Ruby/rails/unicorn

unicornとは

rubyのアプリサーバー

unicornインストール

gem install unicorn

プロジェクトにunicorn設定追加

新規追加

config/unicorn.rb

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"
listen 8080

unicorn起動

$ unicorn_rails -c config/unicorn.rb -D

環境変数はdevelopment(開発用)となる

unicorn停止

$ kill -QUIT `cat tmp/unicorn.pid`

unicorn-nginx連携

upstream unicorn_server {
    server unix:/home/linux/helloworld/tmp/unicorn.sock;
}
server {
    listen 80;
    server_name localhost;
    root /home/linux/helloworld/public;
    access_log /var/log/nginx/ruby_helloworld_access.log;
    error_log /var/log/nginx/ruby_helloworld_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_server;
    }
}

nginxでPermissionエラーが出る時

connect() to unix:/~/tmp/unicorn.sock failed (13: Permission denied) while connecting to upstream, client:

nginxをrootに変えればとりあえず、うまくいく。

$ sudo vi /etc/nginx/nginx.conf
# user  nginx;
user  root;