Dokku v0.2.3 on Ubuntu 14.04 (w/ Docker 1.2.0) digital ocean vps auto iptables config for cloudflare
commands:
$ wget https://raw.githubusercontent.com/trototype/iptables-helper-for-cloudflare-ip-addresses/master/iptablesCloudFlareHelper.sh -v -O iptablesCloudFlareHelper.sh
$ sudo chmod 744 iptablesCloudFlareHelper.sh
$ ./iptablesCloudFlareHelper.sh