Docker-compose in first build-step and commandline in next step

Hello
I have not found the information I am looking for.

I want to start, if possible, in the first BuildStep a docker-composer with service php and service mysql etc and in the next BuildStep then start tests and scripts in the service php.

Currently I start via a docker run but I would like to use the DB in the docker-compose to encapsulate the test in itself as much as possible.

Is there somewhere a detailed description  .

Thanks for all answers