Quickly setup a GitLab runner using Docker on Ubuntu

gitlab_runner_setup.sh

#!/bin/sh
# Should be run as root on a clean Ubuntu LTS installation

GITLAB_URL=https://gitlab.com
GITLAB_CI_TOKEN=insert-token-here
GITLAB_IMAGE=alpine
GITLAB_TAGS=ubuntu,docker
# If your hostname isn't unique, use this
#GITLAB_NAME=$RANDOM
GITLAB_NAME=`hostname`

# Install Docker
curl https://get.docker.com | sh

# Install GitLab Runner
curl -L https://packages.gitlab.com/install/repositories/runner/gitlab-runner/script.deb.sh | bash
sudo apt-get -yqq install gitlab-runner

# Setup GitLab Runner
sudo gitlab-runner register \
  --non-interactive \
  --url $GITLAB_URL \
  --registration-token $GITLAB_CI_TOKEN \
  --executor "docker" \
  --docker-image $GITLAB_IMAGE \
  --description $GITLAB_NAME \
  --tag-list $GITLAB_TAGS \
  --run-untagged \
  --locked="false" \
  --docker-privileged

# Start it!
sudo gitlab-runner start