Class: Cloudboot::Bootstrap

Inherits:
Object
  • Object
show all
Defined in:
lib/cloudboot/bootstrap.rb

Instance Method Summary collapse

Instance Method Details

#bootstrap ⇒ Object 



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# File 'lib/cloudboot/bootstrap.rb', line 81

def bootstrap
  
  mutex "/tmp/cloudboot.lock" do

    domain    = nil
    hostname  = nil
    error     = nil

    begin
      user_data = read('http://169.254.169.254/1.0/user-data')

      if user_data
        bootstrap = YAML.load(user_data)

        domain = bootstrap['domain']

        public_ipv4 = read("http://169.254.169.254/latest/meta-data/public-ipv4")
        local_ipv4  = read("http://169.254.169.254/latest/meta-data/local-ipv4")

        puts bootstrap.inspect

        url = "http://#{bootstrap['host']}:#{bootstrap['port']}/register"

        params = "public_ip=#{public_ipv4}&private_ip=#{local_ipv4}&domain=#{domain}&host="
        params << hostname()
    
        hostname = read(url, {:params => params})
      end
  
    rescue Exception => e
      error = e
    ensure
      options = {:hostname => hostname, :domain => domain, :error => error}

      if hostname && domain 
        Callback.success(options)
      else
        Callback.failure(options)
      end
      
    end
  end

end

#failure(options) ⇒ Object 



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# File 'lib/cloudboot/bootstrap.rb', line 78

def failure(options)
end

#fqdn ⇒ Object 



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# File 'lib/cloudboot/bootstrap.rb', line 56

def fqdn
  `hostname -f`.strip
end

#hostname ⇒ Object 



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# File 'lib/cloudboot/bootstrap.rb', line 52

def hostname
  `hostname`.strip
end

#mutex(lock_file, &block) ⇒ Object 



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# File 'lib/cloudboot/bootstrap.rb', line 60

def mutex(lock_file, &block)
  
  unless File.exist?(lock_file)
    begin
      FileUtils.touch(lock_file)
      block.call
    ensure
      FileUtils.rm(lock_file)
    end
  else
    puts "skipping - lock_file #{lock_file} exist"
  end
  
end

#read(url, options = {}) ⇒ Object 



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# File 'lib/cloudboot/bootstrap.rb', line 16

def read(url, options={})
  
  options = {
    :params => ""
  }.merge(options)
  
  url = URI.parse(url)

  http = Net::HTTP.new(url.host, url.port)
  http.open_timeout = 10
  http.read_timeout = 10

  params = options[:params]

  puts "options: #{options.inspect}"

  res = if params.empty?
    puts "req: GET #{url}"
    http.get(url.path)
  else
    puts "req: POST #{url} - #{params}"
    http.post(url.path, params)
  end

  s = if res.is_a?(Net::HTTPOK) 
    r = res.body.strip
    r.empty? ? nil : r
  else
    nil
  end

  puts "res: #{s.nil? ? 'nil' : s}"

  s
end

#success(options) ⇒ Object 



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# File 'lib/cloudboot/bootstrap.rb', line 75

def success(options)
end