EC2 facter

gistfile1.rb

require 'open-uri'
require 'timeout'
require 'ping'

def can_connect?
  begin
    Timeout::timeout(2) do
      open("http://169.254.169.254")
      return true
    end
  rescue Timeout::Error, Errno::EHOSTUNREACH
    return false
  end
end

end

def add_ec2_groups()
  return unless can_connect?
  groups = open("http://169.254.169.254/2008-02-01/meta-data/security-groups").read
  groups = groups.split("\n")
  groups = groups.select {|g| g != 'ssh-access' }
  if groups.size > 0 
    sec_group = groups.first
    Facter.add("ec2_security_group") {
      setcode { sec_group }
    }
    puts "SECURITY GROUP #{sec_group}"
  end
end

begin
   Timeout::timeout(180) do
      add_ec2_groups()
    end
rescue Timeout::Error, Errno::EHOSTUNREACH
end