Log into vCenter API search for a vm by name, and return it's uuid
    :param host:
    :param user:
    :param password:
    :param vm_name:
    :return:

def get_vcenter_vm_uuid_by_name(host, user, password, vm_name):
    """
    Log into vCenter API search for a vm by name, and return it's uuid
    :param host:
    :param user:
    :param password:
    :param vm_name:
    :return:
    """
    vc = VcenterInterface(host, user, password)
    vmi = VmInterface(vc, vm_name)
    return vmi.get_instance_uuid()