Gitlab CI runner repo fails to add to CentOS 7

# cat /etc/redhat-release
CentOS Linux release 7.1.1503 (Core)


# curl -L https://packages.gitlab.com/install/repositories/runner/gitlab-ci-multi-runner/script.deb.sh | sudo bash
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  3751    0  3751    0     0   2976      0 --:--:--  0:00:01 --:--:--  2976
Unfortunately, your operating system distribution and version are not supported by this script.
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