How to set up GitLab Runner on DigitalOcean

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## Create a droplet ##

Fortunately, DigitalOcean has a one-click image with Docker pre-installed on Ubuntu 14.04 use this link to create new droplet.

https://www.digitalocean.com/features/one-click-apps/docker/

# Install the GitLab Runner #

First, login to the new droplet via SSH and verify that Docker is installed with:
`docker info`

GitLab provides a repository where you can easily install and update GitLab Runner. The supported distros as Debian, Ubuntu and CentOS. Let's install the repository with this one-line:

`curl -L https://packages.gitlab.com/install/repositories/runner/gitlab-runner/script.deb.sh | sudo bash`

Now let's install GitLab Runner:
`sudo apt-get install gitlab-runner`

And verify it's installed:
`gitlab-runner --version`

# Register the GitLab Runner #
Now, let's get back to the droplet and start registering a Runner:
`sudo gitlab-runner register`

the gitlab-ci coordinator URL: Enter https://gitlab.com/ci
enter the executor: Our executor will be docker

Once answered all questions, you can verify that the Runner is registered with:
`sudo gitlab-runner list`


More reading.....
https://about.gitlab.com/2016/04/19/how-to-set-up-gitlab-runner-on-digitalocean/