Class: SmartMachine::Buildpackers::Rails

Inherits:
SmartMachine::Base show all
Defined in:
lib/smart_machine/buildpackers/rails.rb

Instance Method Summary collapse

Methods inherited from SmartMachine::Base

#machine_has_engine_installed?, #platform_on_machine?, #user_bash

Methods included from Logger

configure_logger_for, included, #logger, logger_for

Constructor Details

#initialize(appname:, appversion:) ⇒ Rails

Returns a new instance of Rails.



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# File 'lib/smart_machine/buildpackers/rails.rb', line 6

def initialize(appname:, appversion:)
  @home_dir = File.expand_path('~')
  @appname = appname
  @appversion = appversion
  @container_path = "#{@home_dir}/machine/apps/containers/#{@appname}"
end

Instance Method Details

#package ⇒ Object 



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# File 'lib/smart_machine/buildpackers/rails.rb', line 13

def package
  return unless File.exist? "#{@container_path}/releases/#{@appversion}/bin/rails"

  logger.formatter = proc do |severity, datetime, progname, message|
    severity_text = { "DEBUG" => "\u{1f527} #{severity}:", "INFO" => " \u{276f}", "WARN" => "\u{2757} #{severity}:",
                     "ERROR" => "\u{274c} #{severity}:", "FATAL" => "\u{2b55} #{severity}:", "UNKNOWN" => "\u{2753} #{severity}:"
                    }
    "\t\t\t\t#{severity_text[severity]} #{message}\n"
  end

  logger.info "Ruby on Rails application detected."
  logger.info "Packaging Application ..."

  # Setup rails env
  env_path = "#{@container_path}/env"
  system("grep -q '^## Rails' #{env_path} || echo '## Rails' >> #{env_path}")
  system("grep -q '^MALLOC_ARENA_MAX=' #{env_path} || echo '# MALLOC_ARENA_MAX=2' >> #{env_path}")
  system("grep -q '^RAILS_ENV=' #{env_path} || echo 'RAILS_ENV=production' >> #{env_path}")
  system("grep -q '^RACK_ENV=' #{env_path} || echo 'RACK_ENV=production' >> #{env_path}")
  system("grep -q '^RAILS_LOG_TO_STDOUT=' #{env_path} || echo 'RAILS_LOG_TO_STDOUT=enabled' >> #{env_path}")
  system("grep -q '^RAILS_SERVE_STATIC_FILES=' #{env_path} || echo 'RAILS_SERVE_STATIC_FILES=enabled' >> #{env_path}")
  system("grep -q '^LANG=' #{env_path} || echo 'LANG=en_US.UTF-8' >> #{env_path}")
  system("grep -q '^RAILS_MASTER_KEY=' #{env_path} || echo 'RAILS_MASTER_KEY=yourmasterkey' >> #{env_path}")
  logger.warn "Please set your RAILS_MASTER_KEY env var for this rails app." if system("grep -q '^RAILS_MASTER_KEY=yourmasterkey' #{env_path}")

  # Setup app folders needed for volumes. If this is not created then docker will create it while running the container,
  # but the folder will have root user assigned instead of the current user.
  FileUtils.mkdir_p("#{@container_path}/app/vendor/bundle")
  FileUtils.mkdir_p("#{@container_path}/app/public/assets")
  FileUtils.mkdir_p("#{@container_path}/app/public/packs")
  FileUtils.mkdir_p("#{@container_path}/app/node_modules")
  FileUtils.mkdir_p("#{@container_path}/app/storage")
  FileUtils.mkdir_p("#{@container_path}/asdf")
  FileUtils.mkdir_p("#{@container_path}/releases/#{@appversion}/vendor/bundle")
  FileUtils.mkdir_p("#{@container_path}/releases/#{@appversion}/public/assets")
  FileUtils.mkdir_p("#{@container_path}/releases/#{@appversion}/public/packs")
  FileUtils.mkdir_p("#{@container_path}/releases/#{@appversion}/node_modules")
  FileUtils.mkdir_p("#{@container_path}/releases/#{@appversion}/storage")

  # Creating a valid docker app image.
  container = SmartMachine::Apps::Container.new(name: "#{@appname}-#{@appversion}-packed", appname: @appname, appversion: @appversion)
  if container.commit_app_image!
    logger.formatter = nil
    return true
  end

  logger.formatter = nil
  return false
end

#packer ⇒ Object 



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# File 'lib/smart_machine/buildpackers/rails.rb', line 63

def packer
  set_logger_formatter_arrow

  # TODO: The exec of final process should be done only in the Manager#containerize_process! and should be removed from here.
  # This method should only pack a fully functioning container and do nothing else.
  if File.exist? "tmp/smartmachine/packed"
    begin
      pid = File.read('tmp/smartmachine/packed').to_i
      Process.kill('QUIT', pid)
    rescue Errno::ESRCH # No such process
    end
    exec(user_bash("bundle exec puma --config config/puma.rb"))
  else
    if initial_setup? && bundle_install? && precompile_assets? && db_migrate? && test_web_server?
      logger.formatter = nil

      exit 0
    else
      logger.error "Could not continue ... Launch Failed."
      logger.formatter = nil

      exit 1
    end
  end
end