opencart-docker cd opencart-docker
2. Save the docker-compose.yml file Create a file named docker-compose.yml and paste the content from the Docker Compose configuration provided.
3. Customize environment variables (Optional) Before running the containers, you might want to modify the environment variables in the docker-compose.yml file:
   • OPENCART_HOST: Set to your domain name or IP address if deploying to production
   • OPENCART_USERNAME: Admin username
   • OPENCART_PASSWORD: Admin password
   • OPENCART_EMAIL: Admin email
   • MARIADB_USER: Database username
   • MARIADB_PASSWORD: Database password
4. Start the containers docker-compose up -d The -d flag runs the containers in the background (detached mode).
5. Wait for initialization It may take a minute or two for OpenCart to fully initialize. You can check the logs with: docker-compose logs -f opencart
6. Access OpenCart
   • Frontend: http://localhost:8080
   • Admin panel: http://localhost:8080/admin
   • Login with the username and password you set in the environment variables

Volume Information

The setup uses Docker volumes to persist data:

• opencart_data: Stores OpenCart files and configurations
• postgres_data: Stores the PostgreSQL database files

Managing Your OpenCart Installation

Stopping the containers

docker-compose down 

Stopping and removing volumes (will erase all data)

docker-compose down -v 

Updating to a newer version

1. Pull the latest images: docker-compose pull
2. Restart the containers: docker-compose down docker-compose up -d

Security Considerations for Production

For a production environment, consider:

1. Using secure passwords: Change all default passwords in the docker-compose.yml file
2. Setting up HTTPS: Either through a reverse proxy or by configuring the SSL settings
3. Regular backups: Set up a backup strategy for your volumes
4. Network isolation: Customize the network configuration for better security

Troubleshooting

Database connection issues

If OpenCart cannot connect to the database, ensure:

• The MariaDB container is running (docker-compose ps)
• The environment variables are correctly set
• The network is properly configured

Permission issues

If you encounter permission issues with the volumes:

docker-compose down sudo chown -R 1001:1001 ./path/to/your/volumes docker-compose up -d 

Logs

Check the logs for any issues:

docker-compose logs opencart docker-compose logs postgres