{
  "variables": {
    "project_id": "{{env `PROJECT_ID`}}",
    "registration_token": "{{env `REGISTRATION_TOKEN`}}",
    "npmrc": "{{env `NPMRC`}}"
  },
  "builders": [
    {
      "type": "googlecompute",
      "project_id": "{{user `project_id`}}",
      "source_image_family": "ubuntu-1404-lts",
      "zone": "us-west1-a",
      "disk_type": "pd-ssd",
      "image_family": "runner",
      "image_name": "runner-{{timestamp}}",
      "ssh_username": "ubuntu"
    }
  ],
  "provisioners": [
    {
      "type": "shell",
      "inline_shebang": "/bin/bash -e",
      "inline": [
        "sleep 30",
        "sudo timedatectl set-timezone Asia/Taipei",
        "echo oracle-java8-installer shared/accepted-oracle-license-v1-1 select true | sudo debconf-set-selections",
        "sudo add-apt-repository ppa:webupd8team/java",
        "sudo apt-get update",
        "sudo apt-get install --yes oracle-java8-installer",
        "sudo apt-get install --yes oracle-java8-set-default",
        "curl -L https://packages.gitlab.com/install/repositories/runner/gitlab-ci-multi-runner/script.deb.sh | sudo bash",
        "sudo apt-get install --yes gitlab-ci-multi-runner",
        "sudo mkdir -p /tmp"
      ]
    },
    {
      "type": "file",
      "source": "runner/etc-init-register.conf",
      "destination": "/tmp/etc-init-register.conf"
    },
    {
      "type": "file",
      "source": "runner/usr-local-bin-unregister",
      "destination": "/tmp/usr-local-bin-unregister"
    },
    {
      "type": "shell",
      "inline_shebang": "/bin/bash -e",
      "inline": [
        "sed -i \"s!%REGISTRATION_TOKEN%!{{user `registration_token`}}!g\" /tmp/etc-init-register.conf",
        "sudo mv /tmp/etc-init-register.conf /etc/init/register.conf",
        "sudo mv /tmp/usr-local-bin-unregister /usr/local/bin/unregister",
        "sudo apt-get install --yes build-essential cmake pkg-config libssl-dev autoconf yasm libtool libbz2-dev unzip jq apache2-utils lcov",
        "sudo curl -O https://releases.hashicorp.com/vault/0.6.4/vault_0.6.4_linux_amd64.zip",
        "sudo unzip vault_0.6.4_linux_amd64.zip",
        "sudo mv vault /usr/local/bin/",
        "sudo gcloud components update --quiet",
        "sudo su - gitlab-runner -c 'curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.32.1/install.sh | bash'",
        "sudo su - gitlab-runner -c 'echo {{user `npmrc`}} > ~/.npmrc'"
      ]
    }
  ]
}