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Vagrant(CentOS6.5)にRails4.1 + Nginx + Unicorn + MySQL環境でRailsを起動する。

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Vagrant(CentOS6.5)にRuby2.1.2 Rails4.1をインストールの続き


Nginxインストール

今回はyumから

$ sudo yum install -y nginx


MySQLインストール

同じyumから

$ sudo yum install -y mysql mysql-server mysql-devel


ついでにデフォルトで立ち上げる設定に

$ sudo chkconfig --level 35 nginx on

$ sudo chkconfig --level 35 mysqld on


RailsInstalll

インストールするディレクトリへ

$ mkdir /path/to/dir/ && cd /path/to/dir/

budnlerで管理したいので最初にインストール

$ gem install bundle

RailsInstall

$ rails new myApp --database=mysql

execjsのみでは動かないので、ランタイムも一緒にインストールする。

このタイミングでUnicornもインストール

$ vim Gemfile

source 'https://rubygems.org'

# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '4.1.1'
# Use mysql as the database for Active Record
gem 'mysql2'
# Use SCSS for stylesheets
gem 'sass-rails', '~> 4.0.3'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'
# Use CoffeeScript for .js.coffee assets and views
gem 'coffee-rails', '~> 4.0.0'
# See https://github.com/sstephenson/execjs#readme for more supported runtimes
# gem 'therubyracer', platforms: :ruby

# Use jquery as the JavaScript library
gem 'jquery-rails'
# Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
gem 'turbolinks'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 2.0'
# bundle exec rake doc:rails generates the API under doc/api.
gem 'sdoc', '~> 0.4.0', group: :doc

# Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
gem 'spring', group: :development

# Use ActiveModel has_secure_password
# gem 'bcrypt', '~> 3.1.7'

# Use unicorn as the app server
gem 'unicorn'

# use v8 engine
gem 'therubyracer'

# Use Capistrano for deployment
# gem 'capistrano-rails', group: :development

# Use debugger
# gem 'debugger', group: [:development, :test]

必要なgemをインストール

$ bundle install --path vendor/bundle

database.ymlに設定を追加

$ vim conifg/database.yml


config/database.yml

default: &default

adapter: mysql2
encoding: utf8
pool: 5
username: hoge
password: foobar
socket: /var/lib/mysql/mysql.sock

Database作成

$ rake db:create


Unicorn設定

unicorn設定

$ vim conifg/unicorn.rb


conifg/unicorn.rb

@app_path = '/path/to/dir/myApp'

worker_processes 2
working_directory "#{@app_path}/"

# This loads the application in the master process before forking
# worker processes
# Read more about it here:
# http://unicorn.bogomips.org/Unicorn/Configurator.html
preload_app true

timeout 30

# This is where we specify the socket.
# We will point the upstream Nginx module to this socket later on
listen "/tmp/unicorn.sock", :backlog => 64

pid "/tmp/unicorn.pid"

# Set the path of the log files inside the log folder of the testapp
stderr_path "#{@app_path}/log/unicorn.stderr.log"
stdout_path "#{@app_path}/log/unicorn.stdout.log"

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

sleep 1
end

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



Nginx設定

デフォルトのconfファイルは使用しないので、逃がす

$ sudo mv /etc/nginx/conf.d/default.conf ~

Rails用のconfファイルを編集

$ sudo vim /etc/nginx/conf.d/myapp.conf


/etc/nginx/conf.d/myapp.conf

upstream unicorn_server {

# This is the socket we configured in unicorn.rb
server unix:/tmp/unicorn.sock
fail_timeout=0;
}

server {
listen 80;
client_max_body_size 4G;
server_name _;

keepalive_timeout 5;

# Location of our static files
root /path/to/dir/myApp/public;

location / {
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;
proxy_redirect off;

# If you don't find the filename in the static files
# Then request it from the unicorn server
if (!-f $request_filename) {
proxy_pass http://unicorn_server;
break;
}
}

error_page 500 502 503 504 /500.html;
location = /500.html {
root /path/to/dir/myApp/public;
}
}


設定出来たら、Nginx再起動

$ sudo /etc/init.d/nginx restart


Routing

テスト用にController作成

$ rails g controller Roots index

root(/)にアクセスした場合に、indexActionを見るようにする

$ vim conifg/routes.rb


conifg/routes.rb

Rails.application.routes.draw do

root :to => 'roots#index'

# The priority is based upon order of creation: first created -> highest priority.
# See how all your routes lay out with "rake routes".

# You can have the root of your site routed with "root"
# root 'welcome#index'

# Example of regular route:
# get 'products/:id' => 'catalog#view'

# Example of named route that can be invoked with purchase_url(id: product.id)
# get 'products/:id/purchase' => 'catalog#purchase', as: :purchase

# Example resource route (maps HTTP verbs to controller actions automatically):
# resources :products

# Example resource route with options:
# resources :products do
# member do
# get 'short'
# post 'toggle'
# end
#
# collection do
# get 'sold'
# end
# end

# Example resource route with sub-resources:
# resources :products do
# resources :comments, :sales
# resource :seller
# end

# Example resource route with more complex sub-resources:
# resources :products do
# resources :comments
# resources :sales do
# get 'recent', on: :collection
# end
# end

# Example resource route with concerns:
# concern :toggleable do
# post 'toggle'
# end
# resources :posts, concerns: :toggleable
# resources :photos, concerns: :toggleable

# Example resource route within a namespace:
# namespace :admin do
# # Directs /admin/products/* to Admin::ProductsController
# # (app/controllers/admin/products_controller.rb)
# resources :products
# end
end



unicorn起動

$ bundle exec unicorn_rails -c config/unicorn.rb -E development -D

この画面が出て来れば成功。


その他


unicornの停止

下記のコマンドで終了する事ができます。

$ cat /tmp/unicorn.pid | xargs kill

もしくは全processごと強制終了

$ ps ax | grep unicorn | awk '{print $1}' | xargs kill


エラーが出る場合

project以下のlog/unicorn*.logに出力が吐かれているので、そこからエラー内容を確認


参考

Unicorn fails to start on Vagrant box due to Errno::EPERM

Setting up Unicorn with Nginx

Configuring Nginx and Unicorn