This app continuously runs the command dig on a destination.

Push a diglett app with the no-start flag, set the environment variables DIGLETT_DESTINATION to the destination and DIGLETT_FREQUENCY_MS to the frequency of the dig command, and start the app:

cd ~/workspace/cf-networking-release/src/example-apps/diglett
cf push diglett --no-start
cf set-env diglett DIGLETT_DESTINATION google.com
cf set-env diglett DIGLETT_FREQUENCY_MS 100
cf start diglett