Class: VagrantPlugins::OpenStack::Action::CreateOrchestrationStack

Inherits:
Object
  • Object
show all
Defined in:
lib/vagrant-openstack-plugin/action/create_orchestration_stack.rb

Instance Method Summary collapse

Constructor Details

#initialize(app, env) ⇒ CreateOrchestrationStack

Returns a new instance of CreateOrchestrationStack.



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# File 'lib/vagrant-openstack-plugin/action/create_orchestration_stack.rb', line 9

def initialize(app, env)
  @app    = app
  @logger = Log4r::Logger.new(
    "vagrant_openstack::action::create_orchestration_stack")
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/vagrant-openstack-plugin/action/create_orchestration_stack.rb', line 15

def call(env)
  # Get the config.
  config = env[:machine].provider_config

  # Are we going to handle orchestration stacks?
  if not config.orchestration_stack_name
    return @app.call(env)
  end

  # Create new fog orchestration service.
  env[:openstack_orchestration] = Fog::Orchestration.new(
    env[:fog_openstack_params])

  # Check if stack is already created.
  env[:openstack_orchestration].list_stacks.body['stacks'].each do |stack|
    if config.orchestration_stack_name == stack['stack_name']
      return @app.call(env)
    end
  end

  # To avoid confusion, only one source for orchestration template
  # should be set.
  if [config.orchestration_cfn_template,
      config.orchestration_cfn_template_file,
      config.orchestration_cfn_template_url].count(nil) != 2
    raise Errors::OrchestrationTemplateError,
      :err => 'One source for orchestration template should be specified.'
  end

  # Prepare parameters for new orchestration stack.
  # TODO: configurable parameters
  stack_params = {
    :disable_rollback   => false,
    :timeout_in_minutes => 5,
  }

  # Set template source.
  if config.orchestration_cfn_template
    stack_params[:template] = config.orchestration_cfn_template
  elsif config.orchestration_cfn_template_file
    if not File.exist?(config.orchestration_cfn_template_file)
      raise Errors::OrchestrationNoTemplateFileError,
        :fname => config.orchestration_cfn_template_file
    end

    # Load template file content. Newlines can cause parse error of
    # input JSON string.
    stack_params[:template] = ''
    File.open(config.orchestration_cfn_template_file) { |file|
      file.each_line do |line|
        stack_params[:template] << line
      end
    }
  else
    stack_params[:template_url] = config.orchestration_cfn_template_url
  end

  # Set template parameters.
  stack_params[:parameters] = config.orchestration_cfn_template_parameters

  # Create new stack.
  env[:ui].info(I18n.t("vagrant_openstack.creating_orchestration_stack"))
  stack = env[:openstack_orchestration].create_stack(
    config.orchestration_stack_name, stack_params)

  # Write UUID of newly created stack into file for later use (stack removal).
  created_stacks_fname = env[:machine].data_dir + 'orchestration_stacks'
  message = 'Saving information about created orchestration stack '
  message << "#{config.orchestration_stack_name}, "
  message << "UUID=#{stack.body['stack']['id']} "
  message << "to file #{created_stacks_fname}."
  @logger.info(message)

  File.open(created_stacks_fname, 'a') do |file|
    file.puts stack.body['stack']['id']
  end

  @app.call(env)
end