Home / server / Questions / 812568
In Process
Peter Westlake
Asked: 2016-11-02 09:49:38 +0800 CST

How can a munge method of a Puppet custom type access an entire array parameter?

  • 772

This property is an array, whose order does not matter. It's really a set, but Puppet doesn't have sets AFAICT. So I'm trying to use munge to sort the values:

newproperty(:things, :array_matching => :all) do  
  munge do |value|
    value.sort
  end
end

This fails, because the munge is applied to each of the values in the array instead of the whole thing. Is there any way to make this work?

puppet

1 Answers

  1. I had a similar problem, and resolved it like this:

    newproperty(:things, :array_matching => :all) do  
  def should(values)
    sort(super)
  end
  def should=(values)
    super
    sort!(@should)
  end
  def insync?(is)
    sort(is) == should
  end
end

    If I were writing a new module, I'd use the Resources API, which has a canonicalize hook for this very purpose.

    • 1