Add ability to configure the firewall #40
Merged
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Currently, several ports on systems are exposed to the internet. This change removes the open ports (except for ssh), allows all ports between systems in the same node set, and allows configuration of ports on the external firewall.
Additionally, there was a brief moment during the creation of the firewall where it applied to every host in the subnet. This has been fixed so that the firewall doesn't apply to any hosts until the matching test servers are created.
Fixes #34