multi-machine Vagrantfile
disable host key checking when provisioning with Vagrant
add bootstrap_user playbook to Vagrant provisioning
only allow access to any ip when not in production
add bootstrap_user playbook to Vagrant provisioning
get ip of db servers from Ansible facts
add playbook just for common role
make sure postgres is restarted before trying to use it (and remove restart handler)
add a couple of missing sudo: True