Deploy via FTP from GitLab

.gitlab-ci.yml

variables:
    STAGE_FTP_HOST: "{hostname or ip}"


deploy_staging:
    stage: deploy
    environment: Staging
    script:
        - apt-get update -qq && apt-get install -y -qq git-ftp
        # Set user and pass in Gitlab > Settings > CI/CD > Variables
        - git-ftp push -u $STAGE_FTP_USER $STAGE_FTP_HOST -p $STAGE_FTP_PASS --syncroot .
        # See .git-ftp-ignore
    only:
        - master