Imagine the scenario (or not) that you’ve got an old backup of a site sitting around. Code, imagery, and database exports. Now a colleague just wants to check an old order on that - now depreciated - system. I’ll attempt to briefly explain how to get a MySQL database running locally, and then how to import your backup. Run Up Local Database Server I’ll be using docker as I believe it is the most convenient and OS-agnostic method. Download docker from the official website: https://www.docker.com Once that is installed and running. Create a file (I’d suggest next to where you keep your MySQL backups) called . docker-compose.yml Paste the following in: version: '3.1'

services:
  db:
    image: mariadb:10.3
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: notSecureChangeMe

  phpmyadmin:
    image: phpmyadmin
    restart: always
    ports:
      - 8080:80 This will run up an instance containing two containers, one with and the other . You don’t need the , but without being condescending I figured a GUI might be helpful for most people especially if you’re googling how to run up a MySQL backup! MariaDB PHPMyAdmin PHPMyAdmin Navigate to the directory of and run the command: docker-compose.yml docker-compose up -d After a few minutes your new docker instance should be running and accessible when you visit: http://localhost:8080 Import Backup via PHPMyAdmin From within PHPMyAdmin accessible via https://localhost:8080 by default you can use the GUI to import your backup. Import a big file via PHPMyAdmin The above will work for 90% of you, and hobbyists. However, if you’re sitting on 15 years worth of data like I was with a big fat 800MB+ MySQL file you might encounter some issues. So in a nutshell we are going to increase the and of your local containers. PHP timeout max file upload limit See below for a revised version: '3.1'

services:
  db:
    image: mariadb:10.3
    restart: always

    volumes:    
    - /path/to/backupfiles/mysqlconf:/etc/mysql

    environment:
      MYSQL_ROOT_PASSWORD: notSecureChangeMe

  phpmyadmin:
    image: phpmyadmin
    restart: always
    ports:
      - 8080:80
    environment:
      UPLOAD_LIMIT: 1G Within that same directory, I also create a directory called containing the file . mysqlconf my.cnf Paste the below into : my.cnf [mysqld]
max_allowed_packet = 1G
innodb_log_file_size = 2G
innodb_log_buffer_size = 512M
innodb_strict_mode = 0    
innodb_file_per_table=1
innodb_file_format = Barracuda Import Backup directly from Command Line If PHPMyAdmin is not playing then you can bypass it entirely and import via the command line. Note: this is why I share a volume with the Host OS with the Docker Container above. Access the cmd line of your docker container (the one running MariaDB, not PHPmyadmin) and import the file manually. A GIST is available : here Conclusion & Summary Install Docker Run up containers using docker-compose.yml Import File - either via phpMyAdmin or Manually I hope that explains things clearly. If not, get in touch and I can amend the article. I am serious. If you’re stuck or frustrated, I’d much prefer you to bother me than spend another X amount of house banging your head against your desk. Here is my Labrador with eyebrows drawn on for some levity after that dry article.

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