Class: Rivet::LaunchConfig

Inherits:
Object
  • Object
show all
Defined in:
lib/rivet/launch_config.rb

Constant Summary collapse

ATTRIBUTES = 
[
  :bootstrap,
  :iam_instance_profile,
  :image_id,
  :instance_type,
  :key_name,
  :security_groups,
  :associate_public_ip_address,
  :detailed_instance_monitoring,
  :block_device_mappings,
  :kernel_id,
  :ramdisk_id,
  :spot_price
].each { |a| attr_reader a }

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(config, id_prefix = 'rivet_') ⇒ LaunchConfig

Returns a new instance of LaunchConfig.



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# File 'lib/rivet/launch_config.rb', line 23

def initialize(config, id_prefix = 'rivet_')
  @config    = config
  @id_prefix = id_prefix

  ATTRIBUTES.each do |a|
    if config.respond_to?(a)
      Rivet::Log.debug "Setting LaunchConfig @#{a} to #{config.send(a)}"
      instance_variable_set("@#{a}", config.send(a))
    end
  end
end

Instance Attribute Details

#config ⇒ Object (readonly)

Returns the value of attribute config.



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# File 'lib/rivet/launch_config.rb', line 21

def config
  @config
end

#id_prefix ⇒ Object (readonly)

Returns the value of attribute id_prefix.



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# File 'lib/rivet/launch_config.rb', line 21

def id_prefix
  @id_prefix
end

Instance Method Details

#identity ⇒ Object 



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# File 'lib/rivet/launch_config.rb', line 39

def identity
  @identity ||= generate_identity
end

#save ⇒ Object 



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# File 'lib/rivet/launch_config.rb', line 43

def save
  AwsUtils.verify_security_groups(security_groups)

  lc_collection = AWS::AutoScaling.new.launch_configurations

  if lc_collection[identity].exists?
    Rivet::Log.info "Launch configuration #{identity} already exists in AWS"
  else
    options = {}
    options[:key_pair]                      = key_name                      unless key_name.nil?
    options[:security_groups]               = security_groups               unless security_groups.nil?
    options[:user_data]                     = user_data                     unless user_data.nil?
    options[:iam_instance_profile]          = iam_instance_profile          unless iam_instance_profile.nil?
    options[:associate_public_ip_address]   = associate_public_ip_address   unless associate_public_ip_address.nil?
    options[:detailed_instance_monitoring]  = detailed_instance_monitoring  unless detailed_instance_monitoring.nil?
    options[:block_device_mappings]         = block_device_mappings         unless block_device_mappings.nil?
    options[:kernel_id]                     = kernel_id                     unless kernel_id.nil?
    options[:ramdisk_id]                    = ramdisk_id                    unless ramdisk_id.nil?
    options[:spot_price]                    = spot_price                    unless spot_price.nil?

    Rivet::Log.info "Saving launch configuration #{identity} to AWS"
    Rivet::Log.debug "Launch Config options:\n #{options.inspect}"
    lc_collection.create(identity, image_id, instance_type, options)
  end
end

#user_data ⇒ Object 



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# File 'lib/rivet/launch_config.rb', line 35

def user_data
  @user_data ||= Bootstrap.new(@config).user_data
end