Gitlab ci laravel

before_script:
  - echo 'Before script'
  - 'which ssh-agent || ( apt-get update -y && apt-get install openssh-client -y )'
  - eval $(ssh-agent -s)
  - mkdir -p ~/.ssh
  - echo "$SSH_PRIVATE_KEY" | tr -d '\r' | ssh-add -
  - chmod 700 ~/.ssh
  - ssh-keyscan -H 'domain.com' >> ~/.ssh/known_hosts
  - chmod 644 ~/.ssh/known_hosts
building:
  stage: build
  script:
    - ssh root@domain.com "cd /var/www/main/ &&
        git checkout -f master &&
        git pull origin master &&
        cd /var/www/main/back/ &&
        composer install -no-dev &&
        php artisan key:generate &&
        php artisan migrate &&
        php artisan cache:clear &&
        php artisan config:clear &&
        php artisan storage:link -q &&
        sudo chown -R fixable:www-data /var/www/main/back &&
        sudo chmod 775 -R /var/www/main/back &&
        sudo chgrp -R www-data /var/www/main/back/storage /var/www/main/back/bootstrap/cache &&
        sudo chmod -R ug+rwx /var/www/main/back/storage /var/www/main/back/bootstrap/cache
      "
  only:
    refs:
      - pipeline
deploying:
  stage: deploy
  script:
    - echo "Deployed"
  only:
    refs:
      - pipeline