post_install() {
    getent group gitlab > /dev/null || groupadd -g 105 gitlab 1>/dev/null
    getent passwd gitlab > /dev/null || useradd -u 105 -d "/var/lib/gitlab" -g gitlab -s "/usr/share/webapps/gitlab-shell/bin/gitlab-shell" gitlab 1>/dev/null

    echo "Configure gitlab-shell in /etc/webapps/gitlab-shell/config.yml"
    echo "Put a secret bytestring to /etc/webapps/gitlab-shell/secret"
}
