Module: ChefVPCToolkit::Util

Defined in:
lib/chef-vpc-toolkit/util.rb

Constant Summary collapse

@@configs = 
nil

Class Method Summary collapse

Class Method Details

.hostname ⇒ Object 



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# File 'lib/chef-vpc-toolkit/util.rb', line 10

def self.hostname
  Socket.gethostname
end

.load_configs ⇒ Object 



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# File 'lib/chef-vpc-toolkit/util.rb', line 14

def self.load_configs

  return @@configs if not @@configs.nil?

  config_file=ENV['CHEF_VPC_TOOLKIT_CONF']
  if config_file.nil? then

    config_file=ENV['HOME']+File::SEPARATOR+".chef_vpc_toolkit.conf"
    if not File.exists?(config_file) then
      config_file="/etc/chef_vpc_toolkit.conf"
    end

  end

  if File.exists?(config_file) then
    configs=YAML.load_file(config_file)
    raise_if_nil_or_empty(configs, "cloud_servers_vpc_url")
    raise_if_nil_or_empty(configs, "cloud_servers_vpc_username")
    raise_if_nil_or_empty(configs, "cloud_servers_vpc_password")
    @@configs=configs
  else
    raise "Failed to load chef VPC toolkit config file. Please configure /etc/chef_vpc_toolkit.conf or create a .chef_vpc_toolkit.conf config file in your HOME directory."
  end

  @@configs

end

.load_public_key ⇒ Object 



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# File 'lib/chef-vpc-toolkit/util.rb', line 42

def self.load_public_key

  ssh_dir=ENV['HOME']+File::SEPARATOR+".ssh"+File::SEPARATOR
  if File.exists?(ssh_dir+"id_rsa.pub")
    pubkey=IO.read(ssh_dir+"id_rsa.pub")
  elsif File.exists?(ssh_dir+"id_dsa.pub")
    pubkey=IO.read(ssh_dir+"id_dsa.pub")
  else
    raise "Failed to load SSH key. Please create a SSH public key pair in your HOME directory."
  end

  pubkey.chomp

end

.raise_if_nil_or_empty(options, key) ⇒ Object 



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# File 'lib/chef-vpc-toolkit/util.rb', line 57

def self.raise_if_nil_or_empty(options, key)
  if not options or options[key].nil? or options[key].empty? then
    raise "Please specify a valid #{key.to_s} parameter."
  end
end