Simple gitlab-ci configuration symfony

.gitlab-ci.sh

#!/bin/bash

# Install dependencies only for Docker.
[[ ! -e /.dockerinit ]] && exit 0
set -xe

# Update packages and install composer and PHP dependencies.
apt-get update -yqq
apt-get install git libcurl4-gnutls-dev libicu-dev libmcrypt-dev libvpx-dev libjpeg-dev libpng-dev libxpm-dev zlib1g-dev libfreetype6-dev libxml2-dev libexpat1-dev libbz2-dev libgmp3-dev libldap2-dev unixodbc-dev libpq-dev libsqlite3-dev libaspell-dev libsnmp-dev libpcre3-dev libtidy-dev phpunit -yqq

# Compile PHP, include these extensions.
docker-php-ext-install mbstring mcrypt pdo pdo_mysql curl json intl gd xml zip bz2 opcache

.gitlab-ci.yml

# Select image from https://hub.docker.com/r/_/php/
image: php:7.0

# Services
services:
  - mysql:latest

# Variables and root user used
variables:
  MYSQL_ROOT_PASSWORD: secret
  MYSQL_USER: gitlab-ci
  MYSQL_PASSWORD: secret
  MYSQL_DATABASE: your_db_name

# Before Script
before_script:
  - bash .gitlab-ci.sh > /dev/null
  - cd /builds/zeedenis/ZeeApi
  - php -v
  - ping -c 3 mysql
  - cp app/config/parameters.gitlab-ci.yml app/config/parameters.yml
  - curl -sS https://getcomposer.org/installer | php
  - php composer.phar install
  - php app/console doctrine:database:create --env=test --if-not-exists
  - php app/console doctrine:schema:create --env=test

test:app:
  script:
  - phpunit -c app --debug

parameters.gitlab-ci.yml

parameters:
    database_host: mysql
    database_name: your_db_name
    database_name_test: your_db_name
    database_user: root
    database_password: secret

I got problem with these lines:

• - cd /builds/zeedenis/ZeeApi -> path not found, I quite understand because my project doesn't contain those path.
• - ping -c 3 mysql -> command not found, very weird, cause ping is the basic command of Linux base environment.
• - cp app/config/parameters.gitlab-ci.yml app/config/parameters.yml -> cp: cannot create regular file 'app/config/parameters.yml': No such file or directory
• - phpunit -c app --debug -> phpunit command not found: wonder is .gitlab-ci.sh do its job exactly?
• - php app/console doctrine:database:create --env=test --if-not-exists -> connection refuse.

ping: command not found