unicornの起動時エラーがでるのを治したい

Question

ruby on rails でアプリを作成し、
AWS、EC２を使ってデプロイしているところです。

macで作成してます。

(デプロイ編②)世界一丁寧なAWS解説。EC2を利用して、RailsアプリをAWSにあげるまで

を参考に進めています。
unicornを起動したく、

[naoki]$ unicorn_rails -c /var/www/rails/mumu(アプリの名前)/config/unicorn.conf.rb -D -E production #unicornを起動させる

をすると

master failed to start, check stderr log for details

が出てしまい、ログを確認すると

 [2019-12-21T10:59:01.866417 #23021]  INFO -- : Refreshing Gem list
/var/www/rails/BookBook/config/environments/production.rb:5:in `<main>': undefined local variable or method `config' for main:Object (NameError)
        from /home/noteman/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require'
        from /home/noteman/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
        from /home/noteman/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
        from /home/noteman/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
        from /home/noteman/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
        from /home/noteman/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `block in require'
        from /home/noteman/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:257:in `load_dependency'
        from /home/noteman/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `require'
        from /home/noteman/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/engine.rb:602:in `block (2 levels) in <class:Engine>'
        from /home/noteman/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/engine.rb:601:in `each'
        from /home/noteman/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/engine.rb:601:in `block in <class:Engine>'
        from /home/noteman/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/initializable.rb:32:in `instance_exec'
        from /home/noteman/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/initializable.rb:32:in `run'
        from /home/noteman/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/initializable.rb:61:in `block in run_initializers'
        from /home/noteman/.rbenv/versions/2.6.5/lib/ruby/2.6.0/tsort.rb:228:in `block in tsort_each'
        from /home/noteman/.rbenv/versions/2.6.5/lib/ruby/2.6.0/tsort.rb:350:in `block (2 levels) in each_strongly_connected_component'
        from /home/noteman/.rbenv/versions/2.6.5/lib/ruby/2.6.0/tsort.rb:422:in `block (2 levels) in each_strongly_connected_component_from'
        from /home/noteman/.rbenv/versions/2.6.5/lib/ruby/2.6.0/tsort.rb:431:in `each_strongly_connected_component_from'
        from /home/noteman/.rbenv/versions/2.6.5/lib/ruby/2.6.0/tsort.rb:421:in `block in each_strongly_connected_component_from'
        from /home/noteman/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/initializable.rb:50:in `each'
        from /home/noteman/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/railties-5.2.3/lib/rails/initializable.rb:50:in `tsort_each_child'
        from /home/noteman/.rbenv/versions/2.6.5/lib/ruby/2.6.0/tsort.rb:415:in `call'
        from /home/noteman/.rbenv/versions/2.6.5/lib/ruby/2.6.0/tsort.rb:415:in `each_strongly_connected_component_from'

とでてきます
configの何かなのですが、
検索をかけたりしたのですが、
解決できません。
どなたか教えていただけますでしょうか。

アプリ作成、デプロイはじめてなので、コメントの理解が遅くなるかもしれません、
よろしくお願いします

回答者様に対して別の人がコメントや、質問に対する回答でないコメントなどは
ご遠慮願います。

下記、追記しました。

Rails.application.configure do
  # Settings specified here will take precedence over those in config/application.rb.

  # Code is not reloaded between requests.
  config.cache_classes = true

  # Eager load code on boot. This eager loads most of Rails and
  # your application in memory, allowing both threaded web servers
  # and those relying on copy on write to perform better.
  # Rake tasks automatically ignore this option for performance.
  config.eager_load = true

  # Full error reports are disabled and caching is turned on.
  config.consider_all_requests_local       = false
  config.action_controller.perform_caching = true

  # Ensures that a master key has been made available in either ENV["RAILS_MASTER_KEY"]
  # or in config/master.key. This key is used to decrypt credentials (and other encrypted files).
  # config.require_master_key = true

  # Disable serving static files from the `/public` folder by default since
  # Apache or NGINX already handles this.
  config.public_file_server.enabled = ENV['RAILS_SERVE_STATIC_FILES'].present?

  # Compress JavaScripts and CSS.
  config.assets.js_compressor = :uglifier
  # config.assets.css_compressor = :sass

  # Do not fallback to assets pipeline if a precompiled asset is missed.
  config.assets.compile = false

  # `config.assets.precompile` and `config.assets.version` have moved to config/initializers/assets.rb

  # Enable serving of images, stylesheets, and JavaScripts from an asset server.
  # config.action_controller.asset_host = 'http://assets.example.com'

  # Specifies the header that your server uses for sending files.
  # config.action_dispatch.x_sendfile_header = 'X-Sendfile' # for Apache
  # config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for NGINX

  # Store uploaded files on the local file system (see config/storage.yml for options)
  config.active_storage.service = :local

  # Mount Action Cable outside main process or domain
  # config.action_cable.mount_path = nil
  # config.action_cable.url = 'wss://example.com/cable'
  # config.action_cable.allowed_request_origins = [ 'http://example.com', /http://example.*/ ]

  # Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
  # config.force_ssl = true

  # Use the lowest log level to ensure availability of diagnostic information
  # when problems arise.
  config.log_level = :debug

  # Prepend all log lines with the following tags.
  config.log_tags = [ :request_id ]

  # Use a different cache store in production.
  # config.cache_store = :mem_cache_store

  # Use a real queuing backend for Active Job (and separate queues per environment)
  # config.active_job.queue_adapter     = :resque
  # config.active_job.queue_name_prefix = "BookBook_#{Rails.env}"

  config.action_mailer.perform_caching = false

  # Ignore bad email addresses and do not raise email delivery errors.
  # Set this to true and configure the email server for immediate delivery to raise delivery errors.
  # config.action_mailer.raise_delivery_errors = false

  # Enable locale fallbacks for I18n (makes lookups for any locale fall back to
  # the I18n.default_locale when a translation cannot be found).
  config.i18n.fallbacks = true

  # Send deprecation notices to registered listeners.
  config.active_support.deprecation = :notify

  # Use default logging formatter so that PID and timestamp are not suppressed.
  config.log_formatter = ::Logger::Formatter.new

  # Use a different logger for distributed setups.
  # require 'syslog/logger'
  # config.logger = ActiveSupport::TaggedLogging.new(Syslog::Logger.new 'app-name')

  if ENV["RAILS_LOG_TO_STDOUT"].present?
    logger           = ActiveSupport::Logger.new(STDOUT)
    logger.formatter = config.log_formatter
    config.logger    = ActiveSupport::TaggedLogging.new(logger)
  end

  # Do not dump schema after migrations.
  config.active_record.dump_schema_after_migration = false
end

Comments

[winterboum]

config/environments/production.rb　がおかしいようです。
質問に<coce>を使って追加してください

[marco]

コメントありがとうございます。code追記しました。確認お願いします。

[winterboum]

おかしくないな。
もう少し考えます

[winterboum]

https://teratail.com/questions/230863#reply-337013　が同じようなトラブルを解決したようです

[marco]

コメントありがとうございます。ちょっと試してみます。

[marco]

Capistranoを使ってないので、これじゃないような気がします。

[marco]

あのー、ひょっとしてひょっとするかもと、試しに、エラーになってる部分/var/www/rails/BookBook/config/environments/production.rb:5:
をコメントアウトして、全部のconfig該当部分をコメントアウトして、を試していくと
なぜかunicorn起動できました。
そのままなぜか、デプロイできました。

[winterboum]

とりあえずはおめでとうございます

[marco]

ありがとうございます。プロイできて嬉しいですが全然わからない部分もあるので、
もう少し原因追求しようと思います。

Answer 1

いい方法なのかは不明ですが、エラーがでた部分のコードをコメントアウトしました。