備忘録: nginx でアクセス元 IP レンジに応じて Web アプリケーションを切り替える ref: http://qiita.com/kitsuyui/items/aefb3f301fd4f7004d81

file1.txt

$ sudo service nginx configtest && sudo service nginx reload

site.example.com.conf

upstream usual_server {
  server 127.0.0.1:8080;
}

upstream testing_server {
  server 127.0.0.1:8081;
}

geo $maintenance {
  default 0;
  # 許可したい IP レンジ
  192.168.100.105/32 1;
}

server {
  if ($maintenance = 0) {
    set $target_proxy_server "usual_server";
  }

  if ($maintenance = 1) {
    set $target_proxy_server "testing_server";
  }

  location / {
    proxy_pass http://$target_proxy_server;
  }
}

だめな例

if ($maintenance = 1) {
  location / {
    proxy_pass http://$testing_server;
  }
}
if ($maintenance = 0) {
  location / {
    proxy_pass http://$usual_server;
  }
}