Return the targets from the flat yaml file, checks opts for location but
    defaults to /etc/salt/roster

def targets(tgt, tgt_type='glob', **kwargs):
    '''
    Return the targets from the flat yaml file, checks opts for location but
    defaults to /etc/salt/roster
    '''
    template = get_roster_file(__opts__)

    rend = salt.loader.render(__opts__, {})
    raw = compile_template(template,
                           rend,
                           __opts__['renderer'],
                           __opts__['renderer_blacklist'],
                           __opts__['renderer_whitelist'],
                           mask_value='passw*',
                           **kwargs)
    conditioned_raw = {}
    for minion in raw:
        conditioned_raw[six.text_type(minion)] = salt.config.apply_sdb(raw[minion])
    return __utils__['roster_matcher.targets'](conditioned_raw, tgt, tgt_type, 'ipv4')