Docker series (Part 15): Build a compose file for multi container project

The tasks we will complete in this blog are:

This time we will use compose-assignment-2 folder from this repository
We have docker-compose.yml file here

We will checkout this repo in docker hub .

The docker-compose.yml will look like this

services:

  drupal:
    image: custom-drupal #image name (we have created a custo image in Dockerfile and used it here)
    build: .
    ports:
      - "8080:80" #setting ports checked from documentation or inspect of image
    volumes: # added volumes from documentation https://hub.docker.com/_/drupal
      - 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: # another container
    image: postgres #image used
    environment: #environmental variables
      - POSTGRES_PASSWORD=mypasswd #setting password
    volumes: #setting volume for thhs
      - drupal-data:/var/lib/postgresql/data

volumes: #mentioning all of the volumes names created within containers
  drupal-data:
  drupal-modules:
  drupal-profiles:
  drupal-sites:
  drupal-themes:

Here we created a custom drupal image and created that on the "Dockerfile"
So the dockerfile will have:

FROM drupal:8.8.2

RUN apt-get update \
    && apt-get install -y --no-install-recommends \
    git \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /var/www/html/themes

RUN git clone --branch 8.x-3.x --single-branch --depth 1 https://git.drupalcode.org/project/bootstrap.git \
    && chown -R www-data:www-data bootstrap

WORKDIR /var/www/html

now save them and go to terminal and run

docker-compose up

This will run the docker-compose.yml file

Now , go to web browser and type "localhost:8080"

You will see this.

Your terminal might look like this

NOW, press save & continue

Standard-> save & continue

Set the database type to Postgres

You can go to postgres repo in docker hub and see how default database works.

Now we will set some default information:

here we used the password we did set in the .yml file

from the advanced options, set the local host to service name which is "postgres" and press Save & continue

Set the other details and you are good to go !