Error: cURL error 28: Resolving timed out after 10000 milliseconds (http_request

Hi,

This issue is from Site Health but my environment is in docker. So I think is important to provide context.

I am trying to set up a local WordPress environment using Docker Compose with Nginx reverse proxy. WordPress. works but in Site Health I get:

Error: cURL error 28: Resolving timed out after 10000 milliseconds (http_request_failed)

This my docker-compose file

    version: '3.1'
    
    services:
    
      web:
        image: nginx
        ports:
          - "80:80"
        volumes:
          - ./site.conf:/etc/nginx/conf.d/site.conf
        depends_on:
          - wordpress
          - db
    
      wordpress:
        image: wordpress
        expose:
          - 80
        environment:
          WORDPRESS_DB_HOST: db
          WORDPRESS_DB_USER: local_user
          WORDPRESS_DB_PASSWORD: secret
          WORDPRESS_DB_NAME: local
        volumes:
          - ./wordpress:/var/www/html
    
      db:
        image: mysql:5.7
        environment:
          MYSQL_DATABASE: local
          MYSQL_USER: local_user
          MYSQL_PASSWORD: secret
          MYSQL_ROOT_PASSWORD: root_secret
        ports:
          - 3306:3306
        volumes:
          - ./mysql:/var/lib/mysql

this is my Nginx config file:

    upstream backend{
        server wordpress:80;
    }
    
    server {
        listen 80;
        listen [::]:80;
    
        index index.php index.html;
        server_name bedrock.local; 
        # error_log  /var/log/nginx/error.log;
        # access_log /var/log/nginx/access.log;
        # root /code/web;
    
        location / {
            proxy_pass https://backend/;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header X-Forwarded-Host $host;
            proxy_set_header X-Real-IP $remote_addr;
        }
    
    }

bedrock.local domain resolves locally with 127.0.0.1 in /etc/hosts
I’m not using HTTPS (just HTTP) to simplify the test.

Thanks!