How to run 1 php script on two containers with different PHP version using docker-compose?

Question

Docker

I more or less figured out how to launch it through a yml file, but I can’t figure out how to make it for different services. All the examples that I googled demonstrate the launch of one service.

In short, I need to create a yml that sequentially launches the program for both versions of PHP and writes the results of the work.

And do I need to make a dockerfile for this or specify different ones for different containers. I admit that I missed something in terms of what to write in the yml file for this.

Answer 1

Something like this:
docker-compose.xml

version: '3.1'

services:

   php74:
      image: php:7.4
      volumes:
         - ./:/opt/site
      container_name: php-74
      working_dir: /opt/site
      command: php -f /opt/site/somescript.php

   php73:
      image: php:7.3
      volumes:
         - ./:/opt/site
      container_name: php-73
      working_dir: /opt/site
      command: php -f /opt/site/somescript.php