propellor/doc/todo/port_info_for_properties_fo...

25 lines
795 B
Markdown

The firewall module could be improved if properties that set up a service
on a port included info (see Propellor.Info and Propellor.Types.Info)
about the port(s) used.
While currently the ports have to be explicitly listed:
& Apache.installed
& Firewall.installed
& Firewall.addRule (Rule INPUT ACCEPT (Proto TCP :- Port 80))
& Firewall.addRule (Rule INPUT ACCEPT (Proto TCP :- Port 443))
Instead the ports would be derived from the installed services.
& Apache.installed
& Firewall.installed
There could also be some combinators to adjust the exposed
ports of a property.
& localOnly Apache.installed
& exposedPorts [443,80] (Apt.serviceInstalledRunning "apache2")
Such port enformation is also going to be needed as a basis of
[[type_level_port_conflict_detection]]. --[[Joey]]