On 21.11.2013 13:32, cko wrote:
> Hi,
>
> I'm currently trying to solve the following problem:
>
> I wrote a module that matches the "$ipaddress" fact for certain IP
> subnets (like 20.20.2... or 30.30.2..). Depending on the subnet, the
> variable $proxy-server changes.
>
> The problem is, that some of our physical machines have a random number
> of interfaces connected to many different subnets. In some cases the
> $ipadddress fact returns the correct subnet, lets call it "production
> server lan" and some don't.
>
> Is there any way to make puppet check every available NIC for a specific
> subnet/ regex? Something like this:
>
> if $ipaddress_eth*** =~ /^20\.20\.\..*$/ {
> $proxy-server = foo
> }
> .
>
> --
I'd recommend to write a custom fact that returns your "production
server lan" ipaddress first and then check only that fact against your
regular expression. The custom fact may look like this:
require 'ipaddr'
require 'facter/util/ip'
Facter.add(:ipaddress_production) do
setcode do
production_networks = [
IPAddr.new('20.20.2.0/24'),
IPAddr.new('30.30.2.0/24')
]
production_ip = nil
Facter::Util::IP.get_interfaces.each do |interface|
ip = Facter::Util::IP.get_interface_value(interface, 'ipaddress')
if production_networks.any? { |network| network.include? ip }
production_ip = ip
end
end
production_ip
end
end
-Stefan
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