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Apach, NginxをプロキシにしたRailsアプリでhttpsがリダイレクト時にhttpになる問題

Last updated at Posted at 2013-04-13

HTTPSオンリーのRailsのアプリ(Redminなど)でApacheをリバースプロキシにした場合、リダイレクトがHTTPになってしまう。。。

これを対処するにはRequestHeaderディレクティブでApacheからバックエンドのアプリケーションサーバへのX_FORWARDED_PROTOヘッダを付与させるようにする。

Apacheの場合

RequestHeader set X_FORWARDED_PROTO 'https'

設定例)

ApacheでRedminのリバースプロキシHTTPSオンリーにする
<VirtualHost *:443>
    # SSL の細かい設定(^^;
    RequestHeader set X_FORWARDED_PROTO 'https'
    ProxyPass /rails http://localhost:3000/rails
    ProxyPassReverse /rails http://localhost:3000/rails
</VirtualHost>

参考
http://webos-goodies.jp/archives/51261261.html

Nginxの場合

proxy_set_header X-Forwarded-Proto https;

設定例)

upstream backend {
  server unix:/data/apps/current/tmp/sockets/unicorn.sock max_fails=3 fail_timeout=10s;
}
 location / {
    proxy_set_header Host $http_host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-Host $host;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header X-Forwarded-Proto https;
    if (!-f $request_filename) { proxy_pass http://backend; }
  }

参考
nginx で SSL解きリバースプロキシな設定のお作法 - Qiita

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