Hi John,
Thanks for the pointer, for workaround I used the inline_template
function to work. Thanks for the piece of code. I will try this once I
reach office, that would be on Monday.
On Fri, Nov 7, 2014 at 7:41 PM, jcbollinger <john.bollin...@stjude.org>
wrote:
On Friday, November 7, 2014 5:15:23 AM UTC-6, Ashish Jaiswal wrote:
Hello,
Just trying to write a custom function. Basically looking to pass an
argument from manifest and value should get calculated.
module Puppet::Parser::Functions
newfunction(:shmmax, :type => :rvalue) do |args|
def shmmax(args)
product = args * 1024 * 1024 * 1024
return product
end
end
end
@ foo.pp
$shmmax_variable = shmmax(2)
sysctl { "kernel.shmmax" : val => $shmmax_variable
}
In this case I'm expecting a value of 2147483648 for kernel.shmmax in
sysctl.conf file
Its just fails, Any pointer what is wrong here ?
Your custom function does not have the necessary form. Most
significantly, the block passed to newfunction() should perform the
work of the function directly, not define a Ruby method to perform
that work. For rvalue functions, the value obtained by executing the
block is the return value of the function. Secondarily, the function
arguments are presented to the function body as an array. For
example,
module Puppet::Parser::Functions
newfunction(:shmmax, :type => :rvalue) do |args|
args[0] * 1024 * 1024 * 1024
end
end
Note that if you want to perform any argument validation then that's
on you.
Note also that the function must appear in a Ruby file with the same
base name as the function itself, and that although you should put
your function in a module, you need to sync it into the master's lib
directory before the master will use it. Furthermore, be aware that
if you change the function implementation then you must both sync the
new function implementation into the master and restart the master,
in that order, before your changes are effective.
John
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