1. nginx 对外提供服务的wordpress 路径为: http://www.example.com/blog
2. wordpress 服务的实际地址为 http://127.0.0.1:8080

location ^~ /blog/ {
  proxy_pass http://127.0.0.1:8080/;
  proxy_set_header Host $http_host;
  proxy_set_header X-Forwarded-Host $http_host;
  proxy_set_header X-Real-IP $remote_addr;
  proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
  proxy_set_header X-Forwarded-Proto $scheme;
}

# 重新加载 nginx 配置
$ systemctl reload nginx

修改 wp-config.php 文件，添加如下内容

/** set the site URL */
define('WP_HOME','http://www.example.com/blog');
define('WP_SITEURL','http://www.example.com/blog');

/** Fix to get the dashboard working with the reverse proxy.*/
$_SERVER['REQUEST_URI'] = str_replace("/wp-admin/", "/blog/wp-admin/",  $_SERVER['REQUEST_URI']);

1. 修改 option_name 为 siteurl 的 option_value 为 /blog
2. 修改 option_name 为 home 的 option_value 为 /blog

NGINX Proxy to wordpress website

Fix wordpress redirect when it behind a reverse proxy