Running a Drupal Site Using Docker Compose

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In this assignment, we will run a Drupal site with postgres database. With docker-compose

• We need two container drupal and postgres
• By default the drupal run on port 80, but we make sure from host machine we can access them from port 8080
• To persist the content of the site, we will do Named Volume mapping for the drupal site
• For postgres we will pass Database Name, Database User and Database Password. They will be required when we have to install drupal site from the browser.

Create a docker-compose.yml file,

touch docker-compose.yml

Our docker-compose.yml file should be as follows,

version: '3.1'
services:
  drupal:
    image: drupal:9.1.6
    ports:
      - '8080:80'
    volumes:
      - drupal-modules:/var/www/html/modules
      - drupal-profiles:/var/www/html/profiles
      - drupal-sites:/var/www/html/sites
      - drupal-themes:/var/www/html/themes
  postgres:
    image: postgres:13.2
    environment:
      - POSTGRES_DB=drupal
      - POSTGRES_USER=user
      - POSTGRES_PASSWORD=pass
volumes:
  drupal-modules:
  drupal-profiles:
  drupal-sites:
  drupal-themes:

Now run the containers,

docker-compose up

After all the containers spined up, we can go to http://localhost:8080/. To set up, we have to select the postgres as it is using underline. Also, DB Name, DB User and DB Password should be same as the environments we passed through the docker-compose.yml file.

By default the drupal expect the database at localhost, but our database DNS name is postgres. From the Advance Options we have to also update the database host name.

To clean up all the containers along with the volumes, we can use

docker-compose down -v