gitlab-ci-multi-runner register --url "https://git.example.com/ci" --registration-token xxxx
     --description "dockertest"
     --executor docker
     --docker-image "php:7.0-apache"
     --docker-services mariadb:latest

stages:
  - deploy

job-deploy-docker:
  only:
  - docker-ci-test
  stage: deploy
  environment: docker
  tags:
  - docker
  image: php:7.0-apache
  services:
  - mariadb
  script:
    - apt-get update && apt-get --assume-yes install mysql-client
    - mysql --user=root --password="$MYSQL_ROOT_PASSWORD" --host=mariadb -e "create database ci"