foo.yml

---
- hosts: all
  vars_files:
    - "./vagrant_vars.yml"
  tasks:
    - name: debug
      debug: msg="wtf"

gistfile1.txt

mybox:vagrant gbuehler$ ansible-playbook -i vagrant_ansible_inventory_foo ./devops/deploy/foo.yml -U vagrant -u vagrant --private-key=~/.vagrant.d/insecure_private_key -vvvv -c ssh
 
PLAY [all] ********************************************************************
 
GATHERING FACTS ***************************************************************
<127.0.0.1> ESTABLISH CONNECTION FOR USER: devops
<127.0.0.1> EXEC ['ssh', '-tt', '-vvv', '-o', 'ControlMaster=auto', '-o', 'ControlPersist=60s', '-o', 'ControlPath=/Users/gbuehler/.ansible/cp/ansible-ssh-%h-%p-%r', '-o', 'Port=2222', '-o', 'IdentityFile=/Users/gbuehler/.vagrant.d/insecure_private_key', '-o', 'KbdInteractiveAuthentication=no', '-o', 'PreferredAuthentications=gssapi-with-mic,gssapi-keyex,hostbased,publickey', '-o', 'PasswordAuthentication=no', '-o', 'User=devops', '-o', 'ConnectTimeout=10', '127.0.0.1', "/bin/sh -c 'mkdir -p /tmp/ansible-1380908227.6-27305635794255 && chmod a+rx /tmp/ansible-1380908227.6-27305635794255 && echo /tmp/ansible-1380908227.6-27305635794255'"]