4b_Generating_PHP_Docker_Images.md

Lab 4 - Generating PHP Docker Images

1. Create an ini file, disabling exec function

In vendor/magento/magento-cloud-docker/images/php/cli/etc/ create php-disable-functions.ini and add the following:

  disable_functions=exec     

2. Add ini file to Dockerfiles

In vendor/magento/magento-cloud-docker/images/php/cli/Dockerfile add the following line around line 190.

  ADD etc/php-disable-functions.ini /usr/local/etc/php/conf.d/zz-disable-functions.ini

3. Generate PHP configuration

This command can be run in docker or docker-compose depending on if the containers are running.

Containers Running

  docker-compose run deploy vendor/bin/ece-docker image:generate:php

Containers not running

  docker run -it -v $(pwd):/app/ -v ~/.composer/:/root/.composer/ magento/magento-cloud-docker-php:7.3-cli-1.1 bash -c "./vendor/bin/ece-docker image:generate:php"

4. Add override in docker-compose

   services:
       deploy:
          build:
            context: ./vendor/magento/magento-cloud-docker/images/php/7.3-cli
   

5. Rebuild containers

   docker-compose up -d --build
   

6. Check to see changes

    docker-compose run deploy php -i | grep disable_functions
   

Results should looks like:

   Starting magento-ce_redis_1         ... done
   Starting magento-ce_elasticsearch_1 ... done
   Starting magento-ce_db_1            ... done
   disable_functions => exec => exec

7. Revert those changes, if you don't things will be broken

   docker-compose pull
   

This command will overwrite the image that was built in step #5.