puppetlabs-stdlib/lib/puppet/parser/functions/has_interface_with.rb
Mathias Klette e96a818782 catch and rescue from looking up non-existent facts when looking for 'kind'
facter (2.x) only provides facts without interface suffix for
 * ipaddress
 * netmask

'macaddress' and 'network' facts will always have the related interface
name appended. in turns lookupvar throws errors when strict_variables is
enabled.
2015-06-24 15:02:02 +02:00

71 lines
1.9 KiB
Ruby

#
# has_interface_with
#
module Puppet::Parser::Functions
newfunction(:has_interface_with, :type => :rvalue, :doc => <<-EOS
Returns boolean based on kind and value:
* macaddress
* netmask
* ipaddress
* network
has_interface_with("macaddress", "x:x:x:x:x:x")
has_interface_with("ipaddress", "127.0.0.1") => true
etc.
If no "kind" is given, then the presence of the interface is checked:
has_interface_with("lo") => true
EOS
) do |args|
raise(Puppet::ParseError, "has_interface_with(): Wrong number of arguments " +
"given (#{args.size} for 1 or 2)") if args.size < 1 or args.size > 2
interfaces = lookupvar('interfaces')
# If we do not have any interfaces, then there are no requested attributes
return false if (interfaces == :undefined || interfaces.nil?)
interfaces = interfaces.split(',')
if args.size == 1
return interfaces.member?(args[0])
end
kind, value = args
# Bug with 3.7.1 - 3.7.3 when using future parser throws :undefined_variable
# https://tickets.puppetlabs.com/browse/PUP-3597
factval = nil
begin
catch :undefined_variable do
factval = lookupvar(kind)
end
rescue Puppet::ParseError # Eat the exception if strict_variables = true is set
end
if factval == value
return true
end
result = false
interfaces.each do |iface|
iface.downcase!
factval = nil
begin
# Bug with 3.7.1 - 3.7.3 when using future parser throws :undefined_variable
# https://tickets.puppetlabs.com/browse/PUP-3597
catch :undefined_variable do
factval = lookupvar("#{kind}_#{iface}")
end
rescue Puppet::ParseError # Eat the exception if strict_variables = true is set
end
if value == factval
result = true
break
end
end
result
end
end