[FEATURE] Support Docker as hypervisor

[simonswine]

Hi,

i just implemented support for docker as hypervisor. The docker images should contain sshd, curl, ntpdate and lsb-release.

I tested with this example config:

HOSTS:
  test1.former03.de:
    roles:
      - master
    platform: debian-7-amd64
    hypervisor: docker
    docker_image: simonswine/beaker-debian-wheezy
CONFIG:
  log_level: verbose
  type: foss

Everything works as expected.

This is the result of a fast hack. So far it doesn't contain any specs. Feel free to test and give feedback..

cheers,
simonswine

[puppetlabs-jenkins]

Can one of the admins verify this patch?

[anodelman]

There's another PR pending for this support as well #171, you may want to look that over for duplicate code.

[simonswine]

Oh crap, i noticed #159 but not the PR in #171. @richardc 's implementation has better quality than mine. I have a litte problem with the deletion of images i will send a fix to richardc's repo.