capistrano rbenv unicornでレールアプリを配備

Question

配備中にユニコーンを見つめることに問題があります。

バンドルのexecレールCの生産

deployer@cloud-number-nine:~/qna/current$ bundle exec rails c production 
[DEPRECATION] the dotenv-deployment gem is deprecated. See https://github.com/bkeepers/dotenv-deployment#readme. 
/home/deployer/qna/releases/20160521190207/app/serializers/votable_serializer.rb:5:in `<class:VotableSerializer>': undefined method `root=' for VotableSerializer:Class (NoMethodError) 
    from /home/deployer/qna/releases/20160521190207/app/serializers/votable_serializer.rb:2:in `<top (required)>' 
    from /home/deployer/qna/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `require' 
    from /home/deployer/qna/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `block in require' 
    from /home/deployer/qna/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:240:in `load_dependency' 
    from /home/deployer/qna/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `require' 
    from /home/deployer/qna/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:360:in `require_or_load' 
    from /home/deployer/qna/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:317:in `depend_on' 
    from /home/deployer/qna/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:233:in `require_dependency' 
    from /home/deployer/qna/shared/bundle/ruby/2.3.0/gems/railties-4.2.5/lib/rails/engine.rb:472:in `block (2 levels) in eager_load!' 
    from /home/deployer/qna/shared/bundle/ruby/2.3.0/gems/railties-4.2.5/lib/rails/engine.rb:471:in `each' 
    from /home/deployer/qna/shared/bundle/ruby/2.3.0/gems/railties-4.2.5/lib/rails/engine.rb:471:in `block in eager_load!' 
    from /home/deployer/qna/shared/bundle/ruby/2.3.0/gems/railties-4.2.5/lib/rails/engine.rb:469:in `each' 
    from /home/deployer/qna/shared/bundle/ruby/2.3.0/gems/railties-4.2.5/lib/rails/engine.rb:469:in `eager_load!' 
    from /home/deployer/qna/shared/bundle/ruby/2.3.0/gems/railties-4.2.5/lib/rails/engine.rb:346:in `eager_load!' 
    from /home/deployer/qna/shared/bundle/ruby/2.3.0/gems/railties-4.2.5/lib/rails/application/finisher.rb:56:in `each' 
    from /home/deployer/qna/shared/bundle/ruby/2.3.0/gems/railties-4.2.5/lib/rails/application/finisher.rb:56:in `block in <module:Finisher>' 
    from /home/deployer/qna/shared/bundle/ruby/2.3.0/gems/railties-4.2.5/lib/rails/initializable.rb:30:in `instance_exec' 
    from /home/deployer/qna/shared/bundle/ruby/2.3.0/gems/railties-4.2.5/lib/rails/initializable.rb:30:in `run' 
    from /home/deployer/qna/shared/bundle/ruby/2.3.0/gems/railties-4.2.5/lib/rails/initializable.rb:55:in `block in run_initializers' 
    from /home/deployer/.rbenv/versions/2.3.0/lib/ruby/2.3.0/tsort.rb:228:in `block in tsort_each' 
    from /home/deployer/.rbenv/versions/2.3.0/lib/ruby/2.3.0/tsort.rb:350:in `block (2 levels) in each_strongly_connected_component' 
    from /home/deployer/.rbenv/versions/2.3.0/lib/ruby/2.3.0/tsort.rb:431:in `each_strongly_connected_component_from' 
    from /home/deployer/.rbenv/versions/2.3.0/lib/ruby/2.3.0/tsort.rb:349:in `block in each_strongly_connected_component' 
    from /home/deployer/.rbenv/versions/2.3.0/lib/ruby/2.3.0/tsort.rb:347:in `each' 
    from /home/deployer/.rbenv/versions/2.3.0/lib/ruby/2.3.0/tsort.rb:347:in `call' 
    from /home/deployer/.rbenv/versions/2.3.0/lib/ruby/2.3.0/tsort.rb:347:in `each_strongly_connected_component' 
    from /home/deployer/.rbenv/versions/2.3.0/lib/ruby/2.3.0/tsort.rb:226:in `tsort_each' 
    from /home/deployer/.rbenv/versions/2.3.0/lib/ruby/2.3.0/tsort.rb:205:in `tsort_each' 
    from /home/deployer/qna/shared/bundle/ruby/2.3.0/gems/railties-4.2.5/lib/rails/initializable.rb:54:in `run_initializers' 
    from /home/deployer/qna/shared/bundle/ruby/2.3.0/gems/railties-4.2.5/lib/rails/application.rb:352:in `initialize!' 
    from /home/deployer/qna/releases/20160521190207/config/environment.rb:5:in `<top (required)>' 
    from /home/deployer/qna/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `require' 
    from /home/deployer/qna/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `block in require' 
    from /home/deployer/qna/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:240:in `load_dependency' 
    from /home/deployer/qna/shared/bundle/ruby/2.3.0/gems/activesupport-4.2.5/lib/active_support/dependencies.rb:274:in `require' 
    from /home/deployer/qna/shared/bundle/ruby/2.3.0/gems/railties-4.2.5/lib/rails/application.rb:328:in `require_environment!' 
    from /home/deployer/qna/shared/bundle/ruby/2.3.0/gems/railties-4.2.5/lib/rails/commands/commands_tasks.rb:142:in `require_application_and_environment!' 
    from /home/deployer/qna/shared/bundle/ruby/2.3.0/gems/railties-4.2.5/lib/rails/commands/commands_tasks.rb:67:in `console' 
    from /home/deployer/qna/shared/bundle/ruby/2.3.0/gems/railties-4.2.5/lib/rails/commands/commands_tasks.rb:39:in `run_command!' 
    from /home/deployer/qna/shared/bundle/ruby/2.3.0/gems/railties-4.2.5/lib/rails/commands.rb:17:in `<top (required)>' 
    from bin/rails:9:in `require' 
    from bin/rails:9:in `<main>' 

Capfile：：私は"app_name"/currentディレクトリから実行するかのようにスタックトレースが同じである

# Load DSL and set up stages 
require 'capistrano/setup' 

# Include default deployment tasks 
require 'capistrano/deploy' 
require 'capistrano/rbenv' 
require 'capistrano/bundler' 
require 'capistrano/rails' 
require 'capistrano/sidekiq' 
require 'capistrano3/unicorn' 
require 'whenever/capistrano' 
require 'thinking_sphinx/capistrano' 

Dir.glob('lib/capistrano/tasks/*.rake').each { |r| import r } 

deploy.rb

# config valid only for current version of Capistrano 
lock '3.5.0' 

set :application, 'qna' 
set :repo_url, 'git@github.com:khataev/qna.git' 

# Default deploy_to directory is /var/www/my_app_name 
set :deploy_to, '/home/deployer/qna' 
set :deploy_user, 'deployer' 

# Default value for :linked_files is [] 
set :linked_files, fetch(:linked_files, []).push('config/database.yml', 'config/private_pub.yml', 'config/private_pub_thin.yml', '.env') 

# Default value for linked_dirs is [] 
set :linked_dirs, fetch(:linked_dirs, []).push('log', 'tmp/pids', 'tmp/cache', 'tmp/sockets', 'public/system', 'vendor/bundle', 'public/uploads') 

# rbenv 
set :rbenv_type, :user # or :system, depends on your rbenv setup 
set :rbenv_ruby, '2.3.0' 

set :rbenv_prefix, "RBENV_ROOT=#{fetch(:rbenv_path)} RBENV_VERSION=#{fetch(:rbenv_ruby)} #{fetch(:rbenv_path)}/bin/rbenv exec" 
# set :rbenv_map_bins, %w(rake gem bundle ruby rails) 
set :rbenv_roles, :all # default value 
set :bundle_binstubs, nil 

namespace :deploy do 
    desc 'Restart application' 
    task :restart do 
    on roles(:app), in: :sequence, wait: 5 do 
     # execute :touch, release_path.join('tmp/restart.txt') 
     invoke 'unicorn:restart' 
    end 
    end 

    after :publishing, :restart 
end 

namespace :private_pub do 
    desc 'Start private_pub server' 
    task :start do 
    on roles(:app) do 
     within current_path do 
     with rails_env: fetch(:rails_env) do 
      execute :bundle, 'exec thin -C config/private_pub_thin.yml start' 
     end 
     end 
    end 
    end 

    desc 'Stop private_pub server' 
    task :stop do 
    on roles(:app) do 
     within current_path do 
     with rails_env: fetch(:rails_env) do 
      execute :bundle, 'exec thin -C config/private_pub_thin.yml stop' 
     end 
     end 
    end 
    end 

    desc 'Restart private_pub server' 
    task :restart do 
    on roles(:app) do 
     within current_path do 
     with rails_env: fetch(:rails_env) do 
      execute :bundle, 'exec thin -C config/private_pub_thin.yml restart' 
     end 
     end 
    end 
    end 
end 

after 'deploy:restart', 'private_pub:restart' 
after 'deploy:restart', 'thinking_sphinx:restart' 

ユニコーン/ production.rb

# paths 
app_path = '/home/deployer/qna' 
working_directory "#{app_path}/current" 
pid    "#{app_path}/current/tmp/pids/unicorn.pid" 

# listen 
listen '/tmp/unicorn.qna.sock', backlog: 64 

# logging 
stderr_path 'log/unicorn.stderr.log' 
stdout_path 'log/unicorn.stdout.log' 

# workers 
worker_processes 2 

# use correct Gemfile on restarts 
before_exec do |_server| 
    ENV['BUNDLE_GEMFILE'] = "#{app_path}/current/Gemfile" 
end 

# preload 
preload_app true 

before_fork do |server, _worker| 
    # the following is highly recomended for Rails + "preload_app true" 
    # as there's no need for the master process to hold a connection 
    ActiveRecord::Base.connection.disconnect! if defined?(ActiveRecord::Base) 

    # Before forking, kill the master process that belongs to the .oldbin PID. 
    # This enables 0 downtime deploys. 
    old_pid = "#{server.config[:pid]}.oldbin" 
    if File.exist?(old_pid) && server.pid != old_pid 
    begin 
     Process.kill('QUIT', File.read(old_pid).to_i) 
    rescue Errno::ENOENT, Errno::ESRCH 
     # someone else did our job for us 
    end 
    end 
end 

after_fork do |_server, _worker| 
    ActiveRecord::Base.establish_connection if defined?(ActiveRecord::Base) 
end 

votable serializer

問題がrbenvとユニコーンの間にあるが、私はSHUREないよというのが私の意見...

Answer 1

私はあなたの問題は、実際にではないと信じていますユニコーンに関連する。上記のコメントでは、"乗客からユニコーンに移行するまでは、生産上の問題は発生しませんでした。"。しかし、ユニコーンに切り替えるコミットrevealsこのステップの間に active_model_serializers宝石はバージョンバージョン0.9.5から0.10.0にアップグレードされました。

それはself.root=方法は、もはやクラスのコンテキストで使用することができないようですので、これはあなたのシリアライザのために重要であることが判明 - それは今ActiveModel::Serializerクラスの通常のattr_accessorである、すなわちすべてであれば、それはする必要がありますインスタンスのコンテキストで使用されます。 new versionとold versionとの比較を参照してください。

とにかく、オブジェクトをシリアライズするときにルートを含めない場合は、 - nowのデフォルト - AttributesAdapterに切り替えることができます。お使いのコントローラにrendering the objectsがある場合は、adapter: :attributesを使用することができます。