language: ruby
matrix:
  include:
  - rvm: ruby-head
  - rvm: 2.3.0
  - rvm: 2.3.0
    services:
      - docker
    script:
      - docker build -t mozilla/ssh_scan .
  - rvm: 2.2.0
  - rvm: 2.1.3
  - rvm: 2.0.0