---
kind: pipeline
name: test

platform:
  os: linux
  arch: amd64

steps:
- name: test
  image: ruby:2.2
  commands:
  - bundle install
  - bundle exec rake spec

services:
- name: db-postgres
  image: my-postgres:9.4
  entrypoint:
  - /usr/local/bin/db-postgres
  command:
  - start

...