I will assume that you have already installed docker. If you haven't installed docker please visit https://www.docker.com/ to download and install docker for your platform.
Running Drupal in Docker
Drupal requires MySql to function. So before deploying docker you need to deploy a docker instance of MySql/MariaDB. To deploy a MySql Instance on Docker issue the following command
docker run --name mysql -e MYSQL_ROOT_PASSWORD=yourpassword -p 3306:3306 -d mysql:latest
This will deploy the MySql Docker instance
Deploy Drupal Container
docker run --name drupal --link MYSQL-NAME:mysql -p 8000:80 -e MYSQL_USER=root -e MYSQL_PASSWORD=yourpassword -d drupal
This will deploy the Drupal container. Match the MySql credentials to the above command. You can visit the container by visiting http://localhost:8000 or http://YOUR_IP_ADDRESS:8000
In Drupal during installation go to advanced options in Database setup and set the host to the container name of mysql, which in the above case is mysql
Explanation of switches
--name=the name of the instance. You can give it any name you want
-d Run in detached mode
-p Map ports of docker container to local ports
-e Set environment Variables
If you already have images of mysql and drupal
Create a Network by issuing the following command
docker network create drupalnet
docker run --name mysql -e MYSQL_ROOT_PASSWORD=password -p 3306:3306 --net=netw -d mysql:latest
docker run --name drupal -p 8000:80 --net=netw -d drupal:latest
This will create a Network and connect the two containers together.
For learning more about Drupal Visit Getting Started with Drupal. For more information on Drupal on Docker visit Drupal in docker hub.
Hope you find it useful
