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-rw-r--r--lib/puppet/parser/functions/fqdn_rand.rb9
1 files changed, 6 insertions, 3 deletions
diff --git a/lib/puppet/parser/functions/fqdn_rand.rb b/lib/puppet/parser/functions/fqdn_rand.rb
index 3e7018ac4..52946f2c1 100644
--- a/lib/puppet/parser/functions/fqdn_rand.rb
+++ b/lib/puppet/parser/functions/fqdn_rand.rb
@@ -1,7 +1,10 @@
Puppet::Parser::Functions::newfunction(:fqdn_rand, :type => :rvalue, :doc =>
- "Generates random numbers based on the node's fqdn. The first argument
- sets the range. Additional (optional) arguments may be used to further
- distinguish the seed.") do |args|
+ "Generates random numbers based on the node's fqdn. Generated random values
+ will be a range from 0 up to and excluding n, where n is the first parameter.
+ The second argument specifies a number to add to the seed and is optional, for example:
+
+ $random_number = fqdn_rand(30)
+ $random_number_seed = fqdn_rand(30,30)") do |args|
require 'md5'
max = args.shift
srand MD5.new([lookupvar('fqdn'),args].join(':')).to_s.hex