Class: Awstool::Settings

Inherits:
Object
  • Object
show all
Defined in:
lib/awstool/settings.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Attribute Details

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/awstool/settings.rb', line 8

def options
  @options
end

Class Method Details

.get_flags ⇒ Object 



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# File 'lib/awstool/settings.rb', line 22

def self.get_flags
  OptionParser.new do |opts|
    opts.banner = 'Usage: awstool [options] hostname'

    opts.on('-h', '--help', 'Prints this help') do
      puts opts
      exit
    end

    opts.on('-f', '--facts FACT1,FACT2', Array, 'Seed new instance with puppet facts') do |facts|
      facts.each do |fact|
        split_fact = fact.split('=')
        @options['facts'][split_fact.first] = split_fact[1]
      end
    end

    opts.on('-t', '--tags TAG1,TAG2', Array, 'Set EC2 instance tags') do |tags|
      tags.each do |tag|
        split_tag = tag.split('=')
        @options['tags'][split_tag.first] = split_tag[1]
      end
    end

    opts.on('--debug', 'Prints some extra output helpful for debugging') do
      @options['debug'] = true
    end

    opts.on('-s', '--subnet-id-index INDEX', 'Select a subnet-id from you subnet-ids array.') do |index|
      @options['subnet-id-index'] = index.to_i
    end

    opts.on(
      '-o',
      '--options-file FILE1,FILE2',
      Array,
      'List option files that will merge and override settings in .awstool.yaml. Last entry takes precedence.' ) do |of|
      of.each do |f|
        @option_files << Psych.load_file(File.expand_path(f))
      end
    end

  end.parse!

  if ARGV.empty?
    puts "hostname string is required."
    exit 1
  else
    @options['hostnames'] = ARGV
  end
end

.get_options ⇒ Object 



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# File 'lib/awstool/settings.rb', line 10

def self.get_options
  set_default
  get_rc
  get_flags
  @option_files.each do |f|
    @options.merge!(f)
  end
  @options
end

.get_rc ⇒ Object 



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# File 'lib/awstool/settings.rb', line 73

def self.get_rc
  awsconf = "#{ENV['HOME']}/.awstool.yaml"
  if File.exist?(awsconf)
    @options.merge!(Psych.load_file(awsconf))
  end
  @options['subnet-id-index'] = rand(@options['subnet-ids'].length - 1 )
end

.set_default ⇒ Object 



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# File 'lib/awstool/settings.rb', line 81

def self.set_default
  @options['userdata'] = File.expand_path(File.dirname(__FILE__)) + '/../../userdata/default.erb'
  @options['facts'] = {}
  @options['tags']= {}
  @options['hostnames'] = []
  @options['rootvol_size'] = 8
  @options['block_devices'] = []
  @options['timezone'] = 'UTC'
end