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rails + nginx + unicorn連携

Last updated at Posted at 2014-08-07

#1.サンプルアプリ作成

railsサンプルアプリの作成については以下参照

rails環境構築(CentOS + ruby on rails)

#2.nginxインストール

####### リポジトリファイルの作成

$ sudo vim /etc/yum.repos.d/nginx.repo

####### 以下を記載し保存

[nginx]
name=nginx repo
baseurl=http://nginx.org/packages/centos/6/$basearch/
gpgcheck=0
enabled=0

####### nginxのインストール

$ sudo yum --enablerepo=nginx install nginx

####### バージョン確認

$ nginx -v

#3.unicorn <-> nginx連携

unicorn側の設定

####### アプリ用ユーザに切り替え

$ su - rails

####### Gemfileの設定(unicornの行をコメントイン)

$ cd ~/sample/
$ vim Gemfile

####### Gemfileより該当unicornのインストール

$ bundle install --path=~/sample/vendor/bundle

####### unicorn用ファイル作成

$ vim ~/sample/config/unicorn.rb

####### 以下を記載し保存

rails_root = File.expand_path('../../', __FILE__)
 
worker_processes 2
working_directory rails_root
 
listen "#{rails_root}/tmp/unicorn.sock"
pid "#{rails_root}/tmp/unicorn.pid"
 
stderr_path "#{rails_root}/log/unicorn_error.log"
stdout_path "#{rails_root}/log/unicorn.log"

nginx側の設定

####### nginx用設定ファイル作成

$ sudo cp /etc/nginx/conf.d/default.conf /etc/nginx/conf.d/sample.conf
$ vim /etc/nginx/conf.d/sample.conf

####### 以下のとおりに記載し保存

upstream unicorn {
   # nginxとunicornの連携
   # ↑で作成したunicorn.rbで設定したunicorn.sockを指定
 server unix:/home/rails/sample/tmp/unicorn.sock;
}
 
server {
  listen 80;
  server_name <サーバ名>;
 
  root /home/rails/sample/public;
 
  access_log /var/log/nginx/sample_access.log;
  error_log /var/log/nginx/sample_error.log;
 
  client_max_body_size 100m;
  error_page 500 502 503 504 /500.html;
   
  try_files $uri/index.html $uri @unicorn;
 
  location @unicorn {
   proxy_set_header X-Real-IP $remote_addr;
   proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
   proxy_set_header Host $http_host;
   proxy_pass http://unicorn;
   }
}

####### nginxの起動

$ sudo /etc/init.d/nginx start

####### unicornの起動

$ su - rails
$ cd ~/sample/
$ bundle exec unicorn_rails -c config/unicorn.rb -p 3000 -E development -D

####### unicorn起動確認

$ ps -ef | grep unicorn | grep -v grep

####### ブラウザにて確認

http://<サーバ名>

####### unicornの停止

$ kill -QUIT <pid(tmp/unicorn.pidに記載されてる)>
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