How to use Docker to pull a project on host machine? - docker

Question

I'm learning about the gitlab-ci.yml and I started reading about environments which makes me wonder, is it possible to access a folder on the host machine and perform a git pull command in the deploy stage?
image: php:5.6
# The folders we should cache
cache:
paths:
- vendor/
before_script:
# Install git, the php image doesn't have installed
- apt-get update -yqq
- apt-get install git mysql-client -yqq
# Install mysql driver
- docker-php-ext-install pdo_mysql
# Install composer
- curl -sS https://getcomposer.org/installer | php
# Install all project dependencies
- php composer.phar install
services:
- mysql
variables:
MYSQL_DATABASE: test
MYSQL_ROOT_PASSWORD: root
test:
stage: test
script:
- echo "CREATE DATABASE IF NOT EXISTS test;" | mysql --user=root --password="${MYSQL_ROOT_PASSWORD}" --host=mysql
- mysql --user=root --password="${MYSQL_ROOT_PASSWORD}" --host=mysql test < tests/assets/test.sql
- php composer.phar tests
deploy_staging:
stage: deploy
script:
- echo "Deploying to staging server..."
environment:
name: staging
url: http://staging.example.com
only:
- master
Basically all my script does is import the database file and execute the tests of the PDO service. Just a random test to learn about the CI.
Now instead of:
- echo "Deploying to staging server..."
I was wondering how I could achieve something like:
- cd /path/on/host/machine/to/repository
- git pull
If not, is there an alternative to accomplish what I want to do?