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MCollective::Discovery::Flatfile

Public Class Methods

discover(filter, timeout, limit=0, client=nil) click to toggle source
# File plugins/mcollective/discovery/flatfile.rb, line 7
def self.discover(filter, timeout, limit=0, client=nil)
  unless client.options[:discovery_options].empty?
    file = client.options[:discovery_options].first
  else
    raise "The flatfile discovery method needs a path to a text file"
  end

  raise "Cannot read the file %s specified as discovery source" % file unless File.readable?(file)

  discovered = []

  hosts = File.readlines(file).map{|l| l.chomp}

  # this plugin only supports identity filters, do regex matches etc against
  # the list found in the flatfile
  unless filter["identity"].empty?
    filter["identity"].each do |identity|
      identity = Regexp.new(identity.gsub("\/", "")) if identity.match("^/")

      if identity.is_a?(Regexp)
        discovered = hosts.grep(identity)
      elsif hosts.include?(identity)
        discovered << identity
      end
    end
  else
    discovered = hosts
  end

  discovered
end

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