@metadata_processor
def crontab(metadata):
    return {
        'cron': {
            'letsencrypt_renew': '20 4 * * *    root    /usr/bin/dehydrated --cron --accept-terms --ocsp --challenge http-01 > /dev/null',
            'letsencrypt_cleanup': '42 23 * * 0    root    /usr/bin/dehydrated --cleanup > /dev/null',
        },
    }, DEFAULTS, DONE