acceptance tests on docker

[deric]

Travis should support running acceptance tests on Docker, which might be faster (and easily reproducible on developer's machine).

[yankcrime]

Thanks @deric - this is something I've been meaning to sort out and so saves me a job 👍

[deric]

There's still problem with systemd on Debian 8 and CentOS 7:

  Setting up telegraf (0.12.1-1) ...                                                                                                                        
  Created symlink from /etc/systemd/system/telegraf.service to /lib/systemd/system/telegraf.service.                                                        
  Created symlink from /etc/systemd/system/multi-user.target.wants/telegraf.service to /lib/systemd/system/telegraf.service.                                
  Failed to get D-Bus connection: Unknown error -1                                                                                                          
  Failed to get D-Bus connection: Unknown error -1      

probably it would be good idea to start with Docker image and preinstalled version of Puppet.