Прокси перейти в подпапку

У меня два сайта.

example.com example.com/abc

Я хотел бы пройти прокси-сервер при доступе к example.com/abc с другого IP-адреса.

Вот мои текущие сайты с поддержкой nginx.

Я также нашел эту статью со следующим кодом. Мне интересно, как лучше всего реализовать это изменение в моем текущем файле.

образец кода

location ~/app2(.*)$ {
    proxy_set_header X-Real-IP  $remote_addr;
    proxy_set_header X-Forwarded-For $remote_addr;
    proxy_set_header Host $host;
    proxy_pass http://aaa.bbb.ccc.ddd:8001$1;
}

вот моя текущая конфигурация nginx:

# Ansible manage

server {
    listen [::]:443 ssl http2;
    listen 443 ssl http2;
    server_name example.com;

    location /yaan2/ {
        proxy_pass http://104.248.170.227/3000;
        proxy_redirect off;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }

    access_log   /srv/www/example/logs/access.log main;
    error_log    /srv/www/example/logs/error.log;

    root  /srv/www/example/current/web;
    index index.php index.htm index.html;
    add_header Fastcgi-Cache $upstream_cache_status;

    # Specify a charset
    charset utf-8;

    # Set the max body size equal to PHP's max POST size.
    client_max_body_size 25m;

    # Multisite rewrites
    if (!-e $request_filename) {
        rewrite /wp-admin$ $scheme://$host$uri/ permanent;
        rewrite ^(/[^/]+)?(/wp-.*) /wp$2 last;
        rewrite ^(/[^/]+)?(/.*\.php) /wp$2;
    }

    # SSL configuration
    include h5bp/directive-only/ssl.conf;
    include h5bp/directive-only/ssl-stapling.conf;
    ssl_dhparam /etc/nginx/ssl/dhparams.pem;
    ssl_buffer_size 1400; # 1400 bytes to fit in one MTU

    add_header Strict-Transport-Security "max-age=31536000; includeSubDomains; ";

    ssl_certificate         /etc/nginx/ssl/letsencrypt/example-696196a-bundled.cert;
    ssl_certificate_key     /etc/nginx/ssl/letsencrypt/example.key;

    include acme-challenge-location.conf;

    include includes.d/all/*.conf;
    include includes.d/example/*.conf;

    # Prevent PHP scripts from being executed inside the uploads folder.
    location ~* /app/uploads/.*\.php$ {
        deny all;
    }

    location / {
        try_files $uri $uri/ /index.php?$args;
    }

    include h5bp/directive-only/cache-file-descriptors.conf;
    include h5bp/directive-only/extra-security.conf;
    include h5bp/directive-only/x-ua-compatible.conf;
    include h5bp/location/cross-domain-fonts.conf;
    include h5bp/location/protect-system-files.conf;

    add_header Content-Security-Policy "frame-ancestors 'self'" always;

    # Conditional X-Frame-Options until https://core.trac.wordpress.org/ticket/40020 is resolved
    set $x_frame_options SAMEORIGIN;
    if ($arg_customize_changeset_uuid) {
        set $x_frame_options "";
    }
    add_header X-Frame-Options $x_frame_options always;

    location ~ \.php$ {
        try_files $uri /index.php;

        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $realpath_root$fastcgi_script_name;
        fastcgi_param DOCUMENT_ROOT $realpath_root;
        fastcgi_pass unix:/var/run/php-fpm-wordpress.sock;
    }
}

# Redirect to https
server {
    listen [::]:80;
    listen 80;
    server_name example.com;

    include acme-challenge-location.conf;

    include includes.d/all/*.conf;
    include includes.d/example/*.conf;

    location / {
        return 301 https://$host$request_uri;
    }
}