```ruby

describe command('/usr/bin/docker --version') do
  its(:exit_status) { should eq 0 }
  its(:stdout) { should match(/18.03.0/) }
end
```

Update package specs to pass on Amazon Linux
user
```ruby
if os[:name] == 'amazon'
  describe command('/usr/bin/docker --version') do
    its(:exit_status) { should eq 0 }
  end
else
  describe command('/usr/bin/docker --version') do
    its(:exit_status) { should eq 0 }
    its(:stdout) { should match(/18.03.0/) }
  end
end
```
assistant