Class: Sfn::Command::Update

Inherits:
Sfn::Command
  • Object
show all
Includes:
Sfn::CommandModule::Base, Sfn::CommandModule::Stack, Sfn::CommandModule::Template
Defined in:
lib/sfn/command/update.rb

Overview

Update command

Constant Summary

Constants included from Sfn::CommandModule::Template

Sfn::CommandModule::Template::TEMPLATE_IGNORE_DIRECTORIES

Instance Method Summary collapse

Methods included from Sfn::CommandModule::Stack

included

Methods included from Sfn::CommandModule::Template

included

Methods included from Sfn::CommandModule::Base

included

Methods inherited from Sfn::Command

#config, #initialize

Constructor Details

This class inherits a constructor from Sfn::Command

Instance Method Details

#execute! ⇒ Object

Run the stack creation command



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# File 'lib/sfn/command/update.rb', line 13

def execute!
  name = name_args.first
  unless(name)
    ui.fatal "Formation name must be specified!"
    exit 1
  end

  stack_info = "#{ui.color('Name:', :bold)} #{name}"
  begin
    stack = provider.connection.stacks.get(name)
  rescue Miasma::Error::ApiError::RequestError
    stack = nil
  end

  if(config[:file])
    file = load_template_file(:stack => stack)
    stack_info << " #{ui.color('Path:', :bold)} #{config[:file]}"
    nested_stacks = file.delete('sfn_nested_stack')
  end

  if(nested_stacks)
    unpack_nesting(name, file, :update)
  else
    unless(stack)
      ui.fatal "Failed to locate requested stack: #{ui.color(name, :red, :bold)}"
      raise "Failed to locate stack: #{name}"
    end

    ui.info "#{ui.color('Cloud Formation:', :bold)} #{ui.color('update', :green)}"

    unless(file)
      if(config[:template])
        file = config[:template]
        stack_info << " #{ui.color('(template provided)', :green)}"
      else
        stack_info << " #{ui.color('(no template update)', :yellow)}"
      end
    end
    ui.info "  -> #{stack_info}"

    apply_stacks!(stack)

    if(file)
      if(config[:print_only])
        ui.puts _format_json(translate_template(file))
        return
      end
      populate_parameters!(file, :current_parameters => stack.parameters)
      stack.template = translate_template(file)
      stack.parameters = config_root_parameters
      stack.template = Sfn::Utils::StackParameterScrubber.scrub!(stack.template)
    else
      populate_parameters!(stack.template, :current_parameters => stack.parameters)
      stack.parameters = config_root_parameters
    end

    begin
      api_action!(:api_stack => stack) do
        stack.save
        if(config[:poll])
          poll_stack(stack.name)
          if(stack.reload.state == :update_complete)
            ui.info "Stack update complete: #{ui.color('SUCCESS', :green)}"
            namespace.const_get(:Describe).new({:outputs => true}, [name]).execute!
          else
            ui.fatal "Update of stack #{ui.color(name, :bold)}: #{ui.color('FAILED', :red, :bold)}"
            raise
          end
        else
          ui.warn 'Stack state polling has been disabled.'
          ui.info "Stack update initialized for #{ui.color(name, :green)}"
        end
      end
    rescue Miasma::Error::ApiError::RequestError => e
      if(e.message.downcase.include?('no updates'))
        ui.warn "No updates detected for stack (#{stack.name})"
      else
        raise
      end
    end

  end
end