upstream mongodb {
    server 83.212.77.66:28017;  
    server 83.212.77.74:28017;  
    server 83.212.77.49:28017;  
      
}
proxy_cache_path /var/tmp levels=1:2 keys_zone=my_cache:10m max_size=10g inactive=60m use_temp_path=off;
server {
    listen 80;
    listen [::]:80;  
    server_name mongodb.example.org$request_uri; 
   location / {
       return 301 https://83.212.77.66;
        }
    }
}
server {
    listen 443 default_server;
    listen [::]:443 http2 ssl default_server;
    server_name nginx;
    
    # Your favorite resolver may be used instead of the Google one below
    resolver 8.8.4.4 8.8.8.8 valid=300s;
    resolver_timeout 10s;
    root /var/www;
    index index.html;
    location /nginx-status {
	default_type application/json;
    	return 200 '{"code":"1", "message": "Healthcheck OK"}';
    }
    location ~^/(contacts|app-back-status) {
    	proxy_pass       http://app-back:3000;
    	proxy_set_header Host      $host;
    	proxy_set_header X-Real-IP $remote_addr;
    }
}