feat(security): add custom firewall in platforms without security

Run the script in each node and after the reboot the node will have a custom set of iptables rules that change the iptables policy and only allow connections to ports 22,80,443 and 2222 from the outside and unrestricted access between the nodes of the cluster.

This script must run every time that a new node is added to the cluster

ref #2488
@aledbf got it. I agree with @gabrtv that avoiding a reboot (well, N reboots) would be fantastic. Want to try `--noflush` and I can test it out?