Nginx 服务器重定向循环

Question

今晚部署后，我的 nginx 服务器不断收到 301 重定向到相同的 URI，因此浏览器不会加载该网站。它是一个 docker 容器内的节点应用程序，总共有 4 个容器：app、wordpress、redis、nginx。我很确定我没有更改 docker 项目中 nginx 配置中的任何内容，只是更改了子项目（src-folder）。我什至将所有更改恢复到之前的状态，但问题仍然存在。

普通 URL 和 Wordpress 域都不会加载，它总是 301 重定向到根目录。

配置应将所有流量从非 SSL 301 重定向到 SSL 并呈现页面。

我的配置如下所示：

upstream node {
    server app:3000;
}

server {
        listen 80;
        server_name example.com www.example.com;

        return 301 https://example.com;
}

server {
    listen 80;
    server_name wordpress.example.com;

    return 301 https://example.com;
}

server {
        listen 443;
        server_name www.example.com;
    ssl_certificate /etc/nginx/ssl/example.com.cert;
    ssl_certificate_key /etc/nginx/ssl/example.com.key;

        return 301 https://example.com;
}
server {
    listen 443 default ssl;
    server_name example.com;
    root /var/www/html/project;

    ssl_certificate /etc/nginx/ssl/example.com.cert;
    ssl_certificate_key /etc/nginx/ssl/example.com.key;

    set $isopen 0;


    location / {
        proxy_pass http://node;
        proxy_set_header Host $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;
        proxy_set_header Accept-Encoding "";
        proxy_set_header Proxy "";
        expires off;
    }
    location /lp/ {
        proxy_ssl_server_name on;
        proxy_pass https://sub.example.com/folder/;
    }
}

server {
    listen 443 ssl;
    server_name wordpress.example.com;
    ssl_certificate /etc/nginx/ssl/wordpress.example.com.cert;
    ssl_certificate_key /etc/nginx/ssl/wordpress.example.com.key;

    error_page 397 https://$host:$server_port$request_uri;

    set $isopen 0;

    if ($request_uri ~ '^/wp-json/wp/v2/.*') {
        set $isopen 1;
    }
    if ($request_uri ~ '^/wp-includes/.*') {
        set $isopen 1;
    }
    if ($request_uri ~ '^/wp-content/.*') {
        set $isopen 1;
    }
    if ($request_uri ~ '^/wp-admin/.*') {
        set $isopen 1;
    }
    if ($request_uri ~ '^/wp-login.php') {
        set $isopen 1;
    }
    if ($request_uri ~ '^/wp-admin/.*\.(php|css|js)') {
        set $isopen 1;
    }
    if ($isopen !~ 1) {
        return 301 https://$server_name/wp-admin/;
    }

    location / {
            proxy_pass https://wordpress;
        proxy_set_header Host $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;
            proxy_set_header Accept-Encoding "";
            proxy_set_header Proxy "";
            expires off;
       }
}

我的 docker 容器侦听以下端口：

Containers statuses 
              Name                            Command               State                      Ports                    
------------------------------------------------------------------------------------------------------------------------
project_app_1         bash -c npm install && npm ...   Up                                                  
project_redis_1       docker-entrypoint.sh redis ...   Up      6379/tcp                                    
project_web-srv_1     nginx -g daemon off;             Up      0.0.0.0:44301->443/tcp, 0.0.0.0:8080->80/tcp
project_wordpress_1   docker-entrypoint.sh apach ...   Up      443/tcp, 80/tcp                             

 Network status 
Network name                    Network subnet      Network gateway
project_network    172.100.112.0/24    172.100.112.1

Container name                      Container IPv4 address
project_wordpress_1    172.100.112.50/24
project_web-srv_1      172.100.112.30/24
project_app_1          172.100.112.40/24
project_redis_1        172.100.112.20/24

希望有人可以帮助我。提前致谢。