Am 19.01.2009 um 13:08 schrieb <sven.tho...@bt.com>
<sven.tho...@bt.com>:
> I need my servers to decide which network they are in (i.e. dmz),
> and the only clue is the servers IP-address. I was trying to
> accomplish it like this, but it doesn’t work:
>
> case $ipaddress {
> "10.1.1.*": {
> $network = "net1"
> }
> "10.2.2.*.*": {
> $network = "net2"
> }
> "10.3.3.*": {
> $network = "net3"
> }
> }
>
> When I change the IP Address to a valid one (like 10.1.1.100) the
> case works and the network variable is set accordingly. What’s the
> correct way to do this?
Go with a custom fact, either through an evironment variable on the
clients, something like FACTER_NETWORK="net1", which will make a fact
called $network available in your manifests, or "true" fact, for which
I'd point you to the wiki. Another means would be to write a custom
function, which would look somewhat like that (top of my head and not
tested at all...):
"""
module Puppet::Parser::Functions
newfunction(:network, :type => :rvalue) do |args|
clientip = lookupvar('ipaddress') # this assigns $clientip the
ipaddress fact of the current client
## Do some clever stuff with clientip, assign $clientnet some
value
clientnet
end
end
"""
The "clever stuff" obviously needs to be some ruby logic, either with
nested if/elses or some matches, depending on what you feel most
comfortable with.
Felix Schäfer
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