Nginx http proxy cache to mirror of Rubygems.org

nginx.conf

# 在本地服务器建立 rubygems.org 的镜像缓存，以提高 gem 的安装速度
# 此配置设置缓存过期为1天，也就是说，新上的 gem 无法马上安装

proxy_cache_path  /var/cache/rubygems  levels=1:2    keys_zone=RUBYGEMS:10m
                                       inactive=24h  max_size=1g;
server {
  listen 80;
  server_name rubygems.org;
  location / {
    proxy_pass        http://rubygems.org;
    proxy_redirect     off;
    proxy_set_header   Host             $http_host;
    proxy_set_header   X-Real-IP        $remote_addr;
    proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;
    proxy_cache            RUBYGEMS;
    proxy_cache_valid      200  1d;
    proxy_cache_use_stale  error timeout invalid_header updating
                               http_500 http_502 http_503 http_504;
  }
}

server {
  listen 80;
  server_name production.cf.rubygems.org;
  location / {
    proxy_pass        http://production.cf.rubygems.org;
    proxy_redirect     off;
    proxy_set_header   Host             $http_host;
    proxy_set_header   X-Real-IP        $remote_addr;
    proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;
    proxy_cache            RUBYGEMS;
    proxy_cache_valid      200  1d;
    proxy_cache_use_stale  error timeout invalid_header updating
                               http_500 http_502 http_503 http_504;
  }
}

server {
  listen       443;
  server_name  rubygems.org;

  location / {
    proxy_pass https://rubygems.org;
    proxy_redirect     off;
    proxy_set_header   Host             $http_host;
    proxy_set_header   X-Real-IP        $remote_addr;
    proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;
    proxy_cache            RUBYGEMS;
    proxy_cache_valid      200  1d;
    proxy_cache_use_stale  error timeout invalid_header updating
                               http_500 http_502 http_503 http_504;
  }

  ssl                  on;
  ssl_certificate     /etc/nginx/conf/server.crt;
  ssl_certificate_key  /etc/nginx/conf/server.key;

  ssl_session_timeout  5m;
  ssl_protocols  SSLv2 SSLv3 TLSv1;
  ssl_ciphers  ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP;
  ssl_prefer_server_ciphers   on;
}

rubygems_hosts

$ vi /etc/hosts
your.ip.add.ress rubygems.org
your.ip.add.ress production.cf.rubygems.org