Use Ansible to provision VM.

[jfilip]

Replace shell-based provisioning with a simple Ansible playbook and single template file.

The output from an initial provisioning looks like this:

==> default: Running provisioner: ansible_local...
    default: Installing Ansible...
    default: Installing pip... (for Ansible installation)
    default: Running ansible-playbook...

PLAY [all] *********************************************************************

TASK [setup] *******************************************************************
ok: [default]

TASK [Generate default locale] *************************************************
ok: [default]

TASK [Setup system-wide default locale] ****************************************
changed: [default]

TASK [Update APT cache] ********************************************************
ok: [default]

TASK [Install required software] ***********************************************
changed: [default] => (item=[u'ntp', u'sqlite3', u'ruby', u'ruby-dev', u'bundler', u'nodejs', u'postgresql-9.5', u'postgresql-client-9.5', u'postgresql-server-dev-9.5', u'python-psycopg2'])

TASK [Create bundler install directory] ****************************************
changed: [default]

TASK [Ensure Vagrant Postgres user exists] *************************************
changed: [default]

TASK [Change dir to /vagrant on login] *****************************************
changed: [default]

PLAY RECAP *********************************************************************
default                    : ok=8    changed=5    unreachable=0    failed=0