[備忘録] Apache+Railsの設定 - mod_proxy_balancer利用

vhost.conf

<virtualhost *:80>
  ServerName domain.name
  DocumentRoot /path/to/rails/public
  ErrorLog /path/to/log-error.log
  SetEnvIf Request_URI "\.(gif)|(jpg)|(png)|(css)$" nolog
  CustomLog /path/to/log-error.log-access.log combined env=!nolog

  RewriteEngine On

  <Proxy balancer://rails>
    BalancerMember http://192.168.1.1:3000
    BalancerMember http://192.168.1.2:3000
  </Proxy>

  RewriteCond %{DOCUMENT_ROOT}/%{REQUEST_FILENAME} !-f
  RewriteRule ^/(.*)$ balancer://rails%{REQUEST_URI} [P,QSA,L]

  ProxyPass / balancer://rails/
  ProxyPassReverse / balancer://rails/
  ProxyPreserveHost on

  <Proxy *>
    Order deny,allow
    Allow from all
  </Proxy>

</virtualhost>