Rails デプロイ後のログ出力について

Question

RailsアプリケーションをCapistranoデプロイしたのですが、We're sorry, but something went wrong.エラー(502)となってしまい、ログを確認しようと、/var/www/RailsApp/shared/logを確認したのですが

• ngnix.access.log
• nginx.error.log
• production.log
• unicorn_.stderr.log

にはそれっぽいログが見つからず、Railsのログの出力先が設定されていないかと思うのですが、出力させるにはどのように設定すれば良いでしょうか？
各種ファイルの設定は以下の通りです。ご回答よろしくお願いします。

config/deproy.rb

lock "~> 3.10.2"

set :application, "アプリケーション名"
set :repo_url, "[e-mail]:〇〇/〇〇.git"

 set :deploy_to, '/var/www/RailsApp'

 set :default_env, {
  :DEVISE_SECRET_KEY => ENV['DEVISE_SECRET_KEY']
}

set :format_options, truncate: false

append :linked_files, "config/database.yml"

set :linked_files, %w{config/database.yml config/secrets.yml}
set :linked_dirs, %w{bin log tmp/pids tmp/cache sockets bundle public/system public/assets}
set :unicorn_pid, "#{shared_path}/tmp/pids/unicorn.pid"

set :ssh_options, { verify_host_key: :secure, forward_agent: true }
set :rbenv_type, :user
set :rbenv_ruby, '2.5.1'
set :rbenv_path, '/usr/local/rbenv'
set :log_level, :debug

after 'deploy:publishing', 'deploy:restart'
namespace :deploy do
  task :restart do
    on roles(:app) do
      within current_path do
        if test("[ -e #{fetch(:unicorn_pid)} ]")
          execute :kill, "-s QUIT ", pid
        end
        secret = capture :bundle, "exec rake secret"
        execute "echo SECRET_KEY_BASE='#{secret}' > #{current_path}/.env"
        execute :bundle, "exec unicorn", "-c", fetch(:unicorn_config_path), "-E", fetch(:rails_env), "-D"
      end
    end
  end
end

production.rb

Rails.application.configure do
  config.cache_classes = true
  config.eager_load = true
  config.consider_all_requests_local       = false
  config.action_controller.perform_caching = true
  config.public_file_server.enabled = true
  config.assets.js_compressor = :uglifier
  config.assets.compile = false

  config.log_level = :debug
  config.log_tags = [ :request_id ]
  config.action_mailer.perform_caching = false
  config.i18n.fallbacks = true
  config.active_support.deprecation = :notify
  config.log_formatter = ::Logger::Formatter.new

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

  config.active_record.dump_schema_after_migration = false
  config.assets.precompile += ['*.js']
end

unicorn.rb

rails_root = File.expand_path('../../../', __FILE__)

ENV['BUNDLE_GEMFILE'] = rails_root + "/Gemfile"

worker_processes 2
timeout 30
preload_app true

stderr_path File.expand_path('../../../../log/unicorn_stderr.log', __FILE__)

listen "#{rails_root}/tmp/unicorn.sock"
app_path = File.expand_path('../../../', __FILE__)
shared_path = File.expand_path('../../../../shared/', __FILE__)

before_fork do |server, worker|
  defined?(ActiveRecord::Base) and
      ActiveRecord::Base.connection.disconnect!

  old_pid = "#{server.config[:pid]}.oldbin"
  if old_pid != server.pid
    begin
      sig = (worker.nr + 1) >= server.worker_processes ? :QUIT : :TTOU
      Process.kill(sig, File.read(old_pid).to_i)
    rescue Errno::ENOENT, Errno::ESRCH
    end
  end
end

after_fork do |server, worker|
  defined?(ActiveRecord::Base) and ActiveRecord::Base.establish_connection
end

環境

CentOS7
Nignx
unicorn

Answer 1

ファイルの見方が悪かったようで、unicorn_stderr.logの中に記録されていました