Add necessary dependencies for paramiko

[toliver]

Fixes #275

Not sure why this has started happening now, as we've had a dependency on paramiko for a while.

DO NOT MERGE YET. Wait for Jenkins results.

[toliver]

Actually it failed with a new error on a plain Ubuntu 14.04.4 docker container. Error is the same reported here

ERROR! Unexpected Exception: The 'pycrypto>=2.6' distribution was not found and is required by ansible
the full traceback was:

Traceback (most recent call last):
  File "/tmp/ansible/bin/ansible-playbook", line 73, in <module>
    mycli = getattr(__import__("ansible.cli.%s" % sub, fromlist=[myclass]), myclass)
  File "/tmp/ansible/lib/ansible/cli/playbook.py", line 30, in <module>
    from ansible.executor.playbook_executor import PlaybookExecutor
  File "/tmp/ansible/lib/ansible/executor/playbook_executor.py", line 27, in <module>
    from ansible.executor.task_queue_manager import TaskQueueManager
  File "/tmp/ansible/lib/ansible/executor/task_queue_manager.py", line 28, in <module>
    from ansible.executor.play_iterator import PlayIterator
  File "/tmp/ansible/lib/ansible/executor/play_iterator.py", line 29, in <module>
    from ansible.playbook.block import Block
  File "/tmp/ansible/lib/ansible/playbook/__init__.py", line 25, in <module>
    from ansible.playbook.play import Play
  File "/tmp/ansible/lib/ansible/playbook/play.py", line 27, in <module>
    from ansible.playbook.base import Base
  File "/tmp/ansible/lib/ansible/playbook/base.py", line 35, in <module>
    from ansible.parsing.dataloader import DataLoader
  File "/tmp/ansible/lib/ansible/parsing/dataloader.py", line 33, in <module>
    from ansible.parsing.vault import VaultLib
  File "/tmp/ansible/lib/ansible/parsing/vault/__init__.py", line 67, in <module>
    from cryptography.hazmat.primitives.hashes import SHA256 as c_SHA256
  File "/usr/local/lib/python2.7/dist-packages/cryptography/hazmat/primitives/hashes.py", line 15, in <module>
    from cryptography.hazmat.backends.interfaces import HashBackend
  File "/usr/local/lib/python2.7/dist-packages/cryptography/hazmat/backends/__init__.py", line 7, in <module>
    import pkg_resources
  File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2927, in <module>
    @_call_aside
  File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2913, in _call_aside
    f(*args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2940, in _initialize_master_working_set
    working_set = WorkingSet._build_master()
  File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 635, in _build_master
    ws.require(__requires__)
  File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 943, in require
    needed = self.resolve(parse_requirements(requirements))
  File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 829, in resolve
    raise DistributionNotFound(req, requirers)
DistributionNotFound: The 'pycrypto>=2.6' distribution was not found and is required by ansible

[toliver]

Working correctly on Ubuntu 14.04.4 docker container.

[AndriyPt]

setup_production_machine is for desktop machine

[toliver]

True, but maybe having this would allow to test the script on a docker container?

[toliver]

The problem with premature exit is due to the way we run the script with the one liner (see #277).

For the moment I will do a quick fix to merge this branch.