Class: BuildCloud::LaunchConfiguration

Inherits:
Object
  • Object
show all
Includes:
Component
Defined in:
lib/build-cloud/launchconfiguration.rb

Constant Summary collapse

@@objects = 
[]

Instance Method Summary collapse

Methods included from Component

included

Constructor Details

#initialize(fog_interfaces, log, options = {}) ⇒ LaunchConfiguration

Returns a new instance of LaunchConfiguration.



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# File 'lib/build-cloud/launchconfiguration.rb', line 9

def initialize ( fog_interfaces, log, options = {} )

    @as      = fog_interfaces[:as]
    @log     = log
    @options = options

    @log.debug( options.inspect )

    required_options(:id, :image_id, :key_name, :instance_type)
    require_one_of(:security_groups, :security_group_names)
    require_one_of(:user_data, :user_data_file, :user_data_template)

end

Instance Method Details

#create ⇒ Object 



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# File 'lib/build-cloud/launchconfiguration.rb', line 23

def create
    
    return if exists?

    @log.info( "Creating launch configuration #{@options[:id]}" )

    options = @options.dup

    unless options[:security_groups]

        options[:security_groups] = []

        options[:security_group_names].each do |sg|
            options[:security_groups] << BuildCloud::SecurityGroup.get_id_by_name( sg )
        end

        options.delete(:security_group_names)

    end

    if options[:user_data]

        options[:user_data] = JSON.generate( @options[:user_data] )

    elsif options[:user_data_file]

        user_data_file_path = File.join( Dir.pwd, options[:user_data_file])

        if File.exists?( user_data_file_path )
            options[:user_data] = File.read( user_data_file_path )
            options.delete(:user_data_file)
        else
            @log.error("config lists a :user_data_file that doesn't exist at #{options[:user_data_file]}")
        end

    elsif options[:user_data_template]

        variable_hash = options[:user_data_variables]

        user_data_template_path = ''
        if options[:user_data_template].include? '/'
            user_data_template_path = options[:user_data_template]
        else
            user_data_template_path = File.join( Dir.pwd, options[:user_data_template])
        end

        if File.exists?( user_data_template_path )
            template = File.read( user_data_template_path )
            ### We set 'trim_mode' to '-', which supresses end of line white space on lines ending in '-%>'
            ### see http://ruby-doc.org/stdlib-2.1.2/libdoc/erb/rdoc/ERB.html#method-c-new
            buffer = ERB.new(template,nil,'-').result(binding)
            options[:user_data] = buffer
            options.delete(:user_data_variables)
            options.delete(:user_data_template)
        else
            @log.error("config lists a :user_data_template that doesn't exist at #{options[:user_data_template]}")
        end

    end

    launch_config = @as.configurations.new( options )
    launch_config.save

    @log.debug( launch_config.inspect )

end

#delete ⇒ Object 



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# File 'lib/build-cloud/launchconfiguration.rb', line 96

def delete

    return unless exists?

    @log.info( "Deleting Launch Configuration #{@options[:id]}" )

    fog_object.destroy

end

#read ⇒ Object Also known as: fog_object 



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# File 'lib/build-cloud/launchconfiguration.rb', line 90

def read
    @as.configurations.select { |lc| lc.id == @options[:id] }.first
end