Generate a Ansible hosts file from running Vagrant VMs

genHostfile.sh

#!/bin/bash
{
  for VM in $(vagrant status | grep -iE 'running.*virtualbox' | grep "$1" | awk '{print $1}'); do
    mapfile -t VAGRANT_SSH < <(vagrant ssh-config "$VM" | awk '{print $NF}')
    echo "[${VAGRANT_SSH[0]}]"
    echo "${VAGRANT_SSH[1]} ansible_connection=ssh ansible_port=${VAGRANT_SSH[3]} ansible_user=${VAGRANT_SSH[2]} ansible_ssh_private_key_file=${VAGRANT_SSH[7]}"
  done
} > "hosts"