Nanobox external logdrains

drains.sh

# papertrail
# export LOGGER_TOKEN=(from /etc/logvac/config.json)
# export APP=app-name
# export ENDPOINT=logs7.papertrailapp.com:16810
curl -k -v -X POST -H "X-Auth-Token: $LOGGER_TOKEN" https://127.0.0.1:6361/drains -d '{"type": "papertrail", "id": "${APP}", "endpoint": "${ENDPOINT}"}'

# datadog
# export LOGGER_TOKEN=(from /etc/logvac/config.json)
# export APP=app-name
# export KEY=(from dashboard)
curl -k -v -X POST -H "X-Auth-Token: $LOGGER_TOKEN" https://127.0.0.1:6361/drains -d '{"type": "datadog", "id": "${APP}", "key": "${KEY}"}'

how you can execute this script from you boxfile configuration ?